KA042AR0
1/4" 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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KA042AR0 Bearing Product Overview & Core Advantages
The KA042AR0 is a high-precision thin section angular contact ball bearing designed for applications demanding exceptional space efficiency and high rotational accuracy. Manufactured to ABEC-1 tolerance standards, this single-row bearing excels in handling combined radial and axial loads simultaneously. Its compact cross-section (0.25" width) and inch-series dimensions make it ideal for weight-sensitive and space-constrained designs, providing reliable performance in precision machinery and instrumentation.
KA042AR0 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| KA042 | Bearing series designation for thin section angular contact bearings |
| A | 30° contact angle optimized for axial load capacity |
| R0 | Standard radial internal clearance designation |
KA042AR0 Bearing Structural Features & Performance Benefits
Optimized Thin-Section Design: With only 0.25" width and large 4.25" bore diameter, this bearing maximizes space utilization while maintaining structural integrity. The brass cage ensures stable ball guidance and smooth operation at moderate speeds.
High Load Capacity: Featuring a 30° contact angle, the bearing delivers excellent axial load capacity (1530 lbf static) while maintaining substantial radial load rating (616 lbf dynamic). This makes it suitable for applications experiencing combined loading conditions.
Precision Performance: Manufactured to ABEC-1 precision class with tight dimensional tolerances (±0.0008"), the bearing ensures consistent running accuracy and minimal vibration. The chrome steel construction provides durability and wear resistance across the operating temperature range of -30°C to 110°C.
KA042AR0 Bearing Typical Application Areas
- Robotics and Automation: Joint bearings in robotic arms and precision positioning systems
- Aerospace Systems: Guidance mechanisms, gimbal assemblies, and instrument bearings
- Medical Equipment: Scanner systems, diagnostic instruments, and surgical robotics
- Semiconductor Manufacturing: Wafer handling equipment and precision stages
- Optical and Imaging Systems: Rotary stages, mirror mounts, and precision turntables
