71914 CB/P4A
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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71914 CB/P4A Bearing Product Overview & Core Advantages
The 71914 CB/P4A is a single-row angular contact ball bearing designed for applications demanding high precision and superior performance. Engineered to a P4 (ABEC-7) tolerance class, it offers exceptional running accuracy. Its primary function is to support combined loads, efficiently handling significant radial loads and axial loads in one direction simultaneously. The bearing comes preloaded from the factory, ensuring high system rigidity, precise shaft positioning, and reduced noise and vibration during operation. Its compact design and high limiting speed make it an ideal choice for high-speed, high-reliability machinery.
71914 CB/P4A Bearing Model Code Explained, Specifications & Naming Convention
- 71914: Denotes the bearing series and size (70mm bore, 100mm OD, 16mm width).
- C: Indicates a 15° contact angle, optimized for high-speed applications.
- B: Signifies a moderate preload applied to the bearing, enhancing rigidity.
- P4A: Specifies the tolerance class. P4 is equivalent to ABEC-7, indicating very high precision. The 'A' suffix may denote specific internal design or clearance parameters.
71914 CB/P4A Bearing Structural Features & Performance Benefits
- High Precision and Rigidity: Manufactured to a P4 tolerance class and supplied with a factory preload, this bearing delivers exceptional running accuracy and high system rigidity, minimizing deflection under load.
- Superior Load Capacity: The 15° contact angle and robust construction enable it to support high radial dynamic load ratings (3105 lbf) and axial loads simultaneously.
- Optimized High-Speed Performance: The lightweight phenolic resin cage and optimized internal geometry contribute to a high limiting speed of 28,000 rpm, reducing centrifugal forces and friction.
- Premium Materials: Constructed from chrome steel for both rings and balls, ensuring high durability, wear resistance, and a long operational lifespan.
71914 CB/P4A Bearing Typical Application Areas
- Machine Tool Spindles
- High-Frequency Motors
- Precision Grinding Spindles
- High-Speed Pumps and Compressors
- Aerospace and Defense Instrumentation
