71936 CD/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
Ball & Washer Dimensions
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71936 CD/P4A Bearing Product Overview & Core Advantages
The 71936 CD/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to accommodate primarily radial loads combined with significant axial loads in one direction, this bearing features a 15° contact angle optimized for high-speed operation. Manufactured to P4 (ABEC-7) tolerance class, it delivers superior dimensional stability and minimal runout. Its phenolic resin cage ensures smooth operation at high rotational speeds while providing excellent strength-to-weight ratio. The bearing comes prelubricated and ready for installation in demanding industrial environments.
71936 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71936 | Basic bearing designation indicating dimensions (180mm bore × 250mm OD × 33mm width) |
| CD | Contact angle designation (15°) optimized for high-speed applications |
| P4A | Precision class designation (P4/ABEC-7) with specific tolerance enhancements |
71936 CD/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4 tolerance standards with bore diameter tolerance of -0.01mm to 0 and outside diameter tolerance of -0.011mm to 0, ensuring exceptional dimensional accuracy for high-precision applications.
Optimized Contact Design: The 15° contact angle provides optimal balance between radial and axial load capacity, making it ideal for applications requiring combined load support.
High-Speed Capability: The phenolic resin cage enables stable operation at limiting speeds up to 8,000 rpm, while the optimized ball complement (27 balls of 22.225mm diameter) ensures smooth rotation.
Superior Load Capacity: With dynamic load rating of 37,800 lbf and static load rating of 47,700 lbf, this bearing delivers reliable performance under demanding operating conditions.
Temperature Resilience: Operating temperature range of -30°C to 110°C ensures stable performance across various industrial environments.
71936 CD/P4A Bearing Typical Application Areas
- Machine tool spindles requiring high precision and rigidity
- High-speed machining centers and precision grinding equipment
- Industrial pumps and compressors demanding reliable bearing performance
- Precision instrumentation and measuring equipment
- Aerospace components requiring ABEC-7 precision standards
- Robotic positioning systems and automation equipment
