BA1B 311585 A
Single Row Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Inner Ring Dimensions
Outer Ring Dimensions
Performance
Materials
Environment & Compliance
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BA1B 311585 A Bearing Product Overview & Core Advantages
The BA1B 311585 A is a single row angular contact ball bearing engineered for high-precision applications requiring exceptional rigidity and accurate rotational performance. Designed to accommodate combined loads (simultaneous radial and axial loads), its 40° contact angle provides superior axial load capacity. Manufactured to P6 (ABEC-3) tolerance class, this bearing ensures precise running accuracy and is ideal for high-reliability machinery. Its open design allows for custom lubrication schemes, while the nylon cage contributes to smooth operation at moderate speeds.
BA1B 311585 A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| BA1B | Manufacturer's series designation for this specific angular contact bearing family |
| 311585 | Bearing size designation (540mm bore × 630mm OD × 45mm width) |
| A | Indicates 30° contact angle (standard for this series, though this specific bearing has 40°) |
BA1B 311585 A Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The single row design with 40° contact angle provides optimal stiffness for combined loads, featuring a radial dynamic load rating of 58,500 lbf and static load rating of 135,000 lbf.
Precision Performance: Manufactured to P6 tolerance class with tight dimensional tolerances (bore: -0.04mm to 0, OD: -0.038mm to 0) ensuring precise shaft positioning and minimal runout.
Optimized Cage Design: The nylon cage reduces friction, enables smoother operation, and is suitable for the bearing's limiting speed of 0.9 × 1000 rpm.
Material Excellence: Constructed from chrome steel for both rings and balls, providing excellent wear resistance and durability across the operating temperature range of -30° to 110°C.
BA1B 311585 A Bearing Typical Application Areas
- Machine tool spindles requiring high precision and rigidity
- Industrial gearboxes and power transmission systems
- Large precision equipment and positioning systems
- Specialized machinery with combined load requirements
- High-performance rotational systems in manufacturing equipment
