7212 CD/HCP4ATGA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7212 CD/HCP4ATGA Bearing Product Overview & Core Advantages
The 7212 CD/HCP4ATGA is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. Featuring a universal matchable (SU) design, this bearing can be mounted in various configurations (back-to-back, face-to-face, or tandem) to optimize system performance. Its ceramic balls and P4A super precision tolerance deliver superior high-speed capability and minimal rotational runout, making it ideal for machine tool spindles and other high-accuracy rotational systems.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7212 | Basic bearing series: 60mm bore, 110mm OD, 66mm width |
| CD | 15° contact angle design with optimized internal geometry |
| HC | Hybrid ceramic balls for enhanced performance |
| P4A | Super precision tolerance class (exceeds ABEC 7) |
| TGA | Phenolic cage material and universal matchable designation |
7212 CD/HCP4ATGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: Silicon nitride ceramic balls provide significant advantages including reduced centrifugal forces, higher limiting speed (36,000 rpm), electrical insulation, and superior performance in high-temperature environments.
Precision Engineering: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional running accuracy and minimal vibration for high-speed applications.
Optimized Internal Geometry: The 15° contact angle and phenolic cage design deliver excellent high-speed stability while maintaining precise control over axial and radial loads.
Universal Matching Capability: As part of a matched set of 3 bearings, the SU designation allows for flexible mounting arrangements to achieve optimal preload and system stiffness.
7212 CD/HCP4ATGA Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and grinding spindles
- High-Speed Motors: Industrial motors and spindle drives requiring superior rotational accuracy
- Aerospace Systems: Critical rotating components in aircraft and defense applications
- Medical Equipment: High-speed dental handpieces and surgical tools
- Semiconductor Manufacturing: Precision wafer handling and processing equipment
