71916 ACDGB/P4A
71900 Series Super Precision Angular Contact Ball Bearings
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71916 ACDGB/P4A Bearing Product Overview & Core Advantages
The 71916 ACDGB/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Engineered to primarily accommodate combined loads (simultaneous radial and axial loads), this bearing features a 25° contact angle and P4A super-precision tolerance class, making it ideal for high-speed spindles and precision machinery. Its light preload (Class B) ensures minimal deflection under operational stresses, providing superior running accuracy and system stability.
71916 ACDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71916 | Basic bearing series designation for metric angular contact bearings |
| AC | Angular Contact design with 25° contact angle |
| D | High ball complement design for increased load capacity |
| GB | Universal Matchable bearing for paired mounting (SU designation) |
| P4A | Super precision tolerance class with enhanced running accuracy |
71916 ACDGB/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore and OD tolerance: -0.004mm to 0), ensuring exceptional running accuracy and minimal vibration in high-speed applications.
Enhanced Load Capacity: Features 27 chrome steel balls with 9.525mm diameter and phenolic resin cage, providing superior dynamic load rating (7762 lbf) and static load rating (8212 lbf) for demanding applications.
High-Speed Capability: The phenolic cage and optimized internal geometry enable limiting speeds up to 17,000 rpm, making it suitable for high-speed spindle applications.
Universal Matching Design: As a Universal Matchable (SU) bearing, it can be paired in sets of 3 to accommodate complex load conditions and provide preloaded arrangements for maximum system rigidity.
71916 ACDGB/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- Precision Instrumentation: Measuring equipment and optical devices
- High-Speed Motors: Industrial motors and servo drives
- Aerospace Components: Guidance systems and aircraft instrumentation
- Medical Equipment: Dental handpieces and surgical tools
