7012 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7012 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The 7012 CE/HCP4ADGA is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing features a 15° contact angle and P4A tolerance class for superior running accuracy. Its ceramic ball construction and phenolic cage enable outstanding high-speed capabilities with a limiting speed of 34,000 rpm, while the extra light preload (Class A) ensures minimal friction and optimal stiffness for precision applications.
7012 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Benefit |
|---|---|---|
| 7012 | Standard bearing series with 60mm bore, 95mm OD | Standard bearing dimensions for easy integration |
| CE | Ceramic balls (Silicon Nitride) | Enhanced high-speed performance, reduced friction, and longer service life |
| HC | Phenolic resin cage | Excellent high-speed stability and reduced weight |
| P4A | High precision tolerance class | Superior running accuracy and minimal vibration |
| DGA | Universal matchable (SU) designation | Flexible mounting arrangements in matched sets |
7012 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
High-Speed Optimization: The combination of ceramic balls and phenolic cage significantly reduces centrifugal forces and friction, enabling exceptional performance at limiting speeds up to 34,000 rpm. This makes it ideal for high-speed spindle applications.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional controls (bore tolerance: -0.004mm to 0), this bearing delivers superior running accuracy and minimal runout for precision applications.
Universal Matching Capability: As a universal matchable (SU) bearing, the 7012 CE/HCP4ADGA can be mounted in various preload configurations when used in matched sets of 2 bearings, providing design flexibility for optimal stiffness and load distribution.
Enhanced Load Capacity: With a 15° contact angle and robust construction, this angular contact bearing effectively handles combined loads including radial and axial forces in one direction, while the extra light preload ensures smooth operation with minimal friction.
7012 CE/HCP4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision milling applications
- High-Speed Motors: Electric motor spindles, servo motors, and high-frequency drives
- Precision Instruments: Measuring equipment, optical instruments, and laboratory apparatus
- Aerospace Components: Gyroscopes, navigation systems, and aircraft instrumentation
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
