Tag Archives: bearing china

China OEM Motor parts engine spare ball bearing 6012 2Z C3 deep groove ball bearing

Product Description

Company Profile

Motor parts engine spare ball bearing 6012 2Z C3

Deep groove bearing Specification

1.Bearing Factory more than 20 years
2.F&D,CBB brand look for distributor and agents.
3.OEM Accepted.
4.ISO9001:2000. TS16949.

The type of bearing component materials used will determine the life span, reliability and performance of the bearings. However, there are many factors affecting the performance of the bearings which include the selection of the load carrying capacity, the rolling contact conditions, and the cleanliness of the operating environment and the dimensional stability of the bearing components.

CZPT bearing company has adopted the carbon-chromium steel material(Gcr15) in our productionof the bearing.

Bearing No.	I.D		O.D		W		Loading Rating(KN)		Steel Ball Parameter		Max Speed
	d		D		B		Dynamic	Static	No.	Size	Grease	Oil
	mm	inch	mm	inch	mm	inch	Cr	Cor	No.	mm	r/min	r/min
6000	10	0.3937	26	1.5716	8	0.3150	4.55	1.95	7	4.763	29000	34000
6001	12	0.4724	28	1.1571	8	0.3150	5.10	2.39	8	4.763	26000	30000
6002	15	0.5906	32	1.2598	9	0.3543	5.60	2.84	9	4.763	22000	26000
6003	17	0.6693	35	1.3780	10	0.3937	6.80	3.35	10	4.763	20000	24000
6004	20	0.7874	42	1.6535	12	0.4724	9.40	5.05	9	6.350	18000	21000
6005	25	0.9843	47	1.8504	12	0.4724	10.10	5.85	10	6.350	15000	18000
6006	30	1.1811	55	2.1654	13	0.5118	13.20	8.30	11	7.144	13000	15000
6007	35	1.3780	62	2.4409	14	0.5512	16.00	10.30	11	7.938	12000	14000
6008	40	1.5748	68	2.6772	15	0.5906	16.80	11.50	12	7.938	10000	12000
6009	45	1.7717	75	2.9528	16	0.6299	21.00	15.10	12	8.731	9200	11000
6571	50	1.9685	80	3.1496	16	0.6299	21.80	16.60	13	8.731	8400	9800
6011	55	2.1654	90	3.5433	18	0.7087	28.30	21.20	12	11.000	7700	9000
6012	60	2.3622	95	3.7402	18	0.7087	29.50	23.20	13	11.000	7000	8300
6013	65	2.5591	100	3.9370	18	0.7087	30.50	25.20	13	11.112	6500	7700
6014	70	2.7559	110	4.3307	20	0.7874	38.00	31.00	13	12.303	6100	7100
6015	75	2.9528	115	4.5276	20	0.7874	39.50	33.50	14	12.303	5700	6700
6016	80	3.1496	125	4.9213	22	0.8661	47.50	40.00	14	13.494	5300	6200

Bearing No.	I.D		O.D		W		Loading Rating(KN)		Steel Ball Parameter		Max Speed
	d		D		B		Dynamic	Static	No.	Size	Grease	Oil
	mm	inch	mm	inch	mm	inch	Cr	Cor	No.	mm	r/min	r/min
6200	10	0.3937	30	1.1811	9	0.3543	5.10	2.39	8	4.763	25000	30000
6201	12	0.4724	32	1.2598	10	0.3937	6.10	2.75	7	5.953	22000	26000
6202	15	0.5906	35	1.3780	11	0.4331	7.75	3.60	8	5.953	19000	23000
6203	17	0.6693	40	1.5748	12	0.4724	9.60	4.60	8	6.747	18000	21000
6204	20	0.7874	47	1.8504	14	0.5512	12.80	6.65	8	7.938	16000	18000
6205	25	0.9843	52	2.571	15	0.5906	14.00	7.85	9	7.938	13000	15000
6206	30	1.1811	62	2.4409	16	0.6299	19.50	11.30	9	9.525	11000	13000
6207	35	1.3780	72	2.8346	17	0.6693	25.70	15.30	9	11.112	9800	11000
6208	40	1.5748	80	3.1496	18	0.7087	29.10	17.80	9	12.000	8700	10000
6209	45	1.7717	85	3.3465	19	0.7480	32.50	20.40	10	12.000	7800	9200
6210	50	1.9685	90	3.5433	20	0.7874	35.00	23.20	10	12.700	7100	8300
6211	55	2.1654	100	3.9370	21	0.8268	43.50	29.20	10	14.288	6400	7600
6212	60	2.3622	110	4.3307	22	0.8661	52.50	36.00	10	15.081	6000	7000
6213	65	2.5591	120	4.7244	23	0.9055	57.50	40.00	10	16.669	5500	6500
6214	70	2.7559	125	4.9213	24	0.9449	62.00	44.00	11	16.462	5100	6000
6215	75	2.9528	130	5.1181	25	0.9843	66.00	49.50	11	17.462	4800	5600
6216	80	3.1496	140	5.5118	26	1.5716	72.50	53.00	11	18.256	4500	5300
6217	85	3.3465	150	5.9055	28	1.1571	83.50	64.00	11	19.844	4200	5000
6218	90	3.5433	160	6.2992	30	1.1811	96.00	71.50	10	22.225	4000	4700

Bearing No.	I.D		O.D		W		Loading Rating(KN)		Steel Ball Parameter		Max Speed
	d		D		B		Dynamic	Static	No.	Size	Grease	Oil
	mm	inch	mm	inch	mm	inch	Cr	Cor	No.	mm	r/min	r/min
6300	10	0.3937	35	1.3780	11	0.4331	8.20	3.50	6	7.144	23000	27000
6301	12	0.4724	37	1.4567	12	0.4724	9.70	4.20	6	7.938	20000	24000
6302	15	0.5906	42	1.6535	13	0.5118	11.40	5.45	7	7.938	17000	21000
6303	17	0.6693	47	1.8504	14	0.5512	13.50	6.55	7	8.731	16000	19000
6304	20	0.7874	52	2.571	15	0.5906	15.90	7.90	7	9.525	14000	27000
6305	25	0.9843	62	2.4409	17	0.6693	21.20	10.90	7	11.500	12000	14000
6306	30	1.1811	72	2.8346	19	0.7480	26.70	15.00	8	12.000	10000	12000
6307	35	1.3780	80	3.1496	21	0.8268	33.50	19.10	8	13.494	8800	10000
6308	40	1.5748	90	3.5433	23	0.9055	40.50	24.00	8	15.081	7800	9200
6309	45	1.7717	100	3.9370	25	0.9843	53.00	32.00	8	17.462	7000	8200
6310	50	1.9685	110	4.3307	27	1.0630	62.00	38.50	8	19.050	6400	7500
6311	55	2.1654	120	4.7244	29	1.1417	71.50	45.00	8	20.638	5800	6800
6312	60	2.3622	130	5.1181	31	1.2205	82.00	52.00	8	22.225	5400	6300
6313	65	2.5591	140	5.5118	33	1.2992	92.50	60.00	8	24.000	4900	5800
6314	70	2.7559	150	5.9055	35	1.3780	104.00	68.00	8	25.400	4600	5400
6315	75	2.9528	160	6.2992	37	1.4567	113.00	77.00	8	26.988	4300	5000
6316	80	3.1496	170	6.6929	39	1.5354	123.00	86.50	8	28.575	4000	4700

Packaging & Shipping

Packaging Detail	1.Industrial Exporting Package with anti-tarnish paper/Carton/Pallet 2. Individual plastic/Carton/pallet 3. As the customers’ requirements
Delivery Detail	30-45 days for normal order

One of the leading bearing manufacturers and exporters in China

China CZPT Bearing Corporation was established in 1996 and is 1 of the leading bearing manufacturers and exporters in China. CZPT specializes in the design and production of high quality, high precision deep groove ball bearings and pillow block bearings. At present, the Corporation has more than 1,000 employees, a fixed assets of 1.05 billion yuan, and produces 250 million sets of bearings annually. In 2571, the Corporation achieved bearing sales of 650 million yuan. The Corporation’s products are widely used in more than 50 countries and regions under 2 independent brands, namely “F&D” and “FLATE”. Now CZPT created new brand “CBB”.

Research and Development

Since 2008, the Corporation has set up a Research & Development Center equipped with multiple laboratories used for precision measurement, mechanical testing, lifespan testing, and physicochemical testing, to continuously upgrade its skills and raise its manufacturing standard and product’s precision. Our workshops are installed with a series of advanced numerically-controlled, grinding and assembly equipment that utilize centralized filtration and cooling systems. Together with the production equipment suppliers, we developed these grinding, ultra-precision, fully automated integrated production lines, and own the intellectual property rights. The precision level of the products are at P5 level and above, with noise level CZPT Z4, V4 and above. Some of our projects have exceeded the 30% precision reserves. Our products are widely used in electric motors, automobiles, motorcycles, household appliances, textile, electric tools and water pump equipment industries, both locally and globally.

Our Trade Partner

Why Choose US

About US

Fuda Bearing Corporation Co., Ltd. was founded in 1996, and became 1 of Chinese largest bearing manufacturers and exporters. which specializes in designing and producing deep groove ball bearings, pillow block bearings with high quality & precision. After more than 10 years’hard work, CZPT has developed into a high-tech company that is capable of bearing research & development, manufacturing, and marketing. The Corporation consists of 5 subsidiaries including ZHangZhoug CZPT Bearing Co., Ltd, Flate Precision Tech. Co.,Ltd, HangZhou Unit Machinery Co., Ltd, HangZhou Oyat Bearing Co.,Ltd, CZPT Bearing Corporation Imp.& Exp.Co.Ltd. Now CZPT has employees more than 1000 with the fixed assets of RMB 1.05 billion. And the annual production capacity can reach 25 million sets. In 2571, the bearing sales volume was RMB 650 millions.Besides it creates 2 self-owned brands called F&Dand FLATE. The products are well received in more than 50 countries and regions.

Certifications

Quality Assurance
Product quality is the lifeline of an enterprise. In order to possessing the leading technology, our company implements the quality control system and establishes a technical and strict inspection team. As per the regulation of three-dimensional management and multiple checks, each product was inspected by the producer, inspector, inspection department and quality department elaborately, especially to the important inspection items and precision inspection item.

Our Service
High quality, good credit and excellent service are the tenet of our company. Customers’satisfaction is our lifeline, as well as our highest honor. We will do our best to meet your requirements, and will do better in the future.

Marketing

Thanks for your time to review our CZPT bearing (F&D bearing brand) !!!

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Aligning:	Non-Aligning Bearing
Separated:	Unseparated
Rows Number:	Single
Load Direction:	Radial Bearing
Vibration:	V2 /V3/V4
Item name:	ball bearing

Samples:	US$ 0.1/Piece 1 Piece(Min.Order) \| Request Sample

Customization:	Available \| Customized Request

ball bearing

What are the Challenges Associated with Noise Reduction in Ball Bearings?

Noise reduction in ball bearings is a crucial consideration, especially in applications where noise levels must be minimized for operational efficiency and user comfort. While ball bearings are designed to operate smoothly, there are several challenges associated with reducing noise in their operation:

Vibration:

Vibration generated by the movement of rolling elements and raceways can lead to noise. Even minor irregularities in bearing components or the mounting system can cause vibration that translates into audible noise.

Bearing Type and Design:

The type and design of the ball bearing can impact noise generation. For example, deep groove ball bearings are known for their quiet operation, while angular contact bearings can generate more noise due to their higher contact angles.

Lubrication:

Improper or inadequate lubrication can result in increased friction and wear, leading to noise. Choosing the right lubricant and maintaining proper lubrication levels are essential for reducing noise in ball bearings.

Bearing Clearance and Preload:

Incorrect clearance or preload settings can lead to noise issues. Excessive clearance or inadequate preload can cause the rolling elements to impact the raceways, resulting in noise during rotation.

Material and Manufacturing Quality:

The quality of materials and manufacturing processes can affect noise levels. Inconsistent or low-quality materials, improper heat treatment, or manufacturing defects can lead to noise generation during operation.

Surface Finish:

The surface finish of the rolling elements and raceways can impact noise. Rough surfaces can generate more noise due to increased friction and potential irregularities.

Sealing and Shielding:

Seals and shields that protect bearings can influence noise levels. While they are necessary for contamination prevention, they can also cause additional friction and generate noise.

Operating Conditions:

External factors such as temperature, speed, and load can influence noise levels. High speeds or heavy loads can amplify noise due to increased stress on the bearing components.

Wear and Deterioration:

As ball bearings wear over time, noise levels can increase. Worn components or inadequate lubrication can lead to more significant noise issues as the bearing operates.

To address these challenges and reduce noise in ball bearings, manufacturers and engineers employ various techniques, such as optimizing design, selecting suitable bearing types, using proper lubrication, maintaining accurate preload settings, and ensuring high-quality materials and manufacturing processes. Noise reduction efforts are essential to improve overall product quality, meet noise regulations, and enhance user experience in various applications.

ball bearing

How do Miniature Ball Bearings Differ from Standard-sized Ones, and Where are They Commonly Used?

Miniature ball bearings, as the name suggests, are smaller in size compared to standard-sized ball bearings. They have distinct characteristics and are designed to meet the unique requirements of applications that demand compactness, precision, and efficient rotation in confined spaces. Here’s how miniature ball bearings differ from standard-sized ones and where they are commonly used:

Size:

The most noticeable difference is their size. Miniature ball bearings typically have outer diameters ranging from a few millimeters to around 30 millimeters, while standard-sized ball bearings have larger dimensions suitable for heavier loads and higher speeds.

Load Capacity:

Due to their smaller size, miniature ball bearings have lower load-carrying capacities compared to standard-sized bearings. They are designed for light to moderate loads and are often used in applications where precision and compactness are prioritized over heavy load support.

Precision:

Miniature ball bearings are known for their high precision and accuracy. They are manufactured to tighter tolerances, making them suitable for applications requiring precise motion control and low levels of vibration.

Speed:

Miniature ball bearings can achieve higher speeds than standard-sized bearings due to their smaller size and lower mass. This makes them ideal for applications involving high-speed rotation.

Friction and Efficiency:

Miniature ball bearings generally have lower friction due to their smaller contact area. This contributes to higher efficiency and reduced heat generation in applications that require smooth and efficient motion.

Applications:

Miniature ball bearings find applications in various industries and sectors:

Electronics and Consumer Devices:

They are used in small motors, computer disk drives, printers, and miniature fans, where space is limited but precise motion is essential.

Medical and Dental Equipment:

Miniature bearings are used in medical devices such as surgical instruments, dental handpieces, and diagnostic equipment due to their precision and compactness.

Robotics and Automation:

Miniature ball bearings are integral to robotic arms, miniature conveyors, and automation systems, enabling precise movement in confined spaces.

Aerospace and Defense:

They are used in applications like UAVs (drones), aerospace actuators, and satellite components where size and weight constraints are critical.

Optics and Instrumentation:

Miniature bearings play a role in optical instruments, cameras, and measuring devices, providing smooth rotation and accurate positioning.

Overall, miniature ball bearings are specialized components designed for applications where space, precision, and efficient rotation are paramount. Their compactness and high precision make them crucial in various industries requiring reliable motion control in limited spaces.

ball bearing

What are the Primary Benefits of Using Ball Bearings in Machinery and Equipment?

Ball bearings offer several primary benefits when used in machinery and equipment. Their design and functionality provide advantages that contribute to the efficient and reliable operation of various applications. Here are the key benefits:

Reduced Friction:

One of the primary benefits of ball bearings is their ability to minimize friction between moving parts. The rolling motion of the balls reduces the contact area and sliding friction, leading to smoother operation and less energy loss due to frictional heating.

Efficient Load Support:

Ball bearings are engineered to support both radial and axial loads, making them versatile for applications with multidirectional forces. This load-bearing capability allows machinery to handle different types of loads while maintaining performance and stability.

Smooth Rotation:

Ball bearings enable smooth and precise rotational movement. The rolling motion of the balls provides consistent motion with minimal resistance, ensuring that machinery operates smoothly and without jerks.

High-Speed Capability:

Due to their low friction and efficient rolling action, ball bearings are suitable for high-speed applications. They allow machinery and equipment to achieve and maintain high rotational speeds without excessive wear or heat buildup.

Reduced Wear and Maintenance:

The reduced friction in ball bearings leads to lower wear on components. This results in longer service intervals and reduced maintenance requirements, saving both time and maintenance costs.

Energy Efficiency:

By minimizing friction and reducing energy losses, ball bearings contribute to the overall energy efficiency of machinery. This is particularly important in applications where energy consumption is a concern.

Versatility:

Ball bearings come in various types, sizes, and configurations, allowing them to be used in a wide range of machinery and equipment. They can be customized to suit specific application requirements.

Reliability and Longevity:

Ball bearings are designed to withstand heavy loads and harsh operating conditions. Their durability and resistance to wear ensure reliable performance and an extended operational life.

Quiet Operation:

Ball bearings contribute to quiet machinery operation due to the smooth rolling motion of the balls. This is particularly important in applications where noise reduction is a consideration.

In summary, the primary benefits of using ball bearings in machinery and equipment include reduced friction, efficient load support, smooth rotation, high-speed capability, reduced wear and maintenance, energy efficiency, versatility, reliability, and quiet operation. These benefits collectively enhance the performance and longevity of machinery across various industries.

China OEM Motor parts engine spare ball bearing 6012 2Z C3 deep groove ball bearing
editor by CX 2024-04-24

China high quality Bearings 6201 6202 6203 Deep Groove Ball Bearing P6 Precision with Great quality

Product Description

Deep groove ball bearings are the most representative of rolling bearings, with simple structure, They are easy to use and versatile .
Such bearings are non-separabal bearings,the inner and outer rings are rolled into a ditch arc type. They can bear radial load and axial load,with low coefficient of friction,high limiting speed .They are suitable for high-spped,low noise ,low vibration cccasions.
Deep groove balll bearings are widely used in auto-mobiles,machinetools,motors,instrumentation,construction machinery,railway vehicles,agricultural machinery and various equipment in machinery industry.

Product Parameters

Eaaring No	Di d	mension D	(mm) B	Mass(kg)	Bearing No	DI d	mension D	(mm) B	Mass(kg)
604	4	12	4.0		6212	60	110	22	0.780
606	6	17	17.0		6213	65	120	23	0.990
608		22	7.0	0.0080	8214	70	125	24	1.050
623	3	10	4.0	0.571	6215	75	130	25	1.200
625	5	16	5.0	0.0050	6216	80	140	26	1.400
634	4	16	5.0	0.0050	6217	85	150	28	1.800
635	5	19	6.0	0.0080	6218	90	160	30	2.150
680	9	22	7.0		6219	95	170	32	2.600
618/3	3	7	2.0	0.0003	6220	100	100	34	3.150
618/4	4	9	2.5	0.0006	6221	105	190	36	00
618/5	5	11	3.0	0.0120	6222	10	200	38	4.350
6000	10	26	8.0	0.0190	6300	10	35	11	0.053
6001	12	20	8.0	0.5710	6301	12	37	12	0.060
6002	15	32	9.0	0.0300	6302	15	42	13	0.082
6003	17	35	10.0	0.0390	6303	17	47	14	0.120
6004	20	42	120	0.0690	6304	20	52	15	0.140
6005	25	47	12.0	0.0800	6205	25	62	17	0.230
6006	30	55	13.0	0.1200	6306	30	72	19	0.3680
6007	35	62	14.0	0.1600	6207	35	80	21	0.460
6008	40	68	15.0	0.1900	6309	40	90	23	0.630
6009	45	75	16.0	0.2500	6309	45	100	25	0.830
6571	50	80	16.0	0.2600	6310	50	110	27	1.050
6011	55	90	18.0	0.3000	6311	55	120	29	1.350
6012	0	96	18.0	0.4200	6312	60	130	31	1.700
6013	65	100	18.0	0.4400	6313	65	140	33	2.100
6014	70	110	20.0	0.6000	6314	70	150	35	2.500
6015	75	115	20.0	0.6400	6315	75	160	37	3.000
6016	80	120	22.0	0.8500	6316	80	170	39	3.600
6017	85	130	22.0	0.8900	6217	85	180	41	4.260
6018	90	140	24.0	1.1500	6318	90	190	43	4.900
6019	95	145	24.0	1.2000	6319	95	200	45	5.650
6571	100	150	24.0	1.2500	6320	100	215	47	7.000
6571	105	160	26.0	16,000	6401	12	42	13	0.048
6571	110	170	28.0	1.9500	6402	15	52	15	0.137
6200	10	30	9.0	0.0320	6403	17	62	17	0.271
850	12	32	10.0	0.571	6404	20	72	19	0.408
6202	15	35	11.0	0.0450	6405	25	80	21	0.528
6203	17	40	12.0	0.0650	6406	30	90	23	0.720
6204	20	47	14.0	0.1100	6407	35	100	25	0.936
6205	25	52	15.0	0.1300	6408	40	110	27	1.200
6206	30	62	16.0	0.2000	6409	45	120	28	1.550
6207	35	72	17.0	0.2900	6410	50	130	31	1.910
6208	40	80	18.0	0.3700	6411	55	140	33	2.320
6209	45	85	19.0	0.4100	6412	60	150	35	2.790
6210	0	90	20.0	0.4600	6413	65	160	37	3.360
6211	55	100	21.0	0.6100	6414	70	180	42	5.000
“Aval lable typas:apan,Z.ZZ,RS;2RS,N,ZN

Packaging & Shipping

FAQ

Q1,What kind of factory are we?

A:We are based in ZheJiang , China, selling to Southeast Asia,North America, Africa, Oceania, South America,
South Asia, and Europe.

Q2,what can you buy from us?

A:Electric Motorcycle, Electric Tricycle, Electric Balance, Electric Scooter, and Their Parts.

Q3,How can we guarantee quality?

A:We always have a pre-production sample before mass production. We always conduct a final inspection before shipment. We have
departments responsible for after-sales service.

Q4,What’s our MOQ?

A:We have no minimum order quantity (MOQ) for new customers We accept small orders to support your trial order, new designs, and
marketing development.

Q5,Why did you choose us?

A:We have been engaged early in the development, production, sales, and service of electric vehicles in China. We welcome
customers, business associations, and friends from all over the world to contact us for cooperation and mutual benefit.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Material Option 2:	Stainless Steel
Lubrication:	Grease or Oil
Aligning:	Non-Aligning Bearing
Separated:	Unseparated
Model No.:	608zz 6203 6202 2RS 6207 6005 6201 6206 6309
Load Direction:	Radial Bearing

ball bearing

What are the Challenges Associated with Noise Reduction in Ball Bearings?

Vibration:

Bearing Type and Design:

Lubrication:

Bearing Clearance and Preload:

Incorrect clearance or preload settings can lead to noise issues. Excessive clearance or inadequate preload can cause the rolling elements to impact the raceways, resulting in noise during rotation.

Material and Manufacturing Quality:

Surface Finish:

The surface finish of the rolling elements and raceways can impact noise. Rough surfaces can generate more noise due to increased friction and potential irregularities.

Sealing and Shielding:

Seals and shields that protect bearings can influence noise levels. While they are necessary for contamination prevention, they can also cause additional friction and generate noise.

Operating Conditions:

External factors such as temperature, speed, and load can influence noise levels. High speeds or heavy loads can amplify noise due to increased stress on the bearing components.

Wear and Deterioration:

As ball bearings wear over time, noise levels can increase. Worn components or inadequate lubrication can lead to more significant noise issues as the bearing operates.

ball bearing

What Precautions should be taken to Prevent Contamination of Ball Bearings in Industrial Settings?

Preventing contamination of ball bearings is essential to ensure their proper function, longevity, and overall performance in industrial settings. Contaminants such as dust, dirt, debris, and particles can significantly impact bearing operation. Here are important precautions to take to prevent contamination of ball bearings:

Effective Sealing:

Choose ball bearings with appropriate seals or shields to prevent the ingress of contaminants. Seals provide a physical barrier against dust, moisture, and particles, ensuring the bearing’s interior remains clean.

Clean Environment:

Maintain a clean working environment around the machinery and equipment. Regularly clean the surrounding areas to prevent the accumulation of dirt and debris that could enter the bearings.

Proper Handling:

Handle bearings with clean hands and use gloves if necessary. Avoid touching the bearing surfaces with bare hands, as natural skin oils can transfer contaminants onto the bearing.

Clean Tools and Equipment:

Use clean tools and equipment during installation and maintenance to prevent introducing contaminants. Ensure that tools are properly cleaned before coming into contact with the bearing components.

Contamination-Controlled Workstations:

Establish contamination-controlled workstations for bearing handling, installation, and maintenance. These areas should have proper ventilation, filtered air, and minimal exposure to external contaminants.

Proper Lubrication:

Use the correct lubricant in appropriate quantities. Lubricants help create a barrier against contaminants and reduce friction. Regularly inspect and replenish lubrication to maintain its effectiveness.

Regular Inspections:

Implement a routine inspection schedule to monitor the condition of the bearings. Look for signs of contamination, wear, and damage. Address any issues promptly to prevent further damage.

Training and Education:

Train personnel on proper handling, installation, and maintenance practices to minimize the risk of contamination. Educated employees are more likely to take precautions and prevent accidental contamination.

Environmental Controls:

In sensitive environments, such as clean rooms or medical facilities, implement strict environmental controls to minimize the presence of contaminants that could affect bearing performance.

Regular Cleaning and Maintenance:

Perform regular cleaning and maintenance of machinery and equipment to prevent the buildup of contaminants. Keep bearings protected during maintenance to prevent debris from entering during the process.

Selection of Suitable Bearings:

Choose bearings that are specifically designed for the application’s environmental conditions. Some bearings have advanced sealing options or specialized coatings that enhance contamination resistance.

By implementing these precautions, industries can significantly reduce the risk of contamination in ball bearings, ensuring smooth operation, extended bearing life, and enhanced equipment reliability.

ball bearing

How does Lubrication Impact the Performance and Lifespan of Ball Bearings?

Lubrication plays a critical role in the performance and lifespan of ball bearings. Proper lubrication ensures smooth operation, reduces friction, minimizes wear, and prevents premature failure. Here’s how lubrication impacts ball bearings:

Friction Reduction:

Lubrication creates a thin film between the rolling elements (balls) and the raceways of the bearing. This film reduces friction by separating the surfaces and preventing direct metal-to-metal contact. Reduced friction results in lower energy consumption, heat generation, and wear.

Wear Prevention:

Lubricants create a protective barrier that prevents wear and damage to the bearing’s components. Without proper lubrication, the repeated rolling and sliding of the balls against the raceways would lead to accelerated wear, surface pitting, and eventual failure.

Heat Dissipation:

Lubricants help dissipate heat generated during operation. The rolling elements and raceways can generate heat due to friction. Adequate lubrication carries away this heat, preventing overheating and maintaining stable operating temperatures.

Corrosion Resistance:

Lubrication prevents moisture and contaminants from coming into direct contact with the bearing’s surfaces. This helps protect the bearing against corrosion, rust, and the formation of debris that can compromise its performance and longevity.

Noise Reduction:

Lubricated ball bearings operate quietly because the lubricant cushions and dampens vibrations caused by the rolling motion. This noise reduction is crucial in applications where noise levels need to be minimized.

Seal Protection:

Lubricants help maintain the effectiveness of seals or shields that protect the bearing from contaminants. They create a barrier that prevents particles from entering the bearing and causing damage.

Improved Efficiency:

Properly lubricated ball bearings operate with reduced friction, leading to improved overall efficiency. This is especially important in applications where energy efficiency is a priority.

Lifespan Extension:

Effective lubrication significantly extends the lifespan of ball bearings. Bearings that are properly lubricated experience less wear, reduced fatigue, and a lower likelihood of premature failure.

Selection of Lubricant:

Choosing the right lubricant is essential. Factors such as speed, temperature, load, and environmental conditions influence the choice of lubricant type and viscosity. Some common lubricant options include grease and oil-based lubricants.

Regular Maintenance:

Regular lubrication maintenance is crucial to ensure optimal bearing performance. Bearings should be inspected and relubricated according to manufacturer recommendations and based on the application’s operating conditions.

In summary, proper lubrication is essential for the optimal performance, longevity, and reliability of ball bearings. It reduces friction, prevents wear, dissipates heat, protects against corrosion, and contributes to smooth and efficient operation in various industrial and mechanical applications.

China high quality Bearings 6201 6202 6203 Deep Groove Ball Bearing P6 Precision with Great quality
editor by CX 2024-04-24

China manufacturer Deep Groove Ball Bearings 6801 6800 6203 6204 6205 Zz 2RS C3 Auto Parts Machining Parts Industrial Ball Bearing carrier bearing

Product Description

Deep Groove Ball Bearings 6205 Zz 2RS C3 Auto Parts Machining Parts Industrial Ball Bearing
We produce all kinds of bearing sets, limit sets, widely used in agricultural machinery parts, auto parts, bearing production, construction machinery parts.

Bearing Pictures

Similar products

Company Certificates

Q:Why choose us ?
A. we are a manufacturer, we have manufactured types of bearing for over 20 years .
B. Reliable Quality Assurance System;
C. Cutting-Edge Computer-Controlled CNC Machines;
D. Bespoke Solutions from Highly Experienced Specialists;
E. Customization and OEM Available for Specific Application;
F. Extensive Inventory of Spare Parts and Accessories;
G. Well-Developed Worldwide Marketing Network;
H. Efficient After-Sale Service System

Q. what is your payment term?
A: 30% TT deposit, 70% balance T/T before shipping.

Q:Can we print our logo on your products?
A: yes, we offer OEM/ODM service, we support the customized logo, size, package,etc.

Q: Can you make chains according to my CAD drawings?
A: Yes. Besides the regular standard chains, we produce non-standard and custom-design products to meet the specific technical requirements. In reality, a sizable portion of our production capacity is assigned to make non-standard products.

Q: what is your main market?
A: North America, South America, Eastern Europe, Western Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia,

Q: Can I get samples from your factory?
A: Yes, Samples can be provided.

Q: If products have some quality problem, how would you deal with?
A: We will responsible for all the quality problems.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Contact Angle:	60°
Aligning:	Non-Aligning Bearing
Separated:	Separated

Samples:	US$ 1/Piece 1 Piece(Min.Order) \| Order Sample

Customization:	Available \| Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost: Estimated freight per unit.	about shipping cost and estimated delivery time.

Payment Method:
	Initial Payment Full Payment

Currency:	US$

Return&refunds:	You can apply for a refund up to 30 days after receipt of the products.

ball bearing

Can you Provide Examples of Industries where Ball Bearings are Crucial Components?

Ball bearings are essential components in a wide range of industries where smooth motion, load support, and precision are vital. Here are some examples of industries where ball bearings play a crucial role:

Automotive Industry:

Ball bearings are used in various automotive applications, including wheel hubs, transmissions, engines, steering systems, and suspension components. They provide reliable rotation and support in both passenger vehicles and commercial vehicles.

Aerospace Industry:

In the aerospace sector, ball bearings are found in aircraft engines, landing gear systems, control surfaces, and avionics equipment. Their ability to handle high speeds and precision is vital for aviation safety.

Industrial Machinery:

Ball bearings are integral to a wide range of industrial machinery, including pumps, compressors, conveyors, machine tools, printing presses, and textile machinery. They facilitate smooth operation and load distribution in these diverse applications.

Medical Equipment:

In medical devices and equipment, ball bearings are used in surgical instruments, imaging equipment, dental tools, and laboratory machinery. Their precision and smooth movement are crucial for accurate diagnostics and treatments.

Robotics and Automation:

Ball bearings are key components in robotic arms, automation systems, and manufacturing machinery. They enable precise movement, high-speed operation, and reliable performance in automated processes.

Renewable Energy:

Wind turbines and solar tracking systems utilize ball bearings to enable efficient rotation and tracking of the wind blades and solar panels. Ball bearings withstand the dynamic loads and environmental conditions in renewable energy applications.

Marine and Shipbuilding:

Ball bearings are used in marine applications such as ship propulsion systems, steering mechanisms, and marine pumps. They withstand the corrosive environment and provide reliable performance in maritime operations.

Heavy Equipment and Construction:

In construction machinery like excavators, bulldozers, and cranes, ball bearings support the movement of heavy loads and enable efficient operation in demanding environments.

Electronics and Consumer Appliances:

Consumer electronics like electric motors, computer hard drives, and household appliances rely on ball bearings for smooth motion and reliable operation.

Oil and Gas Industry:

In oil and gas exploration and extraction equipment, ball bearings are used in drilling rigs, pumps, and processing machinery. They handle the high loads and harsh conditions of this industry.

These examples demonstrate how ball bearings are indispensable components in various industries, contributing to the efficiency, reliability, and functionality of diverse mechanical systems and equipment.

ball bearing

What are the Differences between Deep Groove Ball Bearings and Angular Contact Ball Bearings?

Deep groove ball bearings and angular contact ball bearings are two common types of ball bearings, each designed for specific applications and load conditions. Here are the key differences between these two types of bearings:

Design and Geometry:

Deep Groove Ball Bearings:

Deep groove ball bearings have a simple design with a single row of balls that run along deep raceways in both the inner and outer rings. The rings are usually symmetrical and non-separable, resulting in a balanced load distribution.

Angular Contact Ball Bearings:

Angular contact ball bearings have a more complex design with two rows of balls, oriented at an angle to the bearing’s axis. This arrangement allows for the transmission of both radial and axial loads, making them suitable for combined loads and applications requiring high precision.

Load Carrying Capacity:

Deep Groove Ball Bearings:

Deep groove ball bearings are primarily designed to carry radial loads. They can handle axial loads in both directions, but their axial load-carrying capacity is generally lower compared to angular contact ball bearings.

Angular Contact Ball Bearings:

Angular contact ball bearings are specifically designed to handle both radial and axial loads. The contact angle between the rows of balls determines the bearings’ axial load-carrying capacity. They can handle higher axial loads and are commonly used in applications with thrust loads.

Contact Angle:

Deep Groove Ball Bearings:

Deep groove ball bearings have no defined contact angle, as the balls move in a deep groove along the raceways. They are primarily designed for radial loads.

Angular Contact Ball Bearings:

Angular contact ball bearings have a specified contact angle between the rows of balls. This contact angle allows them to carry both radial and axial loads and is crucial for their ability to handle combined loads.

Applications:

Deep Groove Ball Bearings:

Deep groove ball bearings are commonly used in applications that primarily require radial loads, such as electric motors, pumps, and conveyor systems. They are also suitable for high-speed operation.

Angular Contact Ball Bearings:

Angular contact ball bearings are used in applications where both radial and axial loads are present, such as in machine tools, automotive wheel hubs, and aerospace components. They are especially useful for applications that require precise axial positioning and handling of thrust loads.

Limitations:

Deep Groove Ball Bearings:

Deep groove ball bearings are not as suitable for handling significant axial loads and may experience skidding under certain conditions due to their deep raceways.

Angular Contact Ball Bearings:

Angular contact ball bearings can experience increased heat generation and wear at higher speeds due to the contact angle of the balls.

In summary, the design, load-carrying capacity, contact angle, and applications differ between deep groove ball bearings and angular contact ball bearings. Choosing the appropriate type depends on the specific load conditions and requirements of the application.

ball bearing

What are the Primary Benefits of Using Ball Bearings in Machinery and Equipment?

Reduced Friction:

Efficient Load Support:

Smooth Rotation:

High-Speed Capability:

Reduced Wear and Maintenance:

The reduced friction in ball bearings leads to lower wear on components. This results in longer service intervals and reduced maintenance requirements, saving both time and maintenance costs.

Energy Efficiency:

Versatility:

Ball bearings come in various types, sizes, and configurations, allowing them to be used in a wide range of machinery and equipment. They can be customized to suit specific application requirements.

Reliability and Longevity:

Ball bearings are designed to withstand heavy loads and harsh operating conditions. Their durability and resistance to wear ensure reliable performance and an extended operational life.

Quiet Operation:

Ball bearings contribute to quiet machinery operation due to the smooth rolling motion of the balls. This is particularly important in applications where noise reduction is a consideration.

China manufacturer Deep Groove Ball Bearings 6801 6800 6203 6204 6205 Zz 2RS C3 Auto Parts Machining Parts Industrial Ball Bearing carrier bearing
editor by CX 2024-04-24

China wholesaler Axial Deep Groove Ball Bearing 6203 6201 6001 6010 607 6200 6204 6205llu 625 626 6301 with Great quality

Product Description

Specifications of Bearing

SKF CZPT CZPT CZPT Taper Roller Bearing Deep Groove Ball Bearing Cylindrical Roller Bearing Spherical Roller Bearing

1.CZPT Bearing – CZPT to carry high loads

2.With carbon steel ball bearing

3.CZPT Bearing – With a high load-bearing capacity

4.More quietly than metal roller bearings

5.CZPT Ball Bearing – Low noise, stable performance and durable

6.CZPT Bearing – Able to work in sub-zero temperatures and have low rolling resistance

7.CZPT Ball Bearing – Suitable for countless applications:Sliding doors, windows and other furnitures

We offer large quantity of deep groove ball bearings every month, following is our specifications.

1) Material Used:

GCr15_China/ (AISI) 52100_American/ (Din) 100Cr6_Germany;

2) Types Specialized:

6000, 6200, 6300Series, with ZZ, 2RS, OPEN available;

3) Dimension Range:

D (ID): 3-50mm; D(OD): 10-110mm; B(Width): 4-27mm;

4) Clearance:

C2, C0, C3, C4, C5;

5) Tolerance:

ABEC1, ABEC3, ABEC5 (P0, P6, P5);

6) Vibration:

Z1V1, Z2V2, Z3V3;

7) Application:

Motorcycles, Electric Bicycles, Electric Motors (Scooters), Electric Tools, Fans, Sports Apparatus, Washing Machines, Dust Collectors,

Ventilators, Textile Machines, Running Machines (Treadmills), Household Appliances, Water Pumps, Agricultural Machines, Precision Machineries, etc.

Our products are mainly exported to Mideast, India, Pakistan, Canada, Southeast Asia, South America, Singapore, South Korea and other countries all over the world. We have reliable quality and quantity products to provide. We implement the CZPT principle and take the slogan as “the best quality, the best credit and the best service”

Brand Name: NSK, NTN, SKF, TIMKEN, KOYO, IKO, NACHI, HRB
Our company insists on the “quality first, credit first” business ideas and our product specification iswell-founded. We have a good reputation in the international market by our perfect service and sufficient supply.

Parameters of Bearing

Deep groove ball bearing vibration value clearance national standards
Bearing Designation	Size(mm)	Vibration value standard decibels (Db)					Clearance standard (um) without load
Bearing Designation	d×D×W	Z	Z1	Z2	Z3	Z4	C1	C2	C3	C4	C5
6000	10 × 26 × 8	43	42	38	33		0-7	2-13	8-23	14-29	20-37
6001	12 × 28 × 8	44	43	39	34		0-9	3-18	11-25	18-33	25-45
6002	15 × 32 × 9	45	44	40	35		0-9	3-18	11-25	18-33	25-45
6003	17 × 35 × 10	46	44	40	35		0-9	3-18	11-25	18-33	25-45
6004	20 × 42 × 12	47	45	41	36		0-10	5-20	13-28	20-36	28-48
6005	25 × 47 × 12	48	46	42	38		1-11	5-20	13-28	23-41	30-53
6006	30 × 55 × 13	49	47	43	39		1-11	5-20	13-28	23-41	30-53
6007	35 × 52 × 17	51	49	45	41		1-11	6-23	15-33	28-46	40-64
6008	40 × 68 × 15	53	51	45	42		1-11	6-23	15-33	28-46	40-64
6009	45 × 75 × 16	55	53	48	45		1-11	6-23	18-36	30-51	45-73
6571	50 × 80 × 16	57	54	50	47		1-15	8-28	23-43	38-61	55-90
6011	55 × 90 × 18	59	56	52	49		1-15	8-28	23-43	38-61	55-90
6012	60 × 95 × 18	61	58	54	51		1-15	8-28	23-43	38-61	55-90
6013	65 × 100 × 18	49	48	46			1-15	8-28	23-43	38-61	55-90
6014	70 × 110 × 20	50	49	47			1-15	10-30	25-51	46-71	Oct-65
6015	75 × 115 × 20	51	50	48			1-15	10-30	25-51	46-71	Oct-65
6200	10 × 30 × 9	44	42	39	35	30	0-9	3-18	11-25	18-33	25-45
6201	12 × 32 × 10	45	43	39	35	30	0-9	3-18	11-25	18-33	25-45
6202	15 × 35 × 11	46	44	41	36	31	0-9	3-18	11-25	18-33	25-45
6203	17 × 40 × 12	47	45	41	36	31	0-9	3-18	11-25	18-33	25-45
6204	20 × 47 × 14	48	46	42	38	33	0-10	5-20	13-28	20-36	28-48
6205	25 × 52 × 15	49	47	43	40	36	0-11	5-20	13-28	23-41	30-53
6206	30 × 62 × 16	50	48	44	41	37	0-11	5-20	13-28	23-41	30-53
6207	35 × 72 × 17	52	50	46	43	39	0-11	6-23	15-33	28-46	40-64
6208	40 × 80 × 18	54	52	47	44	40	1-11	6-23	15-33	28-46	40-64
6209	45 × 85 × 19	56	54	49	46	43	1-11	6-23	18-36	30-51	45-73
6210	50 × 90 × 20	58	55	51	48	45	1-11	6-23	18-36	30-51	45-73
6211	55 × 100 × 21	60	57	53	50	47	1-15	8-28	23-43	38-61	55-90
6212	60 × 110 × 22	62	59	54	52	48	1-15	8-28	23-43	38-61	55-90
6213	65 × 120 × 23	50	49	47	42		1-15	8-28	23-43	38-61	55-90
6214	70 × 125 × 24	51	50	48	43		1-15	10-30	25-51	46-71	Oct-62
6215	75 × 130 × 25	52	51	49	44		1-15	10-30	25-51	46-71	Oct-62
6300	10 × 35 × 11	46	44	40	37	32	0-9	3-18	11-25	18-33	25-45
6301	12 × 37 × 12	47	45	40	37	32	0-9	3-18	11-25	18-33	25-45
6302	15 × 42 × 13	48	46	42	38	33	0-9	3-18	11-25	18-33	25-45
6303	17 × 47 × 14	49	47	42	38	33	0-9	3-18	11-25	18-33	25-45
6304	20 × 52 × 15	50	48	43	39	34	0-11	5-20	13-28	20-36	28-48
6305	25 × 62 × 17	51	49	44	41	37	1-11	5-20	13-28	23-41	30-53
6306	30 × 72 × 19	52	50	45	42	38	1-11	5-20	13-28	23-41	30-53
6307	35 × 80 × 21	54	52	47	44	40	1-11	6-23	15-33	28-46	40-64
6308	40 × 90 × 23	56	54	49	45	41	1-11	6-23	15-33	28-46	40-64
6309	45 × 100 × 25	58	56	51	47	44	1-11	6-23	18-36	30-51	45-73
6310	50 × 110 × 27	60	57	53	49	46	1-11	6-23	18-36	30-51	45-73
6311	55 × 120 × 29	62	59	54	51	48	1-15	8-28	23-43	38-61	55-90
6312	60 × 30 × 31	64	61	56	53	50	1-15	8-28	23-43	38-61	55-90
6313	65 × 140 × 33	51	50	48	43		1-15	8-28	23-43	38-61	55-90
6314	70 × 150 × 35	52	51	49	44		1-15	10-30	25-51	46-71	Oct-65
6315	75 × 160 × 37	53	52	50	45		1-15	10-30	25-51	46-71	Oct-65

Our Main Products

Our Company

HangZhou Flow Group Ltd is a professional manufacturer of bearings, collecting together production and processing, domestic and foreign trade. The factory specializes in the production and export of many kinds of bearings: deep groove ball bearing, spherical roller bearing, tapered roller bearing, and so on. The customized bearings is also acceptable and the production will be according to your requirements and samples.

All bearings in our factory adopt international quality standards. The complete equipment, strict quality control, advanced Japanese technology and quality service provide a guarantee to supply the high-quality bearings for our customers. Domestic sales and service network has covered 15 major cities in China, meanwhile our bearing has sold more than 60 overseas countries and regions.

Our bearings have been widely used in agriculture, textiles, mining, printing and packaging industries, in addition to applications in airports, air conditioning systems, conveyors and ship also applied.

If you are interested in any of our bearings or have an intention to order, please feel free to contact us.

FAQ

SAMPLES
1.Samples quantity: 1-10 pcs are available.
2.Free samples: It depends on the model NO., material and quantity. Some of the bearings samples need client to pay samples charge and shipping cost.
3.It’s better to start your order with Trade Assurance to get full protection for your samples order.

CUSTOMIZED
The customized LOGO or drawing is acceptable for us.

MOQ
1.MOQ: 10 pcs mix different standard bearings.
2.MOQ: 5000 pcs customized your brand bearings.

OEM POLICY
1.We can printing your brand (logo,artwork)on the shield or laser engraving your brand on the shield.
2.We can custom your packaging according to your design
3.All copyright own by clients and we promised don’t disclose any info.

SUPORT
Please visit our Clunt bearings website, we strongly encourge that you can communicate with us through email,thanks! /* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Contact Angle:	0
Aligning:	Deep Groove
Separated:	Unseparated
Rows Number:	Single
Load Direction:	Radial Bearing
Material:	Bearing Steel

Samples:	US$ 2/Piece 1 Piece(Min.Order) \| Request Sample

Customization:	Available \| Customized Request

ball bearing

Are there Specific Maintenance Practices to Ensure the Longevity of Ball Bearings?

Maintaining ball bearings is essential to ensure their longevity, reliable performance, and prevent premature failure. Proper maintenance practices can extend the lifespan of ball bearings and the equipment they are used in. Here are specific maintenance practices to consider:

Regular Lubrication:

Implement a regular lubrication schedule using the appropriate lubricant for the application. Lubrication reduces friction, prevents wear, and helps dissipate heat. Follow manufacturer guidelines for lubricant type, quantity, and frequency.

Clean Environment:

Keep the operating environment clean and free from contaminants. Dust, dirt, and debris can infiltrate bearings and cause damage. Use seals or shields to protect bearings from contaminants, especially in harsh environments.

Proper Installation:

Ensure correct installation of bearings using proper tools and techniques. Improper installation can lead to misalignment, uneven load distribution, and premature wear. Follow manufacturer recommendations for installation procedures.

Regular Inspections:

Perform routine visual inspections to check for signs of wear, damage, or contamination. Regular inspections can help identify issues early and prevent further damage. Pay attention to noise, vibration, and temperature changes.

Temperature Monitoring:

Monitor bearing temperatures during operation using infrared thermometers or sensors. Abnormal temperature increases can indicate inadequate lubrication, misalignment, or other problems.

Correct Handling:

Handle bearings with care to prevent damage during storage, transportation, and installation. Avoid dropping or subjecting them to impacts that can affect their internal components.

Bearing Removal and Replacement:

Follow proper procedures when removing and replacing bearings. Use appropriate tools and techniques to avoid damage to the bearing or the surrounding components.

Alignment Maintenance:

Maintain proper shaft and housing alignment to prevent excessive loads and wear on the bearing. Misalignment can lead to increased stress and premature failure.

Training and Education:

Provide training to operators and maintenance personnel on proper bearing maintenance and handling practices. Educated personnel are more likely to identify issues and perform maintenance correctly.

Documented Records:

Keep records of maintenance activities, inspections, lubrication schedules, and any issues encountered. This documentation helps track the bearing’s performance over time and informs future maintenance decisions.

By implementing these maintenance practices, you can ensure the longevity of ball bearings, minimize downtime, reduce operational costs, and maintain the reliability of the equipment they are a part of.

ball bearing

What are the Differences between Deep Groove Ball Bearings and Angular Contact Ball Bearings?

Design and Geometry:

Deep Groove Ball Bearings:

Angular Contact Ball Bearings:

Load Carrying Capacity:

Deep Groove Ball Bearings:

Angular Contact Ball Bearings:

Contact Angle:

Deep Groove Ball Bearings:

Deep groove ball bearings have no defined contact angle, as the balls move in a deep groove along the raceways. They are primarily designed for radial loads.

Angular Contact Ball Bearings:

Applications:

Deep Groove Ball Bearings:

Deep groove ball bearings are commonly used in applications that primarily require radial loads, such as electric motors, pumps, and conveyor systems. They are also suitable for high-speed operation.

Angular Contact Ball Bearings:

Limitations:

Deep Groove Ball Bearings:

Deep groove ball bearings are not as suitable for handling significant axial loads and may experience skidding under certain conditions due to their deep raceways.

Angular Contact Ball Bearings:

Angular contact ball bearings can experience increased heat generation and wear at higher speeds due to the contact angle of the balls.

ball bearing

What Factors should be Considered when Selecting a Ball Bearing for a Particular Application?

Selecting the right ball bearing for a specific application involves careful consideration of various factors to ensure optimal performance, longevity, and reliability. Here are the key factors that should be taken into account:

Load Type and Magnitude:

Determine the type of load (radial, axial, or combined) and the magnitude of the load that the bearing will need to support. Choose a bearing with the appropriate load-carrying capacity to ensure reliable operation.

Speed and Operating Conditions:

Consider the rotational speed of the application and the operating conditions, such as temperature, humidity, and exposure to contaminants. Different bearing types and materials are suited for varying speeds and environments.

Accuracy and Precision:

For applications requiring high accuracy and precision, such as machine tool spindles or optical instruments, choose high-precision bearings that can maintain tight tolerances and minimize runout.

Space Limitations:

If the application has limited space, choose miniature or compact ball bearings that can fit within the available dimensions without compromising performance.

Thrust and Radial Loads:

Determine whether the application requires predominantly thrust or radial load support. Choose the appropriate type of ball bearing (thrust, radial, or angular contact) based on the primary load direction.

Alignment and Misalignment:

If the application experiences misalignment between the shaft and housing, consider self-aligning ball bearings that can accommodate angular misalignment.

Mounting and Installation:

Consider the ease of mounting and dismounting the bearing. Some applications may benefit from features like flanges or snap rings for secure installation.

Lubrication and Maintenance:

Choose a bearing with appropriate lubrication options based on the application’s speed and temperature range. Consider whether seals or shields are necessary to protect the bearing from contaminants.

Environmental Conditions:

Factor in the operating environment, including exposure to corrosive substances, chemicals, water, or dust. Choose materials and coatings that can withstand the specific environmental challenges.

Bearing Material:

Select a bearing material that suits the application’s requirements. Common materials include stainless steel for corrosion resistance and high-carbon chrome steel for general applications.

Bearing Arrangement:

Consider whether a single-row, double-row, or multiple bearings in a specific arrangement are needed to accommodate the loads and moments present in the application.

By carefully evaluating these factors, engineers and designers can choose the most suitable ball bearing that aligns with the specific demands of the application, ensuring optimal performance, durability, and overall operational efficiency.

China wholesaler Axial Deep Groove Ball Bearing 6203 6201 6001 6010 607 6200 6204 6205llu 625 626 6301 with Great quality
editor by CX 2024-04-23

China manufacturer High Precision Four Point Contact Ball Type Slewing Ring Bearing double row ball bearing

Product Description

Materia		Carbon Steel , Alloy Steel
Standard		ASTM DIN . EN GOST JIS ETC
Structure		Forging , Casting and Welding
Module of Gear		8-120
Gear Grinding		MAX Module 24
Diameter of Gear Wheel :		MAX 13 000 mm
Diameter of Spiral Gear :		MAX . 2 200 mm
Length of Gear Shaft :		MAX 5 000 mm
OEM Service Offered		According to Customer Drawings
Segments Gear Offered :		According to Customer Requests
Heat Treatment		Q & T Case Hardening

FAQ

1. Are you a businessman or a manufacturer?

We are an enterprise integrating industry and trade, and our factory is located in ZheJiang Province.

2. What are the terms of payment?

We usually accept T/T or L/C.Other terms are negotiable.

3. What is your minimum order quantity?

It depends on what you buy.Under normal circumstances, our minimum order quantity is 1 piece.

4. What’s your delivery time?

Our lead time is only 3-7 days if stock is available.If it is our standard type, the delivery time is about 25 days, if it is not standard type, the delivery time is 45~50 days.

5. What about quality control?

We have a perfect quality management system to produce perfect products.Responsible for the careful testing of product quality and specifications, monitoring each production process until packaging is completed to ensure product safety into the container.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Standard or Nonstandard:	Nonstandard
Feature:	Corrosion-Resistant
Sealing Gland:	Non-Seal
Rolling-Element Number:	Multiple-Column
Roller Type:	Deep Groove Raceway
Material:	Alloy

Samples:	US$ 5000/Piece 1 Piece(Min.Order) \| Request Sample

Customization:	Available \| Customized Request

ball bearing

Can you Provide Examples of Industries where Ball Bearings are Crucial Components?

Automotive Industry:

Aerospace Industry:

Industrial Machinery:

Medical Equipment:

Robotics and Automation:

Ball bearings are key components in robotic arms, automation systems, and manufacturing machinery. They enable precise movement, high-speed operation, and reliable performance in automated processes.

Renewable Energy:

Marine and Shipbuilding:

Heavy Equipment and Construction:

In construction machinery like excavators, bulldozers, and cranes, ball bearings support the movement of heavy loads and enable efficient operation in demanding environments.

Electronics and Consumer Appliances:

Consumer electronics like electric motors, computer hard drives, and household appliances rely on ball bearings for smooth motion and reliable operation.

Oil and Gas Industry:

In oil and gas exploration and extraction equipment, ball bearings are used in drilling rigs, pumps, and processing machinery. They handle the high loads and harsh conditions of this industry.

ball bearing

How do Temperature and Environmental Conditions Affect the Performance of Ball Bearings?

Temperature and environmental conditions have a significant impact on the performance and longevity of ball bearings. The operating environment can influence factors such as lubrication effectiveness, material properties, and overall bearing behavior. Here’s how temperature and environmental conditions affect ball bearing performance:

Lubrication:

Temperature variations can affect the viscosity and flow characteristics of lubricants. Extreme temperatures can cause lubricants to become too thin or too thick, leading to inadequate lubrication and increased friction. In high-temperature environments, lubricants can degrade, reducing their effectiveness.

Material Properties:

Temperature changes can alter the material properties of the bearing components. High temperatures can lead to thermal expansion, affecting bearing clearances and potentially causing interference between components. Extreme cold temperatures can make materials more brittle and prone to fracture.

Clearance Changes:

Temperature fluctuations can cause changes in the internal clearance of ball bearings. For instance, at high temperatures, materials expand, leading to increased clearance. This can affect bearing performance, load distribution, and overall stability.

Corrosion and Contamination:

Harsh environmental conditions, such as exposure to moisture, chemicals, or abrasive particles, can lead to corrosion and contamination of bearing components. Corrosion weakens the material, while contamination accelerates wear and reduces bearing life.

Thermal Stress:

Rapid temperature changes can result in thermal stress within the bearing components. Differential expansion and contraction between the inner and outer rings can lead to stress and distortion, affecting precision and bearing integrity.

Noise and Vibration:

Temperature-related changes in material properties and internal clearances can influence noise and vibration levels. Extreme temperatures can lead to increased noise generation and vibration, affecting the overall operation of machinery.

Lubricant Degradation:

Environmental factors like humidity, dust, and contaminants can lead to premature lubricant degradation. Oxidation, moisture absorption, and the presence of foreign particles can compromise the lubricant’s performance and contribute to increased friction and wear.

Seal Effectiveness:

Seals and shields that protect bearings from contaminants can be affected by temperature fluctuations. Extreme temperatures can lead to seal hardening, cracking, or deformation, compromising their effectiveness in preventing contamination.

Choosing Appropriate Bearings:

When selecting ball bearings for specific applications, engineers must consider the expected temperature and environmental conditions. High-temperature bearings, bearings with specialized coatings, and those with enhanced sealing mechanisms may be necessary to ensure reliable performance.

Overall, understanding the impact of temperature and environmental conditions on ball bearing performance is crucial for proper bearing selection, maintenance, and ensuring optimal operation in diverse industries and applications.

ball bearing

Can you Explain the Various Types of Ball Bearings and their Specific Use Cases?

Ball bearings come in various types, each designed to meet specific application requirements. Here’s an overview of the different types of ball bearings and their specific use cases:

Deep Groove Ball Bearings:

Deep groove ball bearings are the most common and versatile type. They have a deep raceway that allows them to handle both radial and axial loads. They are used in a wide range of applications, including electric motors, household appliances, automotive components, and industrial machinery.

Angular Contact Ball Bearings:

Angular contact ball bearings have a contact angle that enables them to handle both radial and axial loads at specific angles. They are suitable for applications where combined loads or thrust loads need to be supported, such as in machine tool spindles, pumps, and agricultural equipment.

Self-Aligning Ball Bearings:

Self-aligning ball bearings have two rows of balls and are designed to accommodate misalignment between the shaft and the housing. They are used in applications where shaft deflection or misalignment is common, such as conveyor systems, textile machinery, and paper mills.

Thrust Ball Bearings:

Thrust ball bearings are designed to support axial loads in one direction. They are commonly used in applications where axial loads need to be supported, such as in automotive transmissions, steering systems, and crane hooks.

Single-Row vs. Double-Row Bearings:

Single-row ball bearings have a single set of balls and are suitable for moderate load and speed applications. Double-row ball bearings have two sets of balls and offer higher load-carrying capacity. Double-row designs are used in applications such as machine tool spindles and printing presses.

Miniature and Instrument Ball Bearings:

Miniature ball bearings are smaller in size and are used in applications with limited space and lower load requirements. They are commonly used in small electric motors, medical devices, and precision instruments.

Max-Type and Conrad Bearings:

Max-type ball bearings have a larger number of balls to increase load-carrying capacity. Conrad bearings have fewer balls and are used in applications with moderate loads and speeds.

High-Precision Ball Bearings:

High-precision ball bearings are designed for applications where accuracy and precision are critical, such as machine tool spindles, aerospace components, and optical instruments.

High-Speed Ball Bearings:

High-speed ball bearings are engineered to minimize friction and accommodate rapid rotation. They are used in applications such as dental handpieces, turbochargers, and centrifuges.

In summary, the various types of ball bearings are tailored to different application requirements, including load type, direction, speed, and environmental conditions. Selecting the appropriate type of ball bearing ensures optimal performance and longevity in specific applications.

China manufacturer High Precision Four Point Contact Ball Type Slewing Ring Bearing double row ball bearing
editor by CX 2024-04-23

China factory High Quality C00013884 Gearbox Bearings Ball Bearings for CZPT V80 G10 wheel bearing

Product Description

High quality C00013884 Gearbox bearings ball bearings for Maxus V80 G10

Product Name	Gearbox bearings ball bearings
Part Number	C00013884
Vehicle Model	Maxus V80 G10
Package	Carton/Wodden/Customized
MOQ	50 pcs
Shipping Port	HangZhou/ZheJiang /HangZhou/HangZhou
Package	Neutral Packing / Customization

Detailed Photos

NO.	Part number	Part name	Application
1	C05713	Half Axle Drive Shaft	Maxus T60
2	C00061454/C00061468	Shock Absorber	Maxus T60
3	C00076571/C00076571	Brake pad	SAIC MAXUS T60 D90
4	C00014634	Oil Filter	SAIC MAXUS T60 V80
5	C00068668	Fuel Filter	MAXUS T60
6	C057121	Air filter	SAIC MAXUS T60
7	C00006481	Alternator	SAIC MAXUS V80
8	C00000001 C00000002	Head Lamp	Maxus V80 Car
9	C00014714	Engine Connecting Rod	Maxus V80 G10 T60
10	C00113585	Radiator	Maxus T60 D90
11	C00016197	Exhaust Gas Recirculation Valve	Maxus V80 G10 T60
12	C00014535	Cylinder Head Gasket	Maxus V80 G10 T60
13	C0571912	Fuel Injector Nozzle	Maxus V80 G10 T60 D90
14	C C00014713 C00016146	Piston ring kit	Maxus V80 G10 T60
15	S00001291 C00016154	turbocharger	Maxus V80 G10 T60
16	C00066571 C00001302	Clutch Kit set	Maxus V80 G10 T60 D90
17	C00013884	Conical bearing	Maxus V80 G10
18	C05716 C0057116	Control Arm	LDV T60 MAXUS T60

Our Advantages

1. As the supplier of auto parts, we have certain R&D strength and technical reserves, customized product for you.
2. We supply many kinds of Auto spare parts, can provide more competitive products and prices.
3. We do the business for many years.we have won the recognition and trust of consumers.
4. Having cooperative relationships with many large parts factories, We can do better to meet your needs and provide excellent services.

Packaging & Shipping

Payment&Delivery

Company Profile

FAQ

Q1: What’s the price?
A1: The price is negotiable. It can be changed according to your quantity or package. When you are making an inquiry, please let us know the quantity you want.

Q2: How can I get a sample before placing an order?
A2: We can provide you a sample, you need to pay the goods and air freight to us.

Q3: What’s the MOQ?
A3: The minimum order quantity of each item is different, if the MOQ does not meet your requirement, please email me, or chat with me.

Q4: Can you customize it?
A4: Welcome, you can send your own design of automotive product and logo, we can open new mold and print or emboss any logo for yours.

Q5: Will you provide a warranty?
A5: Yes, we are very confident in our products, and we pack them very well, so usually you will receive your order in good condition. But due to the long time shipment, there will be little damage to products. Any quality issue, we will deal with it immediately.

Q6: How to pay?
A6: We support multiple payment methods, if you have any questions, pls contact me.

Q7: How to confirm a spare part ?
A7: Usually, we confirm a spare part according to following details:
(1) Applied model and brand.
(2) Model Part number.
(3) Photos of a spare part.

If you have any questions, please don’t hesitate to contact us. We are always ready to offer you help to build friendly cooperation with you!

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service:	12m
Warranty:	12m
Type:	Gearbox Bearings

Samples:	US$ 20/Piece 1 Piece(Min.Order) \| Order Sample Standard size

Customization:	Available \| Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost: Estimated freight per unit.	about shipping cost and estimated delivery time.

Payment Method:
	Initial Payment Full Payment

Currency:	US$

Return&refunds:	You can apply for a refund up to 30 days after receipt of the products.

ball bearing

How does Preload Affect the Performance and Efficiency of Ball Bearings?

Preload is a crucial factor in ball bearing design that significantly impacts the performance, efficiency, and overall behavior of the bearings in various applications. Preload refers to the intentional axial force applied to the bearing’s rolling elements before it is mounted. This force eliminates internal clearance and creates contact between the rolling elements and the raceways. Here’s how preload affects ball bearing performance:

Reduction of Internal Clearance:

Applying preload reduces the internal clearance between the rolling elements and the raceways. This eliminates play within the bearing, ensuring that the rolling elements are in constant contact with the raceways. This reduced internal clearance enhances precision and reduces vibrations during operation.

Increased Stiffness:

Preloaded bearings are stiffer due to the elimination of internal clearance. This increased stiffness improves the bearing’s ability to handle axial and radial loads with higher accuracy and minimal deflection.

Minimized Axial Play:

Preload minimizes or eliminates axial play within the bearing. This is especially important in applications where axial movement needs to be minimized, such as machine tool spindles and precision instruments.

Enhanced Rigidity:

The stiffness resulting from preload enhances the bearing’s rigidity, making it less susceptible to deformation under load. This is critical for maintaining precision and accuracy in applications that require minimal deflection.

Reduction in Ball Slippage:

Preload reduces the likelihood of ball slippage within the bearing, ensuring consistent contact between the rolling elements and the raceways. This leads to improved efficiency and better load distribution.

Improved Running Accuracy:

Preloading enhances the running accuracy of the bearing, ensuring that it maintains precise rotational characteristics even under varying loads and speeds. This is essential for applications requiring high accuracy and repeatability.

Optimized Performance at High Speeds:

Preload helps prevent skidding and slipping of the rolling elements during high-speed operation. This ensures that the bearing remains stable, reducing the risk of noise, vibration, and premature wear.

Impact on Friction and Heat Generation:

While preload reduces internal clearance and friction, excessive preload can lead to higher friction and increased heat generation. A balance must be struck between optimal preload and minimizing friction-related issues.

Application-Specific Considerations:

The appropriate amount of preload depends on the application’s requirements, such as load, speed, accuracy, and operating conditions. Over-preloading can lead to increased stress and premature bearing failure, while under-preloading may result in inadequate rigidity and reduced performance.

Overall, preload plays a critical role in optimizing the performance, accuracy, and efficiency of ball bearings. Engineers must carefully determine the right preload level for their specific applications to achieve the desired performance characteristics and avoid potential issues related to overloading or inadequate rigidity.

ball bearing

How do Temperature and Environmental Conditions Affect the Performance of Ball Bearings?

Lubrication:

Material Properties:

Clearance Changes:

Corrosion and Contamination:

Thermal Stress:

Noise and Vibration:

Lubricant Degradation:

Seal Effectiveness:

Choosing Appropriate Bearings:

ball bearing

What is a Ball Bearing and How does it Function in Various Applications?

A ball bearing is a type of rolling-element bearing that uses balls to reduce friction between moving parts and support radial and axial loads. It consists of an outer ring, an inner ring, a set of balls, and a cage that separates and maintains a consistent spacing between the balls. Here’s how ball bearings function in various applications:

Reduction of Friction:

Ball bearings function by replacing sliding friction with rolling friction. The smooth, spherical balls minimize the contact area between the inner and outer rings, resulting in lower friction and reduced heat generation.

Radial and Axial Load Support:

Ball bearings are designed to support both radial loads (forces perpendicular to the shaft’s axis) and axial loads (forces parallel to the shaft’s axis). The distribution of balls within the bearing ensures load-carrying capacity in multiple directions.

Smooth Rotational Movement:

Ball bearings facilitate smooth and precise rotational movement. The rolling motion of the balls allows for controlled and continuous rotation with minimal resistance.

Applications in Machinery:

Ball bearings are used in a wide range of machinery and equipment, including motors, generators, gearboxes, conveyors, and fans. They enable the efficient transfer of motion while reducing wear and energy losses.

Automotive Industry:

Ball bearings are extensively used in automobiles for various applications, including wheel hubs, transmission systems, steering mechanisms, and engine components. They provide reliability and durability in challenging automotive environments.

Industrial Machinery:

In industrial settings, ball bearings support rotating shafts and ensure the smooth operation of equipment such as pumps, compressors, and machine tools.

High-Speed Applications:

Ball bearings are suitable for high-speed applications due to their low friction and ability to accommodate rapid rotation. They are used in applications like electric motors and aerospace components.

Precision Instruments:

For precision instruments, such as watches, cameras, and medical devices, ball bearings provide accurate rotational movement and contribute to the overall performance of the instrument.

Variety of Sizes and Types:

Ball bearings come in various sizes, configurations, and materials to suit different applications. Different types include deep groove ball bearings, angular contact ball bearings, thrust ball bearings, and more.

In summary, ball bearings are essential components in a wide range of applications where smooth rotation, load support, and reduced friction are critical. Their versatility, reliability, and efficiency make them indispensable in industries spanning from automotive to industrial machinery to precision instruments.

China factory High Quality C00013884 Gearbox Bearings Ball Bearings for CZPT V80 G10 wheel bearing
editor by CX 2024-04-23

China factory Factory Direct Price Car Accessories Wheel Hub Bearing Needle Bearing Ball Bearing 57.9mm 42423-0K020 42423-71010 Tt-Ggn50 for CZPT Rulemanes drive shaft bearing

Product Description

Applicable Material	Chrome Steel/Gcr-15
Greese	SRL ,PS2, Alvania R12 ,etc
Quality control	Checking is during production process, after surface and before packing
Lead time	10-15 days for sample,15-25 days for bulk order depends on your design
Package	Standard package/ Pallet or container/ as per customized specifications
Shipment	Express & air freight is preferred / sea freight/ as per customized specifications

Quality Control

1) Incoming quality control : Checking the raw material after they reach our factory

2) Checking the details before the production line operated

3) In-process quality control : Have a full inspection and routing inspection during mass production

4) Final quality control : Checking the goods after they are finished

5) Outgoing quality control : Checking the goods after they are finished

More products

Wheel Bearing	Dimensions(mm)				Mass	Hub Assembly	Clutch Bearing	Truck Bearng	Taper roller bearing	Wheel bearing kit	Wheel Bearing
	d	D	B	C
DAC2552Z NISMO V6 3.7L 3696CC VQ37VHR Z TOURING V6 3.7L 3696CC VQ37VHR 2/SP5		REAR
229	28473-FG	LIBERTY IV [2	B9 TRIBECA BASE MODEL H6 3.0L 3	XV 13-/xv 13/	REAR
234	24873-AJ00A 28473-SC000 28473-FJ000 28473-FG000 VKBA7479	FORESTER (SH) [2008-]IMPREZA Hatchback (GR, GH, G3) [2007-2014]LEGACY V (BM) [2009-]LEGACY V Estate (BR) [2008-2014]OUTBACK (BR) [2009-]

Company Profile

Rainbow auto parts focuses on the production and sales of auto parts. Our auto parts have been exported to all over the world and have won praise from customers.

We will strictly check the product production process:

Checking the raw material after they reach our factory
Checking the details before the production line operated
Have a full inspection and routing inspection during mass production
Checking the goods after they are finished

Packaging & Shipping

ORIGINAL PACKING/ NEUTRAL PACKING/ PACKAGING AS CUSTOMER REQUIRE

FAQ

Q1: What is the MOQ?
A: It depends on what you are buying. Small MOQ can be acceptable.

Q2:Can you customize my products?
A: Yes, we can customize products with your design drawings.

Q3:What is your terms of payment?
A: 30% T/T in advance, balance before shipment, or as per discussion.

Q4:What is your terms of packing?
A: Generally,we use brown boxes for packing. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Q5:How about your delivery time?
A: If the product is in stock, the delivery time is 1 week after payment. If there is no stock, the delivery time is 30 days.

Q6:Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.

Q7:What can I do if the item damaged during transportation?
A: Our customer service staffs will help you with any questions or concerns. Under any circumstance, we will pack products well before shipping. So if any damage on products, please take pictures for us. We will figure out a solve way.

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service:	Full After Sale Service
Warranty:	30000-50000 Km
Type:	Wheel Bearing

Samples:	US$ 9/Piece 1 Piece(Min.Order) \| Order Sample

Customization:	Available \| Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost: Estimated freight per unit.	about shipping cost and estimated delivery time.

Payment Method:
	Initial Payment Full Payment

Currency:	US$

Return&refunds:	You can apply for a refund up to 30 days after receipt of the products.

ball bearing

Are there Specific Maintenance Practices to Ensure the Longevity of Ball Bearings?

Regular Lubrication:

Clean Environment:

Proper Installation:

Regular Inspections:

Temperature Monitoring:

Monitor bearing temperatures during operation using infrared thermometers or sensors. Abnormal temperature increases can indicate inadequate lubrication, misalignment, or other problems.

Correct Handling:

Handle bearings with care to prevent damage during storage, transportation, and installation. Avoid dropping or subjecting them to impacts that can affect their internal components.

Bearing Removal and Replacement:

Follow proper procedures when removing and replacing bearings. Use appropriate tools and techniques to avoid damage to the bearing or the surrounding components.

Alignment Maintenance:

Maintain proper shaft and housing alignment to prevent excessive loads and wear on the bearing. Misalignment can lead to increased stress and premature failure.

Training and Education:

Provide training to operators and maintenance personnel on proper bearing maintenance and handling practices. Educated personnel are more likely to identify issues and perform maintenance correctly.

Documented Records:

ball bearing

Are there any Industry Standards or Certifications that Ball Bearings should Meet?

Yes, there are several industry standards and certifications that ball bearings should meet to ensure their quality, performance, and reliability. These standards help manufacturers, engineers, and customers assess the suitability of bearings for specific applications. Some of the key standards and certifications for ball bearings include:

ISO Standards:

The International Organization for Standardization (ISO) has developed a series of standards related to ball bearings. ISO 15 defines dimensions, boundary dimensions, and tolerances for radial bearings. ISO 281 specifies dynamic load ratings and calculation methods for bearings’ life calculations.

ABEC (Annular Bearing Engineering Committee) Ratings:

ABEC ratings are commonly used in North America to indicate the precision and performance of ball bearings. Ratings range from ABEC 1 (lowest precision) to ABEC 9 (highest precision). However, it’s important to note that ABEC ratings focus primarily on dimensional tolerances and do not encompass all aspects of bearing quality.

DIN Standards:

The German Institute for Standardization (Deutsches Institut für Normung, DIN) has published various standards related to ball bearings. DIN 625 covers dimensions for deep groove ball bearings, while DIN 616 provides guidelines for precision angular contact ball bearings.

JIS (Japanese Industrial Standards):

JIS standards are used in Japan and internationally to define the characteristics and dimensions of various products, including ball bearings. JIS B 1512 outlines the classification and dimensions of rolling bearings.

ASTM (American Society for Testing and Materials) Standards:

ASTM has standards that cover various aspects of bearing testing, performance, and materials. ASTM F2215, for instance, specifies the requirements for ball bearings used in surgical implants.

CE Marking:

CE marking indicates that a product complies with European Union health, safety, and environmental requirements. It may be required for bearings used in machinery intended to be sold within the EU market.

Industry-Specific Standards:

Various industries, such as aerospace, automotive, medical, and nuclear, have specific standards or certifications that bearings must meet to ensure safety, reliability, and compliance with industry-specific requirements.

Quality Management Systems:

Manufacturers that adhere to quality management systems, such as ISO 9001, demonstrate their commitment to consistent product quality and customer satisfaction. Certification to these systems indicates that the manufacturing process follows established protocols and best practices.

When selecting ball bearings, it’s important to consider the relevant standards and certifications that align with the application’s requirements. This ensures that the bearings meet recognized quality and performance criteria, ultimately contributing to reliable and efficient operation.

ball bearing

How does Lubrication Impact the Performance and Lifespan of Ball Bearings?

Friction Reduction:

Wear Prevention:

Heat Dissipation:

Corrosion Resistance:

Noise Reduction:

Seal Protection:

Lubricants help maintain the effectiveness of seals or shields that protect the bearing from contaminants. They create a barrier that prevents particles from entering the bearing and causing damage.

Improved Efficiency:

Properly lubricated ball bearings operate with reduced friction, leading to improved overall efficiency. This is especially important in applications where energy efficiency is a priority.

Lifespan Extension:

Effective lubrication significantly extends the lifespan of ball bearings. Bearings that are properly lubricated experience less wear, reduced fatigue, and a lower likelihood of premature failure.

Selection of Lubricant:

Regular Maintenance:

China factory Factory Direct Price Car Accessories Wheel Hub Bearing Needle Bearing Ball Bearing 57.9mm 42423-0K020 42423-71010 Tt-Ggn50 for CZPT Rulemanes drive shaft bearing
editor by CX 2024-04-23

China factory Bridge Basin Rubber Bearing Gpz Corridor Sliding Ball Steel Grid Bearing Plate Building Isolation Rubber Bearing bearing assembly

Product Description

item	value
Place of Origin	China
	ZheJiang
Brand Name	XIHU (WEST LAKE) DIS.
Processing Service	Moulding, Cutting
Material	Rubber + steel plate
Product name	High Damping Seismic Isolation Rubber Bearing
Color	Customer’s Request
Application	Bridge,building
Size	Accpet Customers’ Designs
Certification	ISO9001
MOQ	10 Pcs
Quality	High-Quality
Temperature	-40 C~+120 C’
Feature	Durable

Professional production and sales:
plate rubber bearing, basin bearing, ball bearing grid steel structure bearing, isolation bearing, bridge expansion joint and other bridge engineering materials

HangZhou Xihu (West Lake) Dis. Engineering Rubber Co., LTD. (formerly HangZhou Hudong Rubber Factory) was founded in 1985. Located in HangZhou Xihu (West Lake) Dis. New District, covers an area of 26400 square meters, building area of 10,000 square meters. Currently, there are 218 employees, including 56 professional and technical personnel and 30 management personnel, with registered capital of 100.01 million yuan, fixed assets of 30 million yuan, and annual output value of 80 million yuan. There are 4 workshops for expansion joints, machining, vulcanization and rubber rolling. Expansion joint workshop is equipped with equipment: various models of shot blasting drum 18 sets, electrostatic spraying machine 9 sets, semi-automatic cutting machine 12 sets, copying cutting machine 12 sets, various models of electric welding machine 100 sets, steel bar cutting machine 10 sets, bending machine 10 sets.
The annual production capacity is: bridge expansion joint more than 50,000 meters, basin type rubber bearing more than 10,000 sets, plate rubber bearing more than 500,000 pieces, rubber water stop zone more than 200,000 meters, more than 50,000 sets of grid support.

Our Advantages

Packaging & Shipping

Certifications

FAQ

1. Are you factory or trading company ? can you send sample to us and how long could it take?	We are a factory, we can mail samples, the specific time depends on the express delivery.
2. Can we have them with different performance or our own design?	Can be customized according to your drawings
3. What is your MOQ ?	The minimum order quantity is determined according to the product type
4. Can I print your logo on the carton box?	Yes
5. Do you offer customized packaging ?	Custom packaging is available
6. Any discount ?	The specific price can be discussed

/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

After-sales Service:	Online Technical Guidance
Warranty:	1-3 Years
Certification:	GB
Usage:	Beam Bridge, Highway Bridge, Railroad Bridge
Structure:	Laminated Rubber Bearing
Material:	Rubber Bearing

Customization:	Available \| Customized Request

ball bearing

Can you Provide Examples of Industries where Ball Bearings are Crucial Components?

Automotive Industry:

Aerospace Industry:

Industrial Machinery:

Medical Equipment:

Robotics and Automation:

Ball bearings are key components in robotic arms, automation systems, and manufacturing machinery. They enable precise movement, high-speed operation, and reliable performance in automated processes.

Renewable Energy:

Marine and Shipbuilding:

Heavy Equipment and Construction:

In construction machinery like excavators, bulldozers, and cranes, ball bearings support the movement of heavy loads and enable efficient operation in demanding environments.

Electronics and Consumer Appliances:

Consumer electronics like electric motors, computer hard drives, and household appliances rely on ball bearings for smooth motion and reliable operation.

Oil and Gas Industry:

In oil and gas exploration and extraction equipment, ball bearings are used in drilling rigs, pumps, and processing machinery. They handle the high loads and harsh conditions of this industry.

ball bearing

How do Ceramic Ball Bearings Compare to Traditional Steel Ball Bearings in Terms of Performance?

Ceramic ball bearings and traditional steel ball bearings have distinct characteristics that can impact their performance in various applications. Here’s a comparison of how these two types of bearings differ in terms of performance:

Material Composition:

Ceramic Ball Bearings:

Ceramic ball bearings use ceramic rolling elements, typically made from materials like silicon nitride (Si3N4) or zirconium dioxide (ZrO2). These ceramics are known for their high hardness, low density, and resistance to corrosion and wear.

Traditional Steel Ball Bearings:

Traditional steel ball bearings use steel rolling elements. The type of steel used can vary, but common materials include chrome steel (52100) and stainless steel (440C). Steel bearings are known for their durability and strength.

Friction and Heat:

Ceramic Ball Bearings:

Ceramic bearings have lower friction coefficients compared to steel bearings. This results in reduced heat generation during operation, contributing to higher efficiency and potential energy savings.

Traditional Steel Ball Bearings:

Steel bearings can generate more heat due to higher friction coefficients. This can lead to increased energy consumption in applications where efficiency is crucial.

Weight:

Ceramic Ball Bearings:

Ceramic bearings are lighter than steel bearings due to the lower density of ceramics. This weight reduction can be advantageous in applications where minimizing weight is important.

Traditional Steel Ball Bearings:

Steel bearings are heavier than ceramic bearings due to the higher density of steel. This weight may not be as critical in all applications but could impact overall equipment weight and portability.

Corrosion Resistance:

Ceramic Ball Bearings:

Ceramic bearings have excellent corrosion resistance, making them suitable for applications in corrosive environments, such as marine or chemical industries.

Traditional Steel Ball Bearings:

Steel bearings are susceptible to corrosion, especially in harsh environments. Stainless steel variants offer improved corrosion resistance but may still corrode over time.

Speed and Precision:

Ceramic Ball Bearings:

Ceramic bearings can operate at higher speeds due to their lower friction and ability to withstand higher temperatures. They are also known for their high precision and low levels of thermal expansion.

Traditional Steel Ball Bearings:

Steel bearings can operate at high speeds as well, but their heat generation may limit performance in certain applications. Precision steel bearings are also available but may have slightly different characteristics compared to ceramics.

Cost:

Ceramic Ball Bearings:

Ceramic bearings are generally more expensive to manufacture than steel bearings due to the cost of ceramic materials and the challenges in producing precision ceramic components.

Traditional Steel Ball Bearings:

Steel bearings are often more cost-effective to manufacture, making them a more economical choice for many applications.

In conclusion, ceramic ball bearings and traditional steel ball bearings offer different performance characteristics. Ceramic bearings excel in terms of low friction, heat generation, corrosion resistance, and weight reduction. Steel bearings are durable, cost-effective, and widely used in various applications. The choice between the two depends on the specific requirements of the application, such as speed, precision, corrosion resistance, and budget considerations.

ball bearing

Can you Explain the Various Types of Ball Bearings and their Specific Use Cases?

Ball bearings come in various types, each designed to meet specific application requirements. Here’s an overview of the different types of ball bearings and their specific use cases:

Deep Groove Ball Bearings:

Angular Contact Ball Bearings:

Self-Aligning Ball Bearings:

Thrust Ball Bearings:

Single-Row vs. Double-Row Bearings:

Miniature and Instrument Ball Bearings:

Max-Type and Conrad Bearings:

Max-type ball bearings have a larger number of balls to increase load-carrying capacity. Conrad bearings have fewer balls and are used in applications with moderate loads and speeds.

High-Precision Ball Bearings:

High-precision ball bearings are designed for applications where accuracy and precision are critical, such as machine tool spindles, aerospace components, and optical instruments.

High-Speed Ball Bearings:

High-speed ball bearings are engineered to minimize friction and accommodate rapid rotation. They are used in applications such as dental handpieces, turbochargers, and centrifuges.

China factory Bridge Basin Rubber Bearing Gpz Corridor Sliding Ball Steel Grid Bearing Plate Building Isolation Rubber Bearing bearing assembly
editor by CX 2024-04-23

China Professional Angular Contact Rolling Ball Bearings bearing engineering

Product Description

Angular Contact Rolling Ball Bearings

We make various kinds of ball bearing as per customer’s drawing and samples. Our ball bearing is widely applied the different industrials.
Quality comes from being controlled rather than be done. On the basis of the escalating production equipment and optimized process, CZPT spare no efforts and keeps improving for quality control. Quality assurance covered with system, technology and human resources are in full swing.
Confidence comes from strength, quality is derived from strict control and management. CZPT all along works for constant high quality products.

High carbon chrome bearing steel is a general and normally best material for bearing rings and rolling elements.
Chemical composition of bearing steel GCr 15

element content(Wt%)
C 0.95~1.05	Cr 1.4~1.65	Si 0.15~0.35	Mn 0.25~0.45	P ≤0.571	S ≤0.02
Ni <0.23	Cu ≤0.25	Mo ≤0.1	Sn <0.03	As <0.04	Ti <0.005
Sb <0.002	Pb <0.002	O <0.001	Al <0.05	Ca <0.01

Competitive advantages
1. Our ball bearing has a wide application, such as automotive industry, household appliances, power tools and etc.
2. We directly supply our ball bearing to many countries, like USA, France, Turkey, India, Brazil, Argentina, Mexico etc.
3. We have a wide range of ball bearing.
4. We could customize ball bearing for our customer.

Information needed for ball bearing inquiry
It will be better if customer could send us detailed drawing including below information.
1.Ball bearing model number
2. Ball bearing dimension
3. Ball bearing application
4. Required quantity
5. Other technical requirement.

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Contact Angle:	Customized
Aligning:	Customized
Separated:	Customized
Rows Number:	Customized
Load Direction:	Customized
Material:	Bearing Steel

ball bearing

Can you Provide Examples of Industries where Ball Bearings are Crucial Components?

Automotive Industry:

Aerospace Industry:

Industrial Machinery:

Medical Equipment:

Robotics and Automation:

Ball bearings are key components in robotic arms, automation systems, and manufacturing machinery. They enable precise movement, high-speed operation, and reliable performance in automated processes.

Renewable Energy:

Marine and Shipbuilding:

Heavy Equipment and Construction:

In construction machinery like excavators, bulldozers, and cranes, ball bearings support the movement of heavy loads and enable efficient operation in demanding environments.

Electronics and Consumer Appliances:

Consumer electronics like electric motors, computer hard drives, and household appliances rely on ball bearings for smooth motion and reliable operation.

Oil and Gas Industry:

In oil and gas exploration and extraction equipment, ball bearings are used in drilling rigs, pumps, and processing machinery. They handle the high loads and harsh conditions of this industry.

ball bearing

How do Miniature Ball Bearings Differ from Standard-sized Ones, and Where are They Commonly Used?

Size:

Load Capacity:

Precision:

Speed:

Miniature ball bearings can achieve higher speeds than standard-sized bearings due to their smaller size and lower mass. This makes them ideal for applications involving high-speed rotation.

Friction and Efficiency:

Applications:

Miniature ball bearings find applications in various industries and sectors:

Electronics and Consumer Devices:

They are used in small motors, computer disk drives, printers, and miniature fans, where space is limited but precise motion is essential.

Medical and Dental Equipment:

Miniature bearings are used in medical devices such as surgical instruments, dental handpieces, and diagnostic equipment due to their precision and compactness.

Robotics and Automation:

Miniature ball bearings are integral to robotic arms, miniature conveyors, and automation systems, enabling precise movement in confined spaces.

Aerospace and Defense:

They are used in applications like UAVs (drones), aerospace actuators, and satellite components where size and weight constraints are critical.

Optics and Instrumentation:

Miniature bearings play a role in optical instruments, cameras, and measuring devices, providing smooth rotation and accurate positioning.

ball bearing

What are the Primary Benefits of Using Ball Bearings in Machinery and Equipment?

Reduced Friction:

Efficient Load Support:

Smooth Rotation:

High-Speed Capability:

Reduced Wear and Maintenance:

The reduced friction in ball bearings leads to lower wear on components. This results in longer service intervals and reduced maintenance requirements, saving both time and maintenance costs.

Energy Efficiency:

Versatility:

Ball bearings come in various types, sizes, and configurations, allowing them to be used in a wide range of machinery and equipment. They can be customized to suit specific application requirements.

Reliability and Longevity:

Ball bearings are designed to withstand heavy loads and harsh operating conditions. Their durability and resistance to wear ensure reliable performance and an extended operational life.

Quiet Operation:

Ball bearings contribute to quiet machinery operation due to the smooth rolling motion of the balls. This is particularly important in applications where noise reduction is a consideration.

China Professional Angular Contact Rolling Ball Bearings bearing engineering
editor by CX 2024-04-23

China wholesaler NSK, NTN. Koyo,Angular Contact Ball Bearings,7348c,7348CTA,7348ceta,7348acm,B7348c,7352c,7352CTA,7352ceta,7352acm,B7352c,7356c,7356CTA,7356ceta,7356acm,B7356c, bearing engineering

Product Description

Angular contact ball bearings have inner and outer ring raceways that are displaced relative to each other in the direction of the bearing axis. This means that these bearings are designed to accommodate combined loads, i.e. simultaneously acting radial and axial loads.
The axial load carrying capacity of angular contact ball bearings increases as the contact angle increases. The contact angle is defined as the angle between the line joining the points of contact of the ball and the raceways in the radial plane, along which the combined load is transmitted from 1 raceway to another, and a line perpendicular to the bearing axis.

The most commonly used designs are:

single row angular contact ball bearings.
double row angular contact ball bearings.
four-point contact ball bearings.

Part No.	d/mm	D/mm	B/mm	Load Rating(KN)		Limited Speed(r/min)		Load Rating(KN)		Limited Speed(r/min)
				Load Rating(KN)		Limited Speed(r/min)		Load Rating(KN)		Limited Speed(r/min)
				Cr/KN	Cor/KN	Grease	Oil	Cr/KN	Cor/KN	Grease	Oil
718 serie				α=15°(C)				α=25°(AC)
71800	10	19	5	1.8	1.1	75000	120000	1.7	1.1	70000	110000
71801	12	21	5	2	1.4	70000	110000	1.9	1.3	63000	95000
71802	15	24	5	2.2	1.8	60000	90000	2.1	1.7	53000	80000
71803	17	26	5	2.3	1.9	53000	80000	2.1	1.8	50000	75000
71804	20	32	7	3.9	3.4	45000	67000	3.7	3.2	40000	60000
71805	25	37	7	4.2	4.1	38000	56000	3.9	3.9	34000	50000
71806	30	42	7	4.4	4.8	32000	48000	4.1	4.5	28000	43000
71807	35	47	7	4.6	5.5	26000	40000	4.3	5.2	24000	38000
71815	75	95	10	14.2	21.7	12000	19000	13.3	20.5	11000	18000
71816	80	100	10	14.5	23.1	11000	18000	13.6	21.8	9500	16000
71817	85	110	13	21.5	32.2	10000	17000	20.2	30.5	9000	15000
71818	90	115	13	21.7	33.5	9500	16000	20.4	31.6	8500	14000
71819	95	120	13	21.9	34.7	9000	15000	20.6	32.8	8500	14000
71820	100	125	13	22.5	37	8500	14000	21.2	34.9	8000	13000
71821	105	130	13	22.7	38.3	8500	14000	21.3	36.1	8000	13000
71822	110	140	16	31.8	51.6	8000	13000	29.9	48.7	7500	12000
71824	120	150	16	33.1	56.9	7000	11000	31.1	53.7	6700	10000
71826	130	165	18	38.7	67.6	6700	10000	36.3	63.8	6000	9000
71828	140	175	18	44.8	79.2	6000	9000	42	74.7	5600	8500
71830	150	190	20	51.2	92	5600	8500	48	86.8	5000	7500
71832	160	200	20	52.4	97.7	5000	7500	49.2	92.2	4800	7000
71834	170	215	22	66.5	123.4	4800	7000	62.4	116.5	4300	6300
71836	180	225	22	83.8	151.6	4800	7000	78.6	143	4300	6300
71838	190	240	24	100	179	4500	6700	94.4	169.2	4000	6000
71840	200	250	24	102.5	189.3	4300	6300	96.2	178.6	3800	5600
71844	220	270	24	106.4	209.3	3800	5600	99.8	197.4	3400	5000
71848	240	300	28	145	277	3400	5000	136	261	3000	4500
71852	260	320	28	148.8	299.3	3100	4600	139.6	282.3	2700	4100
71856	280	350	33	182	363.8	2800	4100	170.8	343.3	2400	3700

Part No.	d/mm	D/mm	B/mm	Load Rating(KN)		Limited Speed(r/min)		Load Rating(KN)		Limited Speed(r/min)
				Load Rating(KN)		Limited Speed(r/min)		Load Rating(KN)		Limited Speed(r/min)
				Cr/KN	Cor/KN	Grease	Oil	Cr/KN	Cor/KN	Grease	Oil
719 serie				α=15°(C)				α=25°(AC)
71907	35	55	10	11	10.9	26000	40000	10.4	10.3	20000	34000
H71907	35	55	10	7.7	5.4	36000	53000	7.4	5.1	30000	45000
H71907/HQ1	35	55	10	7.7	5.4	40000	60000	7.4	5.1	34000	50000
71908	40	62	12	14	14.2	20000	34000	13.3	13.5	18000	30000
H71908	40	62	12	9.8	7	30000	45000	9.3	6.6	26000	40000
H71908/HQ1	40	62	12	9.8	7	34000	50000	9.3	6.6	28000	43000
71909	45	68	12	14.7	16.1	18000	30000	13.9	15.2	17000	28000
H71909	45	68	12	10.3	7.7	26000	40000	9.7	7.3	22000	36000
H71909/HQ1	45	68	12	10.3	7.7	28000	43000	9.7	7.3	26000	40000
71910	50	72	12	19	21.2	17000	28000	17.9	20.1	15000	24000
H71910		72	12	13.2	10.2	22000	36000	12.5	9.5	19000	32000
H71910/HQ1	50	72	12	13.2	10.2	26000	40000	12.5	9.5	22000	36000
71911	55	80	13	23.7	27.4	15000	24000	22.4	26	14000	22000
H71911	55	80	13	16.2	12.5	19000	32000	15.2	11.8	16000	26000
H71911/HQ1	55	80	13	16.2	12.5	22000	36000	15.2	11.8	22000	36000
71912	60	85	13	24.8	30.3	14000	22000	23.3	28.7	13000	20000
H71912	60	85	13	16.5	13.8	18000	30000	15.8	13.2	15000	24000
H71912/HQ1	60	85	13	16.5	13.8	19000	32000	15.8	13.2	20000	34000
71913	65	90	13	25.1	31.9	13000	20000	23.6	30.2	12000	19000
H71913	65	90	13	16.8	14.5	17000	28000	16.2	13.8	15000	24000
H71913/HQ1	65	90	13	16.8	14.5	19000	32000	16.2	13.8	17000	28000
71914	70	100	16	34.5	43.4	12000	19000	32.6	41.2	11000	18000
H71914	70	100	16	20.8	17.8	16000	26000	19.8	16.8	13000	20000
H71914/HQ1	70	100	16	20.8	17.8	19000	32000	19.8	16.8	17000	28000
71915	75	105	16	25	45.6	11000	18000	33	43.2	95000	16000
H71915	75	105	16	21.8	19.2	15000	24000	20.5	18.2	13000	20000
H71915/HQ1	75	105	16	21.8	19.2	17000	28000	20.5	18.2	15000	24000
71916	80	110	16	35.5	47.8	10000	17000	33.5	45.3	9000	15000
H71916	80	110	16	22.5	20.8	14000	22000	21.2	19.5	12000	19000
H71916/HQ1	80	110	16	22.5	20.8	16000	26000	21.2	19.5	14000	24000
71917		120	18	46.5	61.9	9500	16000	43.8	58.6	8500	14000
H71917	85	120	18	26.2	24.2	13000	20000	24.8	22.8	11000	18000
H71917/HQ1	85	120	18	26.2	24.2	15000	24000	24.8	22.8	13000	20000
71918	90	125	18	47.2	64.8	9000	15000	44.5	61.4	8000	13000
H71918	90	125	18	27.2	26.2	13000	20000	25.5	24.5	11000	18000
H71918/HQ1	90	125	18	27.2	26.2	15000	24000	25.5	24.5	13000	20000
71919	95	130	18	47.9	67.8	9000	15000	45.2	64.1	8000	13000
H71919	95	130	18	27.2	26.8	12000	19000	25.8	25.5	11000	18000
H71919/HQ1	95	130	18	27.2	26.8	14000	22000	25.8	25.5	13000	20000
71920	100	140	20	60.4	84.4	8500	14000	56.9	79.9	8000	13000
H71920	100	140	20	40.2	37.5	11000	18000	37.8	35.5	9000	15000
H71920/HQ1	100	140	20	40.2	37.5	13000	20000	37.8	35.5	11000	18000
71921	105	145	20	61.4	88.2	8000	13000	57.8	83.5	7500	12000
H71921	105	145	20	40.8	39.2	10000	17000	38.5	36.8	8500	14000
H71921/HQ1	105	145	20	40.8	39.2	12000	19000	38.5	36.8	10000	17000
71922	110	150	20	62.3	91.9	7500	12000	58.7	87	7000	11000
H71922	110	150	20	41.2	40.5	9000	15000	39.2	38.2	7500	12000
H71922/HQ1	110	150	20	41.2	40.5	11000	18000	39.2	38.2	9500	16000
71924	120	165	22	73.7	107.6	7000	11000	69.5	101.9	6700	10000
H71924	120	165	22	43.2	44.8	8500	14000	40.5	42.5	7500	12000
H71924/HQ1	120	165	22	43.2	44.8	10000	17000	40.8	42.5	9000	15000
71926	130	180	24	76.3	117.1	6700	10000	71.9	110.9	6000	9000
H71926	130	180	24	53.2	56.5	8000	13000	50.2	53.5	7500	12000
H71926/HQ1	130	180	24	53.2	56.5	9000	15000	50.2	53.5	8000	14000
71928	140	190	24	78.9	126.4	6000	9000	74.4	119.7	5600	8500
H71928	140	190	24	53.8	59.2	7000	11000	50.8	55.8	6700	10000
H71928/HQ1	140	190	24	53.8	59.2	8000	13000	50.8	55.8	7500	12000
71930	150	210	28	118.2	175.1	5600	8500	111.4	165.8	5000	7500
H71930	150	210	28	65.2	72.8	6700	10000	61.5	68.8	6000	9000
H71930/HQ1	150	210	28	65.2	72.8	7500	12000	61.5	68.8	7000	11000
71932	160	220	28	123.6	191.2	5000	7500	116.5	181.1	4800	7000
H71932	160	220	28	66.2	75.8	6000	9000	62.5	71.5	5600	8500
H71932/HQ1		220	28	66.2	75.8	7000	11000	62.5	71.5	6700	10000
71934	170	230	28	125.7	200	4800	7000	118.5	189.4	4300	6300
H71934	170	230	28	66.8	78.8	5600	8500	63.2	74.5	5000	7500
H71934/HQ1	170	230	28	66.8	78.8	6700	10000	63.2	74.2	6000	9000
71936	180	250	33	159.7	249.1	4500	6700	150.6	235.9	4000	6000
H71936	180	250	33	79.5	95.2	5000	7500	75.2	89.8	4800	7000
H71936/HQ1	180	250	33	79.5	95.2	6000	9000	75.2	89.8	5600	8500
71938	190	260	33	162.8	260.8	4300	6300	153.5	247	3800	5600
H71938	190	260	33	80.5	98.5	4800	7000	76.2	93.2	4300	6300
H71938/HQ1	190	260	33	80.5	98.5	5600	8500	76.2	93.2	5000	7500
71940	200	280	38	198.4	311.4	3800	5600	187.1	294.9	3600	5300
H71940	200	280	38	82.8	105.5	4500	6700	78.2	99.5	4000	6000
H71940/HQ1	200	280	38	82.8	105.5	5000	7500	78.2	99.5	4500	6700
71944	220	300	38	206.6	341.1	3600	5300	194.8	323	3200	4800
H71944	220	300	38	96.9	125.4	4300	6300	91.5	118.4	3800	5600
H71944/HQ1	220	300	38	96.9	125.4	5000	7500	91.5	118.4	4300	6300
71948	240	320	38	219.2	384.2	3200	4800	206.7	363.8	3000	4500
H71948	240	320	38	153	216	3900	5800	146	200	3500	5200
H71948/HQ1	240	320	38	153	216	4500	6500	146	200	4000	5800
71952	260	360	46	284.6	528.8	3000	4500	268.3	500.8	2600	4000
71956	280	380	46	288.7	554.6	2600	4000	272.2	525.5	2200	3600

Mod. No.	d	D	Height	Cr	Cor	Grease	Oil	Weight
(mm)	(mm)	(mm)	(kN)	(kN)	(r/min)	(r/min)	(kg)
7571C	50	80	16	26	21.9	13000	17000	0.29
7571AC	50	80	16	23.6	20.1	9200	11000	0.29
7210C	50	90	20	42.8	31.8	12000	16000	0.485
7210AC	50	90	20	39.4	41.3	8500	11000	0.485
7210B	50	90	20	37.535.7	26.7	6400	8500	0.485
7310B	50	110	27	64.4	44.3	5500	7300	1.14
7410B	50	130	31	90.2	60.4	4400	6000	1.92
7011C	55	90	18	34.1	28.6	11000	15000	0.42
7011AC	55	90	18	31.1	26.3	8300	10000	0.42
7211C	55	100	21	52.9	40.2	11000	14000	0.635
7211AC	55	100	21	48.7	37.1	7600	9500	0.635
7211B	55	100	21	44.1	33.8	5700	7600	0.635
7311B	55	120	29	74.3	52	5000	6700	1.45
7012C	60	95	18	35	30.6	11000	14000	0.45
7012AC	60	95	18	31.9	28.1	7700	9700	0.45
7212C	60	110	22	64	49.5	9500	13000	0.82
7212AC	60	110	22	58.9	45.7	6900	8600	0.82
7212B	60	110	22	53.4	41.6	5100	6900	0.82
7312B	60	130	31	84.9	60.3	4600	6200	1.81
7412B	60	150	35	119	86.7	3700	5100	2.85
7013C	65	100	18	37.1	34.3	10000	13000	0.47
7013AC	65	100	18	33.7	31.4	7200	9000	0.47
7213C	65	120	23	73.1	58.7	8900	12000	1.02
7213AC	65	120	23	67.3	54.2	6400	8000	1.02
7213B	65	120	23	60.9	49.3	4800	6400	1.02
7313B	65	140	33	96.1	69.3	4300	5800	2.22
7014C	70	110	20	46.9	43	9200	12000	0.66
7014AC	70	110	20	42.7	39.4	6600	8300	0.66
7214C	70	125	24	75.9	60.2	8400	11000	1.12
7214AC	70	125	24	69.8	55.6	6100	7600	1.12
7214B	70	125	24	63.2	50.6	4600	6100	1.12
7314B	70	150	35	108	78.9	4000	5400	2.7
7015C	75	115	20	48	45.6	8700	11000	0.69
7015AC	75	115	20	43.6	41.7	6300	7800	0.69
7215C	75	130	25	86.1	70.6	8000	11000	1.23
7215AC	75	130	25	79.2	65.2	5800	7200	1.23
7215B	75	130	25	71.7	59.3	4300	5800	1.23
7915B	75	160	37	125	98.5	3400	4500	3.3
7016C	80	125	22	58.7	55.3	8000	11000	0.93
7016AC	80	125	22	53.4	50.6	5800	7200	0.93
7216C	80	140	26	92.8	77.5	7500	9900	1.5
7216AC	80	140	26	85.3	71.5	5400	6700	1.5
7216B	80	140	26	77.1	65	4000	5400	1.5
7316B	80	170	39	127	100	3500	4700	3.85
7017C	85	130	22	60.1	58.7	7600	10000	0.97
7017AC	85	130	22	54.6	53.7	5500	6800	0.97
7217C	85	150	28	107	90.6	7000	9200	1.87
7217AC	85	150	28	98.6	83.6	5000	6300	1.87
7217B	85	150	28	89.2	76	3800	5000	1.87
7317B	85	180	41	137	112	3300	4400	4.53
7018C	90	140	24	71.7	69.1	7100	9400	1.26
7018AC	90	140	24	65.2	63.3	5100	6400	1.26
7218C	90	160	30	123	105	6500	8600	2.3
7218AC	90	160	30	113	96.7	4700	5900	2.3
7218B	90	160	30	102	88	3500	4700	2.3
7318B	90	190	43	148	124	3100	4200	5.3
7019C	95	145	24	73.4	73.4	6700	8900	1.32
7019AC	95	145	24	66.6	67.1	4800	6000	1.32
7219C	95	170	32	133	112	6100	8100	2.78
7219AC	95	170	32	122	103	4400	5500	2.78
7219B	95	170	32	111	94	3300	4400	2.78
7319B	95	200	45	158	137	3000	4000	6.12

7000 Series – Angular Contact Ball Bearing
Angular single row ball bearing have a 40° contact angle
Item No.	Dimensions			Basic Load Ratings (N)		Speed (1/min)		Mass
	(mm)			Dynamic	Static	Speed (1/min)		(kg)
	d	D	B	Cr	C0r	Limiting	Reference	approx.
7004	20	42	12	13,400	7,500	18,000	–	0.061
7005	25	47	12	15,000	9,300	16,000	–	0.071
7006	30	55	13	18,300	12,500	14,000	–	0.109
7007	35	62	14	22,400	16,000	12,000	–	0.14
7008	40	68	15	26,000	18,600	10,000	–	0.17

7200 Series – Angular Contact Ball Bearing
Angular single row ball bearing have a 40° contact angle
Item No.	Dimensions			Basic Load Ratings (N)		Speed (1/min)		Mass
	(mm)			Dynamic	Static	Speed (1/min)		(kg)
	d	D	B	Cr	C0r	Limiting	Reference	approx.
7200	10	30	9	5,000	2,600	32,000	26,000	0.033
7201	12	32	10	6,950	3,550	28,000	26,000	0.035
7202	15	35	11	8,000	4,450	24,000	22,000	0.044
7203	17	40	12	10,000	5,700	20,000	20,000	0.064
7204	20	47	14	13,400	7,800	18,000	18,000	0.103
7205	25	52	15	14,600	9,300	16,000	16,000	0.127
7206	30	62	16	20,400	14,100	13,000	13,000	0.197
7207	35	72	17	27,000	19,000	11,000	12,000	0.29
7208	40	80	17	32,000	23,500	9,500	10,000	0.367
7209	45	85	19	36,000	27,000	8,500	9,500	0.411
7210	50	90	20	37,500	28,500	8,000	9,000	0.456
7211	55	100	21	46,500	38,500	7,000	8,500	0.604
7212	60	110	22	56,000	45,000	6,300	7,500	0.777
7213	65	120	23	64,000	55,000	6,000	7,000	1.08
7214	70	125	24	69,500	62,000	5,600	6,700	1.17
7215	75	130	25	68,000	62,000	5,300	6,700	1.25
7216	80	140	26	80,000	72,000	5,000	6,000	1.53
7217	85	150	28	90,000	86,000	4,500	6,000	1.94
7218	90	160	30	106,000	98,000	4,300	5,600	2.38
7219	95	170	32	116,000	106,000	4,000	5,300	2.64
7220	100	180	34	137,000	132,000	3,800	5,000	3.45
7221	105	190	36	144,000	142,000	6,000	4,800	4.18
7222	110	200	38	155,000	154,000	3,600	4,500	4.7
7224	120	215	40	169,000	178,000	3,400	4,300	5.31
7226	130	230	40	186,000	204,000	3,200	3,800	6.12
7228	140	250	42	198,000	231,000	4,800	3,400	8.55
7230	150	270	45	227000	275000	4,500	3000	10.9
7232	160	290	48	236,000	280,000	4,300	2,800	13.5
7234	170	310	52	265,000	325,000	3,800	2,600	16.7

7300 Series – Angular Contact Ball Bearing
Angular single row ball bearing have a 40° contact angle
Item No.	Dimensions			Basic Load Ratings (N)		Speed (1/min)		Mass
	(mm)			Dynamic	Static	Speed (1/min)		(kg)
	d	D	B	Cr	C0r	Limiting	Reference	approx.
7301	12	37	12	10.600	5.300	24.000	19.000	0,066
7302	15	42	13	13.200	7.200	20.000	17.000	0,081
7303	17	47	14	16.300	9.000	18.000	15.000	0,11
7304	20	52	15	19.000	11.100	17.000	13.000	0,143
7305	25	62	17	26.000	15.800	14.000	11.000	0,242
7306	30	72	19	33.000	2.210	11.000	10.000	0,341
7307	35	80	21	40.000	27.500	9.500	9.000	0,447
7308	40	90	23	50.000	34.500	8.500	8.500	0,646
7309	45	100	25	61.000	43.000	7.500	7.500	0,813
7310	50	110	27	70.000	50.000	7.000	7.000	1,13
7311	55	120	29	80.000	61.000	6.300	6.700	1,46
7312	60	130	31	90.000	69.000	5.600	6.300	1,74
7313	65	140	33	103.000	82.000	5.300	6.000	2,12
7314	70	150	35	117.000	93.000	5.000	5.600	2,58
7315	75	160	37	130.000	107.000	4.500	5.300	3,29
7316	80	170	39	144.000	124.000	4.300	4.800	3,66
7317	85	180	41	155.000	138.000	4.000	4.500	4,4
7318	90	190	43	167.000	155.000	3.800	4.300	5,14
7319	95	200	45	176.000	167.000	3.800	4.000	5,93
7320	100	215	47	199.000	197.000	3.600	3.600	7,16
7321	105	225	49	209.000	214.000	5.300	3.400	9,0
7322	110	240	50	232.000	245.000	3.400	3.200	9,97
7324	120	260	55	255.000	285.000	3.200	3.000	12,5
7326	130	280	58	285.000	325.000	3.000	2.600	15,1
7328	140	300	62	300.000	345.000	4.300	2.400	20,5
7330	150	320	65	325.000	390.000	3.800	2.200	24,8
7332	160	340	68	360.000	450.000	3.600	2.000	29,0
7334	170	360	72	405.000	530.000	3.200	1.900	34,4

Part No.	d/mm	D/mm	B/mm	Load Rating(KN)		Limited Speed(r/min)		Load Rating(KN)		Limited Speed(r/min)
				Load Rating(KN)		Limited Speed(r/min)		Load Rating(KN)		Limited Speed(r/min)
				Cr/KN	Cor/KN	Grease	Oil	Cr/KN	Cor/KN	Grease	Oil
72 serie				α=15°(C)				α=25°(AC)
7200	10	30	9	6.5	3.8	56000	85000	6.3	3.7	53000	80000
7201	12	32	10	7.2	4.5	53000	80000	6.9	4.3	48000	70000
7202	15	35	11	9.1	5.8	48000	70000	8.8	5.6	43000	63000
7203	17	40	12	11.3	7.4	40000	60000	10.9	7.1	38000	56000
7204	20	47	14	13.1	9.6	34000	50000	12.6	9.2	30000	45000
7205	25	52	15	16.8	13.1	30000	45000	16.1	12.5	26000	40000
7206	30	62	16	23.4	18.8	24000	38000	22.3	18	20000	34000
7207	35	72	17	25.8	22.9	18000	30000	24.5	21.9	17000	28000
7208	40	80	18	34.1	30.9	17000	28000	32.5	29.5	15000	24000
7209	45	85	19	35.5	33.8	16000	26000	33.8	32.3	14000	22000
7210	50	90	20	43.3	40.6	15000	24000	41.3	38.7	14000	22000
7211	55	100	21	53.6	51.1	14000	22000	51.1	48.8	13000	20000
7212	60	110	22	55.8	56.2	12000	19000	53	53.5	11000	18000
7213	65	120	23	67.5	69	11000	18000	64.2	65.8	9500	16000
7214	70	125	24	70.2	74.6	10000	17000	66.6	71.1	9000	15000
7215	75	130	25	72.7	80.2	9500	16000	68.9	76.3	8500	14000
7216	80	140	26	86.5	96.5	9000	15000	82.1	91.9	8000	13000
7217	85	150	28	97.4	107.5	8500	14000	92.5	102.4	7500	12000
7218	90	160	30	121.9	131.3	8000	13000	115.8	124.6	7000	11000
7219	95	170	32	128.9	145.1	7500	12000	122.5	138.3	6700	10000
7220	100	180	34	146.2	165.9	7000	11000	138.9	158.2	6700	10000
7221	105	190	36	164.3	188.2	7000	11000	156.3	179.5	6300	9500
7222	110	200	38	170.4	202.5	6700	10000	161.8	193	6000	9000
7224	120	215	40	175.4	218.4	6000	9000	166.3	207.9	5300	8000
7226	130	230	40	200.4	258.3	5600	8500	190.4	246.2	5000	7500
7228	140	250	42	223.6	306.6	5000	7500	212.3	292.2	4500	6700
7230	150	270	45	240.9	341.5	4500	6700	228.7	325.5	4000	6000
7232	160	290	48	248.6	365.8	4300	6300	236.1	348.6	3800	5600
7234	170	310	52	300.2	459.2	3800	5600	285	437.6	3600	5300
7236	180	320	52	311.2	490.8	3800	5600	295.5	467.7	3400	5000
7238	190	340	55	321.3	524.8	3400	5000	305.1	500.1	3200	4800
7240	200	360	58	330.9	558.6	3200	4800	314.2	532.3	3000	4500

Angular Contact Ball Bearing
											X1=OD-0.5mm
Single Row			Double Row						Four Points Contact Ball
70 series	72 series	73 series	52 series	53 series	32 series	33 series	40 series	49 series	QJ series	QJF series	X1 series
ITEM	ITEM	ITEM	ITEM	ITEM	ITEM	ITEM	ITEM	ITEM	ITEM	ITEM	ITEM	ITEM
7000	7200	7300	5200		3200		4032	4936	QJ203	QJF203	QJ1571X1	QJF1571X1
7001	7201	7301	5201		3201			4936X3	QJ303	QJF303
7002	7202	7302	5202	5302	3202	3302		4938X3	QJ304	QJF304	QJ1571X1	QJF1571X1
7003	7203	7303	5203	5303	3203	3303	4040		QJ205	QJF205
7004	7204	7304	5204	5304	3204	3304	4044	4944X3	QJ206	QJF206	QJ1571X1	QJF1571X1
7005	7205	7305	5205	5305	3205	3305	4048X1		QJ306	QJF306
7006	7206	7306	5206	5306	3206	3306		4952X3	QJ207	QJF207	QJ1026X1	QJF1026X1
7007	7207	7307	5207	5307	3207	3307		4956X3	QJ307	QJF307
7008	7208	7308	5208	5308	3208	3308		4960	QJ208	QJF208	QJ1571X1	QJF1571X1
7009	7209	7309	5209	5309	3209	3309		4960X3	QJ308	QJF308
7571	7210	7310	5210	5310	3210	3310			QJ209	QJF209	QJ1030X1	QJF1030X1
7011	7211	7311	5211	5311	3211	3311			QJ309	QJF309
7012	7212	7312	5212	5312	3212	3312			QJ210	QJF210	QJ1032X1	QJF1032X1
7013	7213	7313	5213	5313	3213	3313			QJ310	QJF310
7014	7214	7314	5214	5314	3214	3314			QJ212	QJF212	QJ1034X1	QJF1034X1
7015	7215	7315	5215	5315	3215	3315			QJ214	QJF214
7016	7216	7316	5216			3316			QJ216	QJF216	QJ1036X1	QJF1036X1
7018	7218	7318	5217		3220				QJ220	QJF220
	7219	7319	5218			3322			QJ222	QJF222	QJ1038X1	QJF1038X1
7571	7220	7320	5219						QJ1571	QJF1571
		7321	5220						QJ224	QJF224	QJ1040X1	QJF1040X1
7571	7222	7322							QJ1026	QJF1026
7571	7224	7324							QJ226	QJF226
7026	7226	7326							QJ1571	QJF1571
7571	7228	7328							QJ228	QJF228
7030	7230	7330							QJ1030	QJF1030
7032	7232	7332							QJ230	QJF230
7034	7234								QJ1032	QJF1032
7036	7236	7336							QJ232	QJF232
7038									QJ1034	QJF1034
7040	7240								QJ234	QJF234
71952	7244								QJ1036	QJF1036
71956	72948								QJ236	QJF236
71957	7248								QJ1038	QJF1038
7072									QJ238	QJF238
71976									QJ1040	QJF1040
									QJ240	QJF240
									QJ1044	QJF1044
									QJ1048	QJF1048
									QJ1052	QJF1052
									QJ1056	QJF1056
									QJ1060	QJF1060
									QJ1064	QJF1064
									QJ1068	QJF1068

SAMPLES
1. Samples quantity: 1-10 PCS are available.
2. Free samples: It depends on the Model No., material and quantity. Some of the bearings samples need client to pay samples charge and shipping cost.
3. It’s better to start your order with Trade Assurance to get full protection for your samples order.

CUSTOMIZED
The customized LOGO or drawing is acceptable for us.

MOQ
1. MOQ: 10 PCS standard bearings.
2. MOQ: 1000 PCS customized your brand bearings.

OEM POLICY
1. We can printing your brand (logo, artwork)on the shield or laser engraving your brand on the shield.
2. We can custom your packaging according to your design
3. All copyright own by clients and we promised don’t disclose any info.

Thank you very much for taking time to view our company’s website. If you are interested in this product, please feel free to contact us. We are always here.
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Contact Angle:	25°
Aligning:	Non-Aligning Bearing
Separated:	Separated

Samples:	US$ 2/Set 1 Set(Min.Order) \| Order Sample

Customization:	Available \| Customized Request

.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost: Estimated freight per unit.	about shipping cost and estimated delivery time.

Payment Method:
	Initial Payment Full Payment

Currency:	US$

Return&refunds:	You can apply for a refund up to 30 days after receipt of the products.

ball bearing

Are there Specific Maintenance Practices to Ensure the Longevity of Ball Bearings?

Regular Lubrication:

Clean Environment:

Proper Installation:

Regular Inspections:

Temperature Monitoring:

Monitor bearing temperatures during operation using infrared thermometers or sensors. Abnormal temperature increases can indicate inadequate lubrication, misalignment, or other problems.

Correct Handling:

Handle bearings with care to prevent damage during storage, transportation, and installation. Avoid dropping or subjecting them to impacts that can affect their internal components.

Bearing Removal and Replacement:

Follow proper procedures when removing and replacing bearings. Use appropriate tools and techniques to avoid damage to the bearing or the surrounding components.

Alignment Maintenance:

Maintain proper shaft and housing alignment to prevent excessive loads and wear on the bearing. Misalignment can lead to increased stress and premature failure.

Training and Education:

Provide training to operators and maintenance personnel on proper bearing maintenance and handling practices. Educated personnel are more likely to identify issues and perform maintenance correctly.

Documented Records:

ball bearing

How do Ceramic Ball Bearings Compare to Traditional Steel Ball Bearings in Terms of Performance?

Material Composition:

Ceramic Ball Bearings:

Traditional Steel Ball Bearings:

Friction and Heat:

Ceramic Ball Bearings:

Ceramic bearings have lower friction coefficients compared to steel bearings. This results in reduced heat generation during operation, contributing to higher efficiency and potential energy savings.

Traditional Steel Ball Bearings:

Steel bearings can generate more heat due to higher friction coefficients. This can lead to increased energy consumption in applications where efficiency is crucial.

Weight:

Ceramic Ball Bearings:

Ceramic bearings are lighter than steel bearings due to the lower density of ceramics. This weight reduction can be advantageous in applications where minimizing weight is important.

Traditional Steel Ball Bearings:

Steel bearings are heavier than ceramic bearings due to the higher density of steel. This weight may not be as critical in all applications but could impact overall equipment weight and portability.

Corrosion Resistance:

Ceramic Ball Bearings:

Ceramic bearings have excellent corrosion resistance, making them suitable for applications in corrosive environments, such as marine or chemical industries.

Traditional Steel Ball Bearings:

Steel bearings are susceptible to corrosion, especially in harsh environments. Stainless steel variants offer improved corrosion resistance but may still corrode over time.

Speed and Precision:

Ceramic Ball Bearings:

Traditional Steel Ball Bearings:

Cost:

Ceramic Ball Bearings:

Ceramic bearings are generally more expensive to manufacture than steel bearings due to the cost of ceramic materials and the challenges in producing precision ceramic components.

Traditional Steel Ball Bearings:

Steel bearings are often more cost-effective to manufacture, making them a more economical choice for many applications.

ball bearing

How do Ball Bearings Differ from Other Types of Bearings like Roller Bearings?

Ball bearings and roller bearings are two common types of rolling-element bearings, each with distinct designs and characteristics. Here’s a comparison of ball bearings and roller bearings:

Design:

Ball Bearings: Ball bearings use spherical balls to separate and reduce friction between the bearing’s inner and outer rings. The balls enable rolling motion and smooth contact, minimizing friction.

Roller Bearings: Roller bearings, as the name suggests, use cylindrical or tapered rollers instead of balls. These rollers have larger contact areas, distributing loads over a broader surface.

Friction and Efficiency:

Ball Bearings: Due to the point contact between the balls and the rings, ball bearings have lower friction and are more efficient at high speeds.

Roller Bearings: Roller bearings have a larger contact area, resulting in slightly higher friction compared to ball bearings. They are more suitable for heavy-load applications where efficiency is prioritized over high speeds.

Load Capacity:

Ball Bearings: Ball bearings excel at handling light to moderate loads in both radial and axial directions. They are commonly used in applications where smooth rotation and low friction are important.

Roller Bearings: Roller bearings have a higher load-carrying capacity than ball bearings. They can support heavier radial and axial loads and are preferred for applications with significant loads or impact forces.

Variability:

Ball Bearings: Ball bearings come in various designs, including deep groove, angular contact, and thrust ball bearings, each suitable for different applications.

Roller Bearings: Roller bearings have diverse types, including cylindrical, spherical, tapered, and needle roller bearings, each optimized for specific load and motion requirements.

Speed Capability:

Ball Bearings: The reduced friction in ball bearings makes them suitable for high-speed applications, such as electric motors and precision machinery.

Roller Bearings: Roller bearings can handle higher loads but are generally better suited for moderate to low speeds due to slightly higher friction.

Applications:

Ball Bearings: Ball bearings are used in applications where smooth motion, low friction, and moderate loads are essential, such as electric fans, bicycles, and some automotive components.

Roller Bearings: Roller bearings find applications in heavy machinery, construction equipment, automotive transmissions, and conveyor systems, where heavier loads and durability are crucial.

In summary, ball bearings and roller bearings differ in their design, friction characteristics, load capacities, speed capabilities, and applications. The choice between them depends on the specific requirements of the machinery and the type of loads and forces involved.

China wholesaler NSK, NTN. Koyo,Angular Contact Ball Bearings,7348c,7348CTA,7348ceta,7348acm,B7348c,7352c,7352CTA,7352ceta,7352acm,B7352c,7356c,7356CTA,7356ceta,7356acm,B7356c, bearing engineering
editor by CX 2024-04-22