S71912 CD/P4ADGA
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71912 CD/P4ADGA Bearing Product Overview & Core Advantages
The S71912 CD/P4ADGA is a super-precision angular contact ball bearing designed for the most demanding applications. Its metric dimensions (60mm bore, 85mm OD, 26mm width) and P4A tolerance class ensure exceptional running accuracy and system rigidity. As a universally matchable (SU) bearing, it can be mounted in any combination (back-to-back, face-to-face, or tandem) to create a preloaded duplex set capable of handling combined radial and axial loads simultaneously. The phenolic cage and optimized 15° contact angle contribute to its high-speed capabilities, making it an ideal solution for high-precision, high-rigidity spindle systems.
S71912 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
- S7: Super-precision bearing series
- 1912: Dimension series code (19: width series, 12: bore code for 60mm)
- C: 15° nominal contact angle
- D: Designates a duplex pair
- P4A: High precision tolerance class (exceeding ABEC 7/ISO P4)
- DGA: Universal matchable (SU) designation for duplex sets
S71912 CD/P4ADGA Bearing Structural Features & Performance Benefits
This bearing's performance stems from its optimized construction. The duplex pair configuration provides significantly increased system rigidity and moment load capacity compared to single bearings. The phenolic resin cage ensures quiet operation and excellent performance at the high limiting speed of 32,500 rpm. With a dynamic load rating of 7,178 lbf and static load rating of 6,975 lbf, it delivers reliable performance under demanding operating conditions. The universal matchable (SU) design allows for simplified mounting and optimal preload control in any configuration, while the chrome steel construction ensures long-term dimensional stability and wear resistance.
S71912 CD/P4ADGA Bearing Typical Application Areas
The S71912 CD/P4ADGA excels in applications requiring the highest levels of precision and speed, including: Machine tool spindles, High-frequency milling heads, Precision grinding spindles, Industrial robotics, Medical equipment spindles, and Aerospace positioning systems. Its combination of high rigidity, precision, and speed makes it particularly suitable for CNC machining centers and other high-performance manufacturing equipment.
