S7012 CD/HCP4ATT
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7012 CD/HCP4ATT Bearing Product Overview & Core Advantages
The S7012 CD/HCP4ATT is a precision angular contact ball bearing designed for the most demanding high-speed applications. This matched triplex tandem (3-DT) arrangement delivers exceptional system rigidity and axial load capacity. Featuring ceramic balls and a phenolic cage, it achieves superior limiting speeds while maintaining P4A super-precision tolerance. Preloaded and pre-lubricated, this bearing set is engineered for high reliability in critical spindle systems.
S7012 CD/HCP4ATT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CD | 15° contact angle, universal matching | Optimized for combined radial and axial loads |
| HC | Hybrid ceramic balls | Reduced centrifugal forces, higher speed capability |
| P4A | Super precision tolerance class | Exceptional running accuracy and minimal vibration |
| TT | Triplex tandem arrangement (3 bearings) | Maximum axial stiffness and load capacity |
S7012 CD/HCP4ATT Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: Silicon nitride balls significantly reduce weight and centrifugal forces, enabling limiting speeds up to 31,000 rpm while maintaining dimensional stability across the operating temperature range.
Triplex Tandem Configuration: Three bearings mounted in series provide exceptional axial rigidity and can withstand heavy thrust loads in one direction, making them ideal for preloaded spindle applications.
Phenolic Resin Cage: This lightweight, high-strength cage material offers excellent performance at high speeds with minimal friction, contributing to the bearing's high-speed capabilities.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls on bore, outside diameter, and width, ensuring precise fitment and optimal performance in precision machinery.
S7012 CD/HCP4ATT Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines
- Precision Robotics: High-precision robot arm joints and rotary tables requiring minimal deflection
- Aerospace Systems: Gyroscopes, navigation systems, and auxiliary power units
- Medical Equipment: Dental handpieces, laboratory centrifuges, and imaging system rotors
- High-Speed Motors: Spindle motors, turbochargers, and specialized electric motors
