Type: BALL
Structure: Deep Groove
Applicable Industries: Building Material Shops, Printing Shops, Farms, Construction works , Garment Shops, Restaurant, Advertising Company, Machinery Repair Shops, Food & Beverage Shops, Food Shop, Retail, Energy & Mining, Manufacturing Plant, Food & Beverage Factory, Hotels, Home Use, Other
Bore Size: 4.5 – 4.51 inch
Model Number: KA045XP0
Precision Rating: P0
Seals Type: ZZ 2RS OPEN
Number of Row: Single row
Bearing’s Type: KA045XP0 thin section angular contact bearings
Certificate: CE
OEM Service: Custom bearing’s size, logo, packing ,etc.
Packaging Details: 1, Universal Packing2, HXHV Packing3, Customized Packing4, Other original Packing
Port: ZheJiang , HangZhou, HangZhou, etc

Products Description Attention:The price above is only for reference ! Please contact us for the exact price.The final cost depends on shipping cost, bearing’s material, precision and packing, etc. Material: Chrome steel rings & brass retainerSample: AvailableMOQ: $100 per oerder.Optional Brand: Universal / HXHV / Customized / Original BrandOptional Material: chrome steel / stainless steel / full ceramic / hybrid ceramic / POM plastic Type of thin wall bearing:Thin section bearingsThin section deep groove ball bearingThin section angular contact ball bearingsNon-standard thin section bearing Special thin section bearing for robotHigh operation precision, easy installation, save space Non-standard customization: to meet customers’ requirements for non-standard bearingsIndependent research and development: provide competitive price of thin wall bearingsProduction strength: advanced testing equipment Why Choose us:Factory direct saleIndependent productionQuick shipmentIn StockResearch and development abilityAfter-sale serviceCertificate: CE OEM Service:Customized bearing’s logoCustomized bearing’s sizeCustomized bearing’s packingCustomized bearing’s material.We can engrave your logo and bearing’s model number on bearings by laser. Tip: If full customized, buyer can send us the drawing or samples, we will quote you after that. Once we reach agreement about the cost, we will start to produce the samples for your testing. When you confirmed the quality and function of the samples, we wil sign contract and start the mass production. The goods will be the same with samples. Material:Standard bearing’s material is chrome steel (GCr15). It is also called bearing steel. The material can become oxidized and rust after prolonged exposure to humid air, so we filled them with oil or grease to prevend rusting. Stainless steel bearing material. We usually use 440 stainless steel to produce the bearing. It has stronger rust and corrosion resistance, so generally do not need to add lubricating oil or lubricant. Relative to bearing steel, stainless steel quality is better, the price is more expensive. Full Ceramic or hybrid ceramic material. The ceramics used in the production of bearings are generally black silicon nitride(Si3N4) and white zirconia (ZrO2). Plastic bearing are usually made of POM, PA inner and outside rings, glass balls and nylon retainer.To reduce the cost and avoide rusting, buyers can also choose the chea carbon steel material and zinc coated on bearing surface. The best fit is the best, not the most expensive.And it mainly depends on where the bearing will be used and buyer’s requirement. Full ceramic thin section ball bearings Retainer:Steel Bearing’s retainer are normally be made of stainless steel, chrome steel, carbon steel. And the retainer type is ribbonsteel retainer or crown steel retainer.Full ceramic or hybrid ceramic bearings’ retainer are usually made of plastic POM, Nylon, or high polymer material PTFE , PEEK. Seal Type:ZZ type —- Bearing is sealed by steel on both sides.2RS type —- Bearing is sealed by black, blue or other colful rubber on both sides.Open type —- Bearing comes without seal on any side. Lubrication:Oil Lubrication usually be used for small bearings.Grease Lubrication usually be used for bearings with bigger size.Function: the oil and grease will reduce the speed of bearing, but they can also prevent from rusting, extend the service life of the bearings Radil Clearance:The radial clearance of our bearing can be classified C2, C0, C3, C4 & C5 according to customer’s request. Vibration and Noise:The vibration and noise of bearing are classified in 4 classes Z1 Z2 Z3 Z4. It is measured by the instrument of S571-1. For special requirement, it is meassured by BVT-1 and classifited as V1 V2 and V3. Different vibration and noise requirement should be mention in advance. Packing:Universal Packing comes without any brand, logo or company name on products and packing box. We pack with plastic tube, white inner box, butter pater, plastic bag, etc.HXHV Packing is our own packing with our brand on packin box.Customized Packing depends on buyer’s requirement. we can print your logo on packing box, produce the inner box with your drawing.Original Brand Packing is only depends on the bearing’s supplier Application:HXHV bearings are widely used in automobile, bicycle, reducer, medical equipment, sports equipment, aviation, robot joints, machine tools, packaging equipment, textile machinery, semiconductor processing equipment and rotating table and other transmission devices. HXHV bearings can also be used for family appliance and business equipment. Such as air-condition, wahser, cleaner, massage chair, sewing machine, rangehood, micro-wave oven, duplicating machine, etc. Precision:According to the international standard, the accuracy of bearing can be divided in to 5 grades: normal grade P0, high grade P6, accurate grade P5, over accuracy grade P4 and over the 4th grade P2. The contrast of bearing accuracy see table below.

Country	Standard	Accuracy Grade
China	GB307.1	P0	P6	P5	P4	P2
International Standard Organization	ISO	Normal Class	Class6	Class5	Class4	Class2
Sweden	**	P0	P6	P5	P4	P2
Germany	DIN	P0	P6	P5	P4	P2
Japan	JIS	P0	P6	P5	P4	P2
U.S.A	ANSI	ABEC1	ABEC3	ABEC5	ABEC7	ABEC9

Our Product Range:Thin Section Ball Bearings,Slewiing Bearings,Deep Groove Ball Bearings,Micro Ball Bearings,Flange Bearings,Ceramic BallBearings,Angular Contact Ball Bearings,Thrust Ball Bearings,Thrust Roller Bearings,Spherical Plain Bearings,Tapered RollerBearings,Linear Motion Xihu (West Lake) Dis. System,Ball Screw,Linear Bushing,Non-standard Bearings,Stainless Steel Bearings,Door & Window Rollers,Needle Roller Bearings,Wheel Hub Bearings,Spherical Roller Bearings,Rod-end Bearings,Cylindrical Roller Bearings,Pillow Block Bearings,Self-aligning Ball Bearings,Customized Plastic Parts,Copper Bushing,Bearing Parts We have a complete range of bearing, can provide customers with safe and assured one-stop procurement services. Lead-Time:If there are semi-finished materials in warehouse, the general lead time is 3 to 5 days.If we need to purchase raw materials, it usually takes about 7 to 15 days according to the customer’s order quantity. Delivery:By Air. Goods under 100 kg are usually sent by international express, such as DHL, UPS, FEDEX, etc., for the sake of timeliness of transportation.By sea. If the goods are heavy, they will arrive at the port of destination about 30 days from the date of shipment. Payment Terms:We offer a variety of secure payment methods: T/T, L/C, Paypal, Western Union, Money Grame, Cash, etc. Warranty:We do not produce poor quality bearings, so there are few bearing quality after-sales problems. Of course, if there is a problem, we will actively cooperate with the buyer to solve the problem, never escape any problem. Please contact us for more details and the latest price. Buyers Comments Recommend Products Visit Store

How to Replace a Bearing

If you want to select a bearing for a specific application, you should know a few basics. This article will give you an overview of ball, angular contact, and sliding-contact bearings. You can choose a bearing according to the application based on the characteristics of its material and preload. If you are not sure how to choose a bearing, try experimenting with it. The next step is to understand the Z-axis, which is the axes along which the bearing moves.

Z axis

When it comes to replacing your Z axis bearing, there are several things you must know. First, you need to make sure that the bearings are seated correctly. Then, you should check the tension and rotation of each one. To ensure that both bearings are equally tensioned, you should flex the Core to the desired angle. This will keep the Z axis perpendicular to the work surface. To do this, first remove the Z axis bearing from its housing and insert it into the Z axis motor plate. Next, insert the flanged bearing into the Z axis motor plate and secure it with two M5x8mm button head cap screws.
Make sure that the bearing plate and the Z Coupler part are flush and have equal spacing. The spacing between the two parts is important, as too much spacing will cause the leadscrew to become tight. The screws should be very loose, with the exception of the ones that engage the nylocks. After installing the bearing, the next step is to start the Z axis. Once this is done, you’ll be able to move it around with a stepper.

Angular contact

Ball bearings are made with angular contacts that result in an angle between the bearing’s races. While the axial load moves in one direction through the bearing, the radial load follows a curved path, tending to separate the races axially. In order to minimize this frictional effect, angular contact bearings are designed with the same contact angle on the inner and outer races. The contact angle must be chosen to match the relative proportions of the axial and radial loads. Generally, a larger contact angle supports a higher axial load, while reducing radial load.
Ball bearings are the most common type of angular contact bearings. Angular contact ball bearings are used in many applications, but their primary purpose is in the spindle of a machine tool. These bearings are suitable for high-speed, precision rotation. Their radial load capacity is proportional to the angular contact angle, so larger contact angles tend to enlarge with speed. Angular contact ball bearings are available in single and double-row configurations.
Angular contact ball bearings are a great choice for applications that involve axial loads and complex shapes. These bearings have raceways on the inner and outer rings and mutual displacement along the axial axis. Their axial load bearing capacity increases as the contact Angle a rises. Angular contact ball bearings can withstand loads up to five times their initial weight! For those who are new to bearings, there are many resources online dedicated to the subject.
Despite their complexity, angular contact ball bearings are highly versatile and can be used in a wide range of applications. Their angular contact enables them to withstand moderate radial and thrust loads. Unlike some other bearings, angular contact ball bearings can be positioned in tandem to reduce friction. They also feature a preload mechanism that removes excess play while the bearing is in use.
Angular contact ball bearings are made with different lubricants and cage materials. Standard cages for angular contact ball bearings correspond to Table 1. Some are machined synthetic resins while others are molded polyamide. These cage materials are used to further enhance the bearing’s axial load capacity. Further, angular contact ball bearings can withstand high speeds and radial loads. Compared to radial contact ball bearings, angular contact ball bearings offer the greatest flexibility.

Ball bearings

Ball bearings are circular structures with two separate rings. The smaller ring is mounted on a shaft. The inner ring has a groove on the outer diameter that acts as a path for the balls. Both the inner and outer ring surfaces are finished with very high precision and tolerance. The outer ring is the circular structure with the rolling elements. These elements can take many forms. The inner and outer races are generally made of steel or ceramic.
Silicon nitride ceramic balls have good corrosion resistance and lightweight, but are more expensive than aluminum oxide balls. They also exhibit an insulating effect and are self-lubricating. Silicon nitride is also suitable for high-temperature environments. However, this type of material has the disadvantage of wearing out rapidly and is prone to cracking and shattering, as is the case with bearing steel and glass. It’s also less resistant to heat than aluminum oxide, so it’s best to buy aluminum nitride or ceramic ball bearings for applications that are subjected to extremely high temperatures.
Another type of ball bearings is the thrust bearing. It has a special design that accommodates forces in both axial and radial directions. It is also called a bidirectional bearing because its races are side-by-side. Axial ball bearings use a side-by-side design, and axial balls are used when the loads are transmitted through the wheel. However, they have poor axial support and are prone to separating during heavy radial loads.
The basic idea behind ball bearings is to reduce friction. By reducing friction, you’ll be able to transfer more energy, have less erosion, and improve the life of your machine. With today’s advances in technology, ball bearings can perform better than ever before. From iron to steel to plastics, the materials used in bearings have improved dramatically. Bearings may also incorporate an electromagnetic field. So, it’s best to select the right one for your machine.
The life expectancy of ball bearings depends on many factors, including the operating speed, lubrication, and temperature. A single million-rpm ball bearing can handle between one and five million rotations. As long as its surface contact area is as small as possible, it’s likely to be serviceable for at least one million rotations. However, the average lifespan of ball bearings depends on the application and operating conditions. Fortunately, most bearings can handle a million or more rotations before they start showing signs of fatigue.

Sliding-contact bearings

The basic principle behind sliding-contact bearings is that two surfaces move in contact with one another. This type of bearing works best in situations where the surfaces are made of dissimilar materials. For instance, a steel shaft shouldn’t run in a bronze-lined bore, or vice versa. Instead, one element should be harder than the other, since wear would concentrate in that area. In addition, abrasive particles tend to force themselves into the softer surface, causing a groove to wear in that part.
Sliding-contact bearings have low coefficients of friction and are commonly used in low-speed applications. Unlike ball and roller bearings, sliding contact bearings have to be lubricated on both sides of the contacting surfaces to minimize wear and tear. Sliding-contact bearings generally are made of ceramics, brass, and polymers. Because of their lower friction, they are less accurate than rolling-element bearings.
Sliding-contact bearings are also known as plain or sleeve bearings. They have a sliding motion between their two surfaces, which is reduced by lubrication. This type of bearing is often used in rotary applications and as guide mechanisms. In addition to providing sliding action, sliding-contact bearings are self-lubricating and have high load-carrying capacities. They are typically available in two different types: plain bearings and thrust bearings.
Sliding-contact linear bearing systems consist of a moving structure (called the carriage or slide) and the surfaces on which the two elements slide. The surfaces on which the bearing and journal move are called rails, ways, or guides. A bore hole is a complex geometry, and a minimum oil film thickness h0 is usually used at the line of centers. It is possible to have a sliding-contact bearing in a pillow block.
Because these bearings are porous, they can absorb 15 to 30% of the lubrication oil. This material is commonly used in automobile and machine tools. Many non-metallic materials are used as bearings. One example is rubber, which offers excellent shock absorbency and embeddability. While rubber has poor strength and thermal conductivity, it is commonly used in deep-well pumps and centrifugal pumps. This material has high impact strength, but is not as rigid as steel.

editor by czh