71912 CDGB/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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71912 CDGB/P4A Bearing Product Overview & Core Advantages
The 71912 CDGB/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and reliability. Manufactured to P4A tolerance class with a 15° contact angle and light preload (Class B), this bearing delivers superior performance in applications demanding minimal runout and vibration. Its universal matchable (SU) design allows for flexible mounting arrangements in sets, enabling optimal stiffness and load distribution. The bearing comes pre-lubricated for immediate operation across a wide temperature range (-30°C to 110°C).
71912 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71912 | Basic bearing designation indicating ultra-light series with 60mm bore diameter |
| C | 15° contact angle optimized for combined loads |
| D | Light preload (Class B) for reduced deflection |
| G | Universal matching designation for flexible arrangement |
| B | Indicates specific internal geometry and tolerance |
| P4A | High-precision tolerance class with enhanced running accuracy |
71912 CDGB/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: The P4A tolerance class ensures minimal dimensional variation, providing exceptional running accuracy critical for high-speed applications.
Optimized Load Capacity: With a 15° contact angle, this bearing efficiently handles combined radial and axial loads, featuring a dynamic load rating of 4478 lbf and static load rating of 3442 lbf.
High-Speed Performance: The phenolic resin cage and precision-ground chrome steel components enable operation at limiting speeds up to 31,000 rpm.
Thermal Stability: The phenolic cage material provides excellent dimensional stability across the operating temperature range from -30°C to 110°C.
Compact Design: With dimensions of 60mm bore × 85mm OD × 13mm width and weight of only 0.19kg, this bearing offers space-saving solutions without compromising performance.
71912 CDGB/P4A Bearing Typical Application Areas
Machine Tool Spindles: Ideal for high-precision machining centers and grinding spindles requiring exceptional running accuracy.
High-Speed Motors: Suitable for electric motor applications demanding reliable performance at elevated speeds.
Precision Instrumentation: Used in measuring equipment and laboratory instruments where minimal vibration is critical.
Aerospace Components: Applied in aircraft auxiliary systems and navigation equipment requiring high reliability.
Medical Equipment: Employed in dental handpieces and surgical tools where precision and cleanliness are paramount.
