71910 ACDTP/P4B
71900 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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71910 ACDTP/P4B Bearing Product Overview & Core Advantages
The 71910 ACDTP/P4B is a single-row angular contact ball bearing designed for applications requiring high precision and superior rigidity. Engineered to accommodate combined loads (radial and axial loads in one direction), this bearing features a 25° contact angle for optimal axial load capacity. Manufactured to P4 (ABEC-7) tolerance class, it delivers exceptional running accuracy and rotational stability. The phenolic cage and preloaded design ensure smooth operation at high speeds while maintaining dimensional stability under demanding conditions.
71910 ACDTP/P4B Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Impact |
|---|---|---|
| 71910 | Basic bearing series with 50mm bore diameter | Standard dimension reference |
| AC | Angular Contact design | Optimized for combined radial and axial loads |
| D | High contact angle (25°) | Enhanced axial load capacity |
| TP | Phenolic (synthetic resin) cage | Reduced friction, suitable for high-speed applications |
| P4B | P4 tolerance class with modified internal clearance | Ultra-precision performance with controlled internal fit |
71910 ACDTP/P4B Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4 tolerance class with bore diameter tolerance of -0.006mm to 0 and outside diameter tolerance of -0.007mm to 0, ensuring exceptional dimensional accuracy and running precision.
Optimized Contact Design: The 25° contact angle provides superior axial load capacity while maintaining excellent radial load performance, making it ideal for applications requiring combined load support.
High-Speed Capability: The phenolic cage offers excellent strength-to-weight ratio and smooth operation, contributing to the bearing's limiting speed of 16,000 rpm. The cage design minimizes friction and heat generation during high-speed rotation.
Enhanced Rigidity: The single-row design with preload availability enables precise adjustment of internal clearance, resulting in improved system stiffness and reduced vibration in precision applications.
Premium Material Selection: Constructed from chrome steel for both rings and balls, providing excellent wear resistance and fatigue life. The bearing is factory-lubricated for immediate operation within a temperature range of -30° to 110°C.
71910 ACDTP/P4B Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles requiring exceptional running accuracy
- Precision Instrumentation: Measuring equipment and laboratory instruments demanding minimal vibration
- High-Speed Motors: Electric spindle applications and high-RPM motor systems
- Medical Equipment: Dental handpieces and surgical tools requiring reliable high-speed performance
- Aerospace Components: Guidance systems and auxiliary power units where precision and reliability are critical
- Robotics and Automation: Precision joints and positioning systems in industrial robots
