71907 CDGB/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71907 CDGB/P4A Bearing Product Overview & Core Advantages
The 71907 CDGB/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and speed capability. Manufactured to P4A tolerance class, this bearing delivers superior dimensional stability and running accuracy. Its 15° contact angle and light preload (Class B) configuration make it ideal for applications demanding high rigidity and minimal deflection under combined loads. The phenolic cage ensures smooth operation at high speeds up to 56,000 rpm, while the universal matching capability allows for precise bearing arrangements in spindle assemblies.
71907 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71907 | Basic bearing designation indicating metric angular contact bearing series with 35mm bore, 55mm OD, and 10mm width |
| C | 15° contact angle design optimized for high-speed applications |
| D | Enhanced internal design for improved performance |
| G | Precision universal matching capability for flexible mounting arrangements |
| B | Light preload (Class B) for reduced deflection and enhanced rigidity |
| P4A | Super precision tolerance class with enhanced dimensional and running accuracy |
71907 CDGB/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: The P4A tolerance class ensures minimal dimensional variation and superior running accuracy, critical for high-speed applications. The phenolic cage provides excellent strength-to-weight ratio and smooth operation at extreme rotational speeds.
High-Speed Capability: With a limiting speed of 56,000 rpm, this bearing features optimized internal geometry and cage design to minimize friction and heat generation. The 15° contact angle balances axial and radial load capacity while maintaining high-speed performance.
Load Capacity & Rigidity: The single-row angular contact design with 21 precision balls provides excellent combined load capacity (radial dynamic load: 2194 lbf, static load: 1474 lbf). The light preload configuration enhances system rigidity while minimizing friction and heat generation.
Universal Matching: As a universal matchable bearing, the 71907 CDGB/P4A can be paired in various arrangements (back-to-back, face-to-face, or tandem) to meet specific application requirements for stiffness and load distribution.
71907 CDGB/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision milling applications
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory devices
- High-Speed Motors: Spindle motors, high-frequency motors, and precision drive systems
- Aerospace Components: Gyroscopes, navigation systems, and aircraft instrumentation
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
- Robotics & Automation: Precision robotic joints, CNC positioning systems, and automated assembly equipment
