71907 CD/P4ATT
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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71907 CD/P4ATT Bearing Product Overview & Core Advantages
The 71907 CD/P4ATT is a precision angular contact ball bearing designed for high-performance applications. This triplex tandem matched set (3-DT) delivers exceptional axial load capacity and system rigidity through its precisely matched configuration. Manufactured to P4A tolerance class, it ensures superior running accuracy and rotational precision. The phenolic cage and optimized 15° contact angle enable reliable operation at high speeds up to 56,000 rpm, making it ideal for demanding precision machinery applications.
71907 CD/P4ATT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CD | 15° contact angle, optimized for high-speed applications | Enhanced high-speed performance and axial load capacity |
| P4A | High precision tolerance class | Superior running accuracy and rotational precision |
| TT | Triplex tandem arrangement (3 bearings) | Maximum axial load capacity in one direction |
71907 CD/P4ATT Bearing Structural Features & Performance Benefits
Triplex Tandem Configuration: Three bearings are precision-matched and arranged in tandem to provide maximum axial load capacity in one direction, ideal for applications requiring exceptional thrust load handling.
High-Precision Construction: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and rotational precision.
Optimized High-Speed Design: The 15° contact angle combined with a phenolic cage enables reliable operation at limiting speeds up to 56,000 rpm, reducing centrifugal forces and maintaining stability.
Preload Capability: Designed to accept preload, enhancing system rigidity and minimizing deflection under operational loads for improved positioning accuracy.
Premium Material Selection: Chrome steel rings and balls provide excellent wear resistance and fatigue life, while the phenolic cage offers superior strength and lubrication compatibility.
71907 CD/P4ATT Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles requiring exceptional rigidity and accuracy
- High-Speed Spindles: CNC machining centers, PCB drilling machines, and dental handpieces
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- Aerospace Components: Gyroscopes, navigation systems, and aircraft control mechanisms
- Robotic Systems: High-precision robotic arms and automation equipment requiring accurate positioning
