S71910 CD/P4A
Sealed Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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S71910 CD/P4A Bearing Product Overview & Core Advantages
The S71910 CD/P4A is a single-row angular contact ball bearing engineered for high-precision and high-speed applications. Its design is optimized to support significant combined loads, handling both radial forces and substantial axial loads in one direction. Manufactured to the exacting P4 (ABEC-7) tolerance class, this bearing delivers exceptional running accuracy and rotational stability. The combination of a phenolic cage, factory-applied lubrication, and sealed construction ensures reliable, long-lasting performance in demanding operational environments, making it an ideal choice for applications requiring high rigidity and minimal maintenance.
S71910 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
- S7: Indicates a series of high-precision angular contact ball bearings.
- 1910: Standard dimension series; 10 represents a 50mm bore diameter.
- C: Denotes a 15° contact angle, optimized for high-speed operation.
- D: Signifies that the bearing is supplied with a preload for enhanced rigidity and precise shaft positioning.
- P4A: Specifies the tolerance class P4 (ABEC-7), ensuring extremely tight dimensional and running accuracy.
S71910 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The single-row design with a 15° contact angle and factory-applied preload (D) provides superior system stiffness, minimizing deflection under load and ensuring precise rotational accuracy.
- Superior Load Capacity: Engineered to handle combined loads effectively, with a dynamic load rating of 3038 lbf and a static load rating of 2340 lbf.
- Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, while the precision-ground chrome steel components and optimized internal geometry contribute to a high limiting speed of 17,000 rpm.
- Sealed and Lubricated for Life: As a sealed and lubricated unit, the bearing is protected from contamination and is ready for immediate installation, offering long-term, maintenance-free operation within its specified temperature range.
S71910 CD/P4A Bearing Typical Application Areas
- Machine Tool Spindles
- High-Speed CNC Machining Centers
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Robotic Arm Joints and Drives
