71914 CE/P4ADBB
71900 Series Super Precision Angular Contact Ball Bearings
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71914 CE/P4ADBB Bearing Product Overview & Core Advantages
The 71914 CE/P4ADBB is a super-precision angular contact ball bearing designed for the most demanding applications. Its duplex back-to-back (DB) arrangement and P4A tolerance class deliver exceptional rotational accuracy and system rigidity. This bearing is preloaded (Light / Class B) and pre-lubricated, enabling it to handle combined radial and axial loads simultaneously while ensuring high operational stability and long-term performance in high-speed, high-precision environments.
Model Code Breakdown
- 71914: Standard designation for a super-precision angular contact ball bearing series with a 70 mm bore.
- CE: Indicates a 15° contact angle and optimized internal design for high-speed operation.
- P4A: Denotes an ultra-precision tolerance class with even tighter running accuracy specifications than ABEC 7/P4.
- DB: Specifies the bearing set is supplied in a Duplex Back-to-Back matched arrangement.
- B: Indicates the specific light preload class applied to the matched set.
71914 CE/P4ADBB Bearing Structural Features & Performance Benefits
High Rigidity and Stability: The duplex back-to-back (DB) configuration creates a rigid bearing system that effectively resists moment loads, making it ideal for applications requiring high shaft positioning accuracy.
Superior Precision: Manufactured to a P4A tolerance class, this bearing guarantees minimal runout and vibration, which is critical for maintaining precision in spindle and other high-accuracy machinery.
Optimized High-Speed Performance: The phenolic resin cage and 15° contact angle are engineered for reduced friction and lower heat generation, supporting a high limiting speed of 28,000 rpm.
High Load Capacity: With a dynamic load rating of 8055 lbf and a static load rating of 7200 lbf, it is capable of sustaining significant combined loads.
71914 CE/P4ADBB Bearing Typical Application Areas
This bearing is engineered for high-performance applications where precision, speed, and rigidity are paramount. Typical uses include:
- Machine Tool Spindles (High-speed milling, grinding)
- Precision Grinding Spindles
- High-Frequency Motor Spindles
- High-Precision Rotary Tables
- Advanced Medical Equipment
- Aerospace Positioning Systems
