KB025AR0
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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KB025AR0 Bearing Product Overview & Core Advantages
The KB025AR0 is a thin-section angular contact ball bearing designed for applications requiring high precision and space optimization. This single-row bearing excels at handling combined loads, particularly significant axial loads in one direction, thanks to its defined 30° contact angle. Manufactured to ABEC-1 precision standards with an open design, it offers reliable performance in compact envelopes where weight reduction is critical, weighing only 0.19 lbs.
KB025AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KB | Indicates the manufacturer's series for thin-section bearings |
| 025 | Represents the bore diameter of 2.5 inches |
| A | Signifies Angular Contact design with 30° contact angle |
| R | Denotes Reali-Slim thin-section construction |
| 0 | Open (unsealed) configuration |
KB025AR0 Bearing Structural Features & Performance Benefits
Thin-Section Design: The bearing's compact cross-section (0.3125" width) enables space-saving solutions while maintaining performance in precision applications.
High Load Capacity: With a 30° contact angle, this bearing optimally handles combined radial and axial loads, featuring an axial static load rating of 1590 lbf and radial dynamic load rating of 675 lbf.
Precision Engineering: Manufactured to ABEC-1 tolerance class with tight dimensional controls (bore tolerance: -0.0006"–0") ensures consistent performance in demanding applications.
Premium Materials: Constructed with chrome steel rings and brass cage for durability and reliable operation across a temperature range of -30°C to 110°C.
KB025AR0 Bearing Typical Application Areas
This angular contact thin-section bearing is ideally suited for:
- Robotics and automation systems requiring compact, high-precision rotary components
- Aerospace and defense equipment where weight savings and reliability are critical
- Medical imaging and diagnostic equipment demanding precise motion control
- Semiconductor manufacturing equipment requiring high precision and compact design
- Optical positioning systems and precision instrumentation
