7012 ACEGA/HCP4AL
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7012 ACEGA/HCP4AL Bearing Product Overview & Core Advantages
The 7012 ACEGA/HCP4AL is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered with ceramic balls and manufactured to P4A super precision tolerance, this bearing delivers superior high-speed capability and rigidity. Its 25° contact angle and Universal Matchable (SU) design enable it to handle combined radial and axial loads efficiently in preloaded arrangements. The phenolic cage and open seal configuration make it ideal for high-speed spindles and precision machinery where maximum rotational accuracy is critical.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7012 | Basic bearing series with 60mm bore diameter |
| AC | Angular Contact design with 25° contact angle |
| EGA | Extra light preload (Class A) with Universal Matchable (SU) designation |
| HC | Hybrid Ceramic construction with ceramic balls |
| P4A | Super precision tolerance class with enhanced running accuracy |
7012 ACEGA/HCP4AL Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear, enabling exceptional high-speed performance up to 33,000 rpm.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore tolerance: -0.004mm to 0), ensuring minimal runout and vibration for superior rotational accuracy.
Optimized Load Capacity: The 25° contact angle provides excellent combined load handling capability, with dynamic radial load rating of 3668 lbf and static radial load rating of 2745 lbf.
High-Speed Phenolic Cage: The phenolic resin cage offers excellent strength-to-weight ratio, reduced centrifugal forces, and compatibility with high-speed applications while providing smooth operation.
Universal Matching Design: As a Universal Matchable (SU) bearing supplied in sets of 2, it enables easy creation of preloaded bearing arrangements without selective matching.
7012 ACEGA/HCP4AL Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision milling applications
- Precision Instrumentation: Measuring equipment, coordinate measuring machines, and optical instruments
- High-Speed Motors: Servo motors, spindle motors, and high-frequency electric motors
- Aerospace Components: Gyroscopes, navigation systems, and aircraft instrumentation
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
