KB065AR0
5/16" Constant Section Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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KB065AR0 Bearing Product Overview & Core Advantages
The KB065AR0 is a high-performance thin section angular contact ball bearing designed for applications demanding exceptional precision and space optimization. This single row, open-type bearing excels in handling combined radial and axial loads simultaneously, thanks to its defined 30° contact angle. Manufactured to ABEC-1 precision standards, it offers reliable operation in high-speed scenarios. Its compact design, with a large 6.5" bore relative to its cross-section, makes it an ideal solution for weight-sensitive and compact machinery where high rigidity and accurate rotational performance are critical.
KB065AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KB | Indicates the bearing series, specifically a Reali-Slim angular contact type. |
| 065 | Represents the bore diameter in inches, which is 6.5". |
| A | Signifies the contact angle of 30°, optimized for handling significant axial loads. |
| R0 | Denotes the internal clearance group and specific design features for the Reali-Slim Open series. |
KB065AR0 Bearing Structural Features & Performance Benefits
- High Rigidity and Load Capacity: The single row angular contact design with a 30° contact angle provides high rigidity, enabling the bearing to support substantial combined loads. It offers a dynamic load rating of 1132 lbf and a static load rating of 3200 lbf.
- Precision Engineering: Manufactured to ABEC-1 tolerance class with tight bore and OD tolerances, ensuring smooth, precise, and low-vibration operation essential for high-speed applications.
- Optimized Material Selection: The use of Chrome Steel for rings and balls, combined with a Brass cage, ensures high strength, durability, and stable performance under demanding conditions.
- Space-Saving Design: As a thin section bearing, it provides a large bore (6.5") relative to its small cross-section (0.3125" width), maximizing design space in compact assemblies.
- Standard Lubrication: Comes pre-lubricated for immediate use, covering a broad temperature range from -30°C to 110°C.
KB065AR0 Bearing Typical Application Areas
The KB065AR0 is ideally suited for applications requiring high precision, compact design, and the ability to handle complex loads. Key industries and equipment include:
- Robotics: Joint and arm actuators
- Aerospace & Defense: Gimbals, radar systems, and control surfaces
- Semiconductor Manufacturing: Precision stages and wafer handling equipment
- Medical Equipment: MRI scanners and surgical robot arms
- Optical and Instrumentation: Rotary tables and scanning devices
