71910 CD/P4ADGB
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 CD/P4ADGB Bearing Product Overview & Core Advantages
The 71910 CD/P4ADGB is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. Manufactured to P4A tolerance class, this bearing excels in high-precision machinery. Its 15° contact angle and Universal Matchable (SU) design enable it to handle combined radial and axial loads efficiently. The bearing comes pre-lubricated and is part of a matched set of 2, ensuring optimal performance and simplified installation in high-rigidity applications.
71910 CD/P4ADGB Bearing Model Code Explained, Specifications & Naming Convention
- 71910: Basic designation for a high-precision angular contact ball bearing series with 50mm bore, 72mm OD, and 24mm width
- C: 15° contact angle design
- D: Light preload (Class B)
- P4A: High precision tolerance class exceeding ABEC 7 standards
- DGB: Universal Matchable (SU) bearing set, supplied as a matched pair
71910 CD/P4ADGB Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring minimal runout and superior rotational accuracy for precision applications.
Optimized Load Capacity: The 15° contact angle design provides excellent performance for combined loads, with dynamic load rating of 4972 lbf and static load rating of 4680 lbf.
High-Speed Capability: Features a phenolic cage and optimized internal geometry, enabling operation at limiting speeds up to 46,000 rpm while maintaining stability.
Matched Set Performance: As a Universal Matchable (SU) pair, these bearings provide pre-determined axial clearance and optimal load distribution when mounted face-to-face or back-to-back.
Premium Materials: Constructed from chrome steel for both rings and balls, ensuring durability and long service life in demanding applications.
71910 CD/P4ADGB Bearing Typical Application Areas
The 71910 CD/P4ADGB is ideally suited for high-precision, high-speed applications including:
- Machine tool spindles requiring exceptional rotational accuracy
- High-speed machining centers and precision grinding equipment
- Industrial pumps and compressors operating at elevated speeds
- Precision instruments and measuring equipment
- Robotic systems and automation equipment
- Aerospace components demanding reliable high-speed operation
