71910 ACDGA/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71910 ACDGA/P4A Bearing Product Overview & Core Advantages
The 71910 ACDGA/P4A is a high-precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this metric bearing features a 25° contact angle and an Extra Light (A) preload, making it ideal for high-speed spindles and precision machinery. Its open design allows for optimized lubrication management, contributing to superior performance under combined radial and axial loads. The bearing is universally matchable (SU), enabling precise axial play adjustment when mounted with other bearings.
71910 ACDGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71910 | Basic bearing series and size designation |
| AC | Angular Contact design with 25° contact angle |
| D | High precision bearing designation |
| GA | Universal Matchable (SU) bearing for flexible mounting arrangements |
| P4A | Super precision tolerance class with enhanced running accuracy |
71910 ACDGA/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional running accuracy and minimal vibration.
Optimized Load Capacity: The 25° contact angle provides excellent performance for combined loads, with a dynamic radial load rating of 2858 lbf and static radial load rating of 2205 lbf.
High-Speed Capability: Features a phenolic resin cage that enables operation at limiting speeds up to 46,000 rpm, making it suitable for high-speed applications.
Premium Material Quality: Constructed from chrome steel for both rings and balls (6.35mm diameter), providing superior durability and fatigue resistance.
Universal Matching Design: As part of a 3-bearing matched set, allows for precise preload adjustment and optimal performance in complex bearing arrangements.
71910 ACDGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding machines
- Precision Instrumentation: Measuring equipment and laboratory instruments requiring exceptional accuracy
- High-Speed Motors: Spindle motors and high-frequency electric motors
- Aerospace Components: Gyroscopes and navigation system components
- Medical Equipment: Dental handpieces and surgical tool drives
