China Standard KA035XP0 CZPT CE OEM chrome steel CZPT catalog ultra reali slim wall roller silverthin ball tapered thrust angular contact metric sleeve thin section bearings ball bearing

Product Description

KA Series thin section bearings:

Model Number Bore Dia. Outside Dia. Width Weight
KA571XP0 2″ 2.5″ 0.25″ 0.1 lb
KA571XP0 2.5″ 3″ 0.25″ 0.13 lb
KA030XP0 3″ 3.5″ 0.25″ 0.15 lb
KA035XP0 3.5″ 4″ 0.25″ 0.18 lb
KA040XP0 4″ 4.5″ 0.25″ 0.19 lb
KA042XP0 4.25″ 4.75″ 0.25″ 0.2 lb
KA045XP0 4.5″ 5″ 0.25″ 0.22 lb
KA047XP0 4.75″ 5.25″ 0.25″ 0.23 lb
KA050XP0 5″ 5.5″ 0.25″ 0.24 lb
KA055XP0 5.5″ 6″ 0.25″ 0.25 lb
KA060XP0 6″ 6.5″ 0.25″ 0.28 lb
KA065XP0 6.5″ 7″ 0.25″ 0.3 lb
KA070XP0 7″ 7.5″ 0.25″ 0.31 lb
KA075XP0 7.5″ 8″ 0.25″ 0.34 lb
KA080XP0 8″ 8.5″ 0.25″ 0.38 lb
KA090XP0 9″ 9.5″ 0.25″ 0.44 lb
KA100XP0 10″ 10.5″ 0.25″ 0.5 lb
KA110XP0 11″ 11.5″ 0.25″ 0.52 lb
KA120XP0 12″ 12.5″ 0.25″ 0.56 lb

The thin section bearing are used for mechanical or robot arm. It also be wildly used for rotating platform, such as industrial or medical facilities.


Universal Packing

Without any logo on bearings or packing.

HXHV Packing

With our brand HXHV on bearings and packing.

Customized Packing

Depends on buyer’s requirements.

Original Brand Packing

Bearing and packing are both original. Please contact us for pictures.

OEM / Customized Service
We can engrave your logo or model number on bearings and packing box by laser.
If you need non-standard bearings. we can also product them for you.

Our bearings comes with CE certificate and our company has been verified by SGS Group. Please contact us for clear certificate photos.
Other Bearings:
We supply different types of ball and roller bearings, slewing bearings, mini bearings, ceramic bearings, Linear guides. 

To get price list of promotion bearings, please contact us.
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Product Name: Thin section bearings
OEM Service: Custom bearing′s size, logo, packing, etc.
Certificate: CE
In Stock: Yes
Bore Diameter: 3.5 inch / 89 mm
Outer Diameter: 4 inch / 102 mm
US$ 15/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

roller bearing

Can you describe the various types of seals and shields used with roller bearings for contamination prevention?

Roller bearings are often equipped with seals and shields to prevent contamination from entering the bearing and to retain lubrication. These protective devices help maintain the performance, reliability, and longevity of the bearings in various applications. Here’s a description of the various types of seals and shields commonly used with roller bearings:

  • Contact Seals:

Contact seals, also known as lip seals or radial seals, are designed to create a physical barrier between the bearing and its external environment. They consist of a flexible lip made of elastomeric material, such as nitrile rubber or fluoroelastomer, which makes contact with the inner or outer ring of the bearing. Contact seals provide an effective seal against solid and liquid contaminants, preventing their ingress into the bearing. They also retain the lubricating grease inside the bearing, minimizing the need for frequent relubrication. Contact seals are commonly used in applications where moderate sealing performance is required, such as electric motors, pumps, and automotive wheel bearings.

  • Non-Contact Seals:

Non-contact seals, also known as labyrinth seals or gap seals, do not make physical contact with the bearing surfaces. They feature a series of labyrinth-like channels or grooves that create a tortuous path for contaminants, effectively blocking their entry into the bearing. Non-contact seals provide less friction compared to contact seals, which can be beneficial for applications that require high-speed operation. However, they may offer slightly lower sealing performance in extremely dusty or wet environments. Non-contact seals are commonly used in applications such as machine tools, industrial gearboxes, and high-speed rotating equipment.

  • Metal Shields:

Metal shields, also known as metal covers or metal shields, are rigid plates made of metal, typically steel, that are attached to the bearing outer ring. They provide a physical barrier against larger contaminants, such as dirt and debris, while allowing for limited lubricant flow. Metal shields offer good protection in applications where the primary concern is preventing large solid particles from entering the bearing. They are commonly used in applications such as electric motors, fans, and agricultural machinery.

  • Rubber Shields:

Rubber shields, also known as rubber seals or non-metallic shields, are made of synthetic rubber materials and are attached to the bearing outer ring. They provide effective protection against both solid and liquid contaminants, ensuring a high degree of sealing performance. Rubber shields offer better sealing capabilities compared to metal shields but may introduce slightly more friction. They are commonly used in applications that require enhanced sealing performance, such as automotive wheel bearings, conveyor systems, and food processing equipment.

  • Felt Seals:

Felt seals are made of compressed or impregnated felt material and are used for light-duty sealing applications. They provide a barrier against larger solid contaminants and certain types of liquid contaminants. Felt seals are commonly used in low-speed applications, such as pillow block bearings and lightly loaded machinery.

In summary, roller bearings can be equipped with various types of seals and shields to prevent contamination. Contact seals, non-contact seals, metal shields, rubber shields, and felt seals are commonly used depending on the specific application requirements. These protective devices play a vital role in maintaining the cleanliness and lubrication of the bearing, ensuring optimal performance, reliability, and longevity.

roller bearing

Can roller bearings be customized or modified for unique industrial needs?

Yes, roller bearings can be customized or modified to meet unique industrial needs. Manufacturers understand that different industries and applications may have specific requirements that cannot be fulfilled by standard off-the-shelf bearings. Customization or modification of roller bearings allows for tailored solutions that address the unique challenges and demands of specific industrial applications. Here’s a detailed explanation of how roller bearings can be customized or modified:

  • Size and Configuration:

Roller bearings can be customized in terms of size and configuration to fit specific dimensional requirements. Different industries may have limitations in terms of available space or require bearings to fit into existing designs. Manufacturers can provide custom bearing sizes, shapes, or configurations to meet these specific needs. This can include variations in the number and arrangement of roller elements, cage designs, or outer ring profiles to optimize the bearing’s performance and compatibility with the application.

  • Load Capacity:

For applications with unique or heavy load requirements, roller bearings can be customized to enhance their load-carrying capacity. This can involve using different materials for the bearing components, optimizing the design geometry, or incorporating additional features such as larger rolling elements or modified cage designs. By customizing the bearing’s load capacity, it becomes better suited to withstand the specific forces and loads encountered in the industrial application.

  • High-Speed Performance:

In industries that require high-speed machinery or equipment, roller bearings can be customized to improve their performance at elevated speeds. High-speed applications often involve challenges such as increased temperature, centrifugal forces, or vibration. Customization can involve selecting specialized materials with improved heat resistance, optimizing the bearing’s internal geometry for reduced friction or better lubricant flow, or incorporating advanced cage designs that minimize cage wear and maintain stability at high speeds.

  • Specialized Materials and Coatings:

Roller bearings can be customized by using specialized materials or coatings to enhance their performance in specific environments. For example, industries with corrosive or high-temperature conditions may require bearings made from stainless steel or equipped with corrosion-resistant coatings. Additionally, specialized coatings such as ceramic or diamond-like carbon (DLC) coatings can be applied to reduce friction, improve wear resistance, or enhance the bearing’s overall performance in demanding applications.

  • Sealing and Lubrication:

Customization of roller bearings can involve designing and incorporating specific sealing mechanisms or lubrication systems tailored to the application’s requirements. This ensures effective protection against contaminants, such as dust, moisture, or debris, and allows for optimized lubrication to enhance the bearing’s performance and longevity. Custom sealing arrangements, such as labyrinth seals or triple-lip seals, can be implemented to provide higher levels of protection in challenging environments.

  • Integrated Sensors or Monitoring Systems:

In certain industries, there is a need for real-time monitoring of bearing performance or condition. Roller bearings can be customized with integrated sensors or monitoring systems to provide data on parameters such as temperature, vibration, or lubricant condition. These customizations allow for proactive maintenance, early fault detection, and overall system optimization by providing valuable insights into the bearing’s health and performance.

It is important to note that customization or modification of roller bearings typically involves collaboration between the bearing manufacturer, application engineers, and end-users. Through this collaborative process, the specific requirements and challenges of the industrial application can be understood, and the necessary modifications or customizations can be implemented to ensure optimal performance and reliability.

roller bearing

How do roller bearings compare to other types of bearings, like ball bearings?

Roller bearings and ball bearings are two common types of bearings used in various applications. While both types serve the same purpose of facilitating smooth and efficient rotational motion, there are distinct differences between them. Here’s a detailed comparison of roller bearings and ball bearings:

  • Design and Construction:

Ball bearings have rolling elements in the shape of spheres (balls) sandwiched between an inner and outer raceway. The rolling elements make point contact with the raceways, distributing the load evenly. Roller bearings, on the other hand, have cylindrical or tapered rolling elements (rollers) that make line contact with the raceways. The line contact allows roller bearings to distribute higher loads over a larger surface area compared to ball bearings. Roller bearings can handle radial, axial, and combined loads more effectively, making them suitable for applications with heavy loads or high thrust forces.

  • Load Capacity:

Due to their design and larger contact area, roller bearings have a higher load-carrying capacity than ball bearings. The line contact of roller bearings allows them to distribute the load more evenly, reducing localized stresses. This makes roller bearings well-suited for applications that involve significant radial or axial loads, such as conveyor systems, heavy machinery, or automotive wheel bearings. Ball bearings, while having lower load capacity compared to roller bearings, are typically used in applications with lighter loads or high-speed requirements, such as electric motors, fans, and small machinery.

  • Friction and Speed:

Ball bearings generally have lower friction compared to roller bearings due to the point contact between the rolling elements and raceways. The lower friction results in reduced energy consumption and heat generation, making ball bearings more suitable for high-speed applications. Roller bearings, with their line contact, have slightly higher friction but offer better load distribution. However, advancements in bearing technology have led to the development of low-friction roller bearings, such as tapered roller bearings with optimized designs, for improved efficiency and reduced friction at high speeds.

  • Alignment and Misalignment:

Ball bearings are more forgiving when it comes to misalignment between the shaft and the housing. Their point contact allows for some angular misalignment without significantly affecting performance. Roller bearings, particularly spherical roller bearings, can also accommodate misalignment but to a lesser extent compared to ball bearings. Cylindrical roller bearings, on the other hand, are less forgiving and require precise alignment for optimal performance. Proper alignment is crucial for both types of bearings to ensure even load distribution and prevent premature wear or failure.

  • Application Specificity:

The choice between roller bearings and ball bearings depends on the specific application requirements. Roller bearings excel in heavy-duty applications where high load capacity and durability are essential. They are commonly used in industries such as mining, construction, and heavy machinery. Ball bearings, with their lower friction and suitability for high-speed operation, are preferred in applications that prioritize speed, precision, and efficiency, such as electric motors, machine tools, and automotive components.

In conclusion, roller bearings and ball bearings have distinct characteristics and are suitable for different types of applications. Roller bearings offer higher load capacity and better load distribution, making them ideal for heavy-duty applications. Ball bearings, with their lower friction and ability to accommodate misalignment, are well-suited for high-speed and precision applications. The choice between roller bearings and ball bearings depends on factors such as load requirements, speed, application specificity, and alignment considerations.

China Standard KA035XP0 CZPT CE OEM chrome steel CZPT catalog ultra reali slim wall roller silverthin ball tapered thrust angular contact metric sleeve thin section bearings   ball bearingChina Standard KA035XP0 CZPT CE OEM chrome steel CZPT catalog ultra reali slim wall roller silverthin ball tapered thrust angular contact metric sleeve thin section bearings   ball bearing
editor by CX 2024-05-14

Roller Bearing

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