71932 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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71932 CDGA/HCP4A Bearing Product Overview & Core Advantages
The 71932 CDGA/HCP4A is a single row angular contact ball bearing engineered for applications demanding the highest levels of precision and performance. Positioned in the P4A super-precision tolerance class, it is designed to provide exceptional rotational accuracy and dimensional stability. A key feature is its Universal Matchable (SU) designation, allowing bearings to be supplied in pre-matched sets for optimal performance in duplex arrangements. The combination of a phenolic cage and ceramic balls enables superior high-speed capabilities and reduced rotational mass, making it ideal for high-rigidity, high-RPM applications.
71932 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
The model number 71932 CDGA/HCP4A provides detailed technical specifications through its suffixes:
- 71932: Basic bearing designation (160mm bore, 220mm OD, 28mm width).
- C: 15° contact angle, optimized for high-speed operation.
- D: Indicates the bearing is supplied as part of a universally matchable (SU) set.
- GA: Specifies an Extra Light (Class A) preload for minimal friction and high-speed operation.
- HC: Denotes the use of Hybrid Ceramic balls (steel rings with ceramic balls).
- P4A: The tolerance class, indicating super-precision levels exceeding ABEC 7 standards.
71932 CDGA/HCP4A Bearing Structural Features & Performance Benefits
The design of the 71932 CDGA/HCP4A delivers distinct performance advantages:
- High-Speed Performance & Thermal Stability: The lightweight phenolic cage and low-density ceramic balls significantly reduce centrifugal forces, enabling the bearing to achieve its high limiting speed of 11,000 rpm. The phenolic material also offers excellent dimensional stability across the operating temperature range.
- Super-Precision & Rigidity: Manufactured to P4A tolerance class with a 15° contact angle, this bearing provides exceptional running accuracy and axial rigidity, effectively handling combined loads.
- Universal Matching for Optimized Configurations: As a Universal Matchable (SU) bearing, it can be supplied in pre-ground sets (3 bearings in this case) for immediate installation in duplex arrangements (DB, DF, DT), ensuring optimal preload and system stiffness without additional machining.
- High Load Capacity: With a dynamic load rating of 29,250 lbf and a static load rating of 36,000 lbf, it offers reliable performance under demanding conditions.
71932 CDGA/HCP4A Bearing Typical Application Areas
This high-precision, high-speed bearing is ideally suited for advanced machinery and systems, including:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Grinding Spindles
- High-Frequency Motors and Spindles
- Aerospace & Defense Systems: Gyroscopes, navigation instruments.
- Medical Equipment: High-speed dental handpieces, imaging devices.
