71930 ACD/HCP4ADGAGMM1
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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71930 ACD/HCP4ADGAGMM1 Bearing Product Overview & Core Advantages
The 71930 ACD/HCP4ADGAGMM1 is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and reliability. Engineered to accommodate combined loads (simultaneous radial and axial loads), this bearing features a 25° contact angle for optimal axial load capacity. Its universal matchable (SU) design allows two bearings to be paired in any combination to achieve specific preload or clearance requirements. Manufactured to P4A tolerance class, it delivers superior running accuracy, making it ideal for high-speed and high-precision applications. The use of ceramic balls and phenolic cage further enhances its performance in demanding environments.
71930 ACD/HCP4ADGAGMM1 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 71930 | Basic bearing series and size designation |
| ACD | 25° contact angle and optimized internal design |
| HCP4A | P4A tolerance class (high precision) |
| DG | Universal matchable (SU) designation |
| AGMM1 | Preload code: Extra light (Class A) |
71930 ACD/HCP4ADGAGMM1 Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance class with tight dimensional control (bore and OD tolerance: -0.004mm to 0), ensuring exceptional running accuracy and minimal vibration.
Advanced Material Combination: Features ceramic balls that reduce centrifugal forces, lower friction, and provide electrical insulation, combined with a phenolic cage that offers excellent dimensional stability and low friction at high speeds.
Superior Load Capacity: With a radial dynamic load rating of 40,050 lbf and radial static load rating of 56,250 lbf, this bearing reliably handles significant combined loads while maintaining precision.
High-Speed Capability: The ceramic ball and phenolic cage combination enables a limiting speed of 11,000 rpm, making it suitable for demanding high-speed applications.
Universal Matching Flexibility: The SU designation allows two bearings to be universally matched in any combination, providing flexibility in achieving specific preload conditions for optimal system performance.
71930 ACD/HCP4ADGAGMM1 Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- High-Speed Motors: Precision electric motors and servo drives
- Aerospace Systems: Aircraft auxiliary systems and precision mechanisms
- Medical Equipment: High-speed dental handpieces and surgical tools
- Semiconductor Manufacturing: Precision positioning stages and wafer handling equipment
