7012 CD/HCP4ADGB
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7012 CD/HCP4ADGB Bearing Product Overview & Core Advantages
The 7012 CD/HCP4ADGB is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This universal matchable (SU) bearing is designed to accommodate combined loads (radial and axial) simultaneously, making it ideal for high-rigidity applications. Its P4A tolerance class ensures superior running accuracy, while the ceramic balls and phenolic cage contribute to high-speed capability and reduced weight. Pre-loaded as a Light / Class B set, it delivers optimized stiffness and rotational precision right out of the box.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7012 | Basic bearing series and size designation (60mm bore, 95mm OD, 36mm width) |
| CD | 15° contact angle designation |
| HC | Hybrid Ceramic - indicates ceramic balls with steel rings |
| P4A | High precision tolerance class (superior to ABEC 7) |
| DGB | Universal matchable bearing set (back-to-back arrangement) |
7012 CD/HCP4ADGB Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride ceramic balls provides superior performance characteristics including reduced friction, higher speed capability, and extended service life, particularly in demanding operating conditions.
High Rigidity & Precision: Manufactured to P4A tolerance class standards, this bearing delivers exceptional running accuracy and dimensional stability. The light preload (Class B) ensures optimal stiffness while minimizing friction and heat generation.
Enhanced High-Speed Performance: The phenolic resin cage offers excellent strength-to-weight ratio, contributing to the bearing's ability to achieve limiting speeds of 33,000 rpm. The lightweight construction reduces centrifugal forces, enabling stable operation at high rotational velocities.
Universal Matching Capability: As a Universal Matchable (SU) bearing supplied in a set of two, these bearings can be arranged in various configurations (back-to-back, face-to-face, or tandem) to suit specific application requirements for rigidity and moment load capacity.
7012 CD/HCP4ADGB Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and milling applications requiring exceptional accuracy and rigidity
- High-Speed Motors: Electric motors and generators operating at elevated speeds where ceramic hybrid technology provides performance advantages
- Aerospace Systems: Critical rotating components in aircraft systems demanding reliability and high-speed capability
- Medical Equipment: High-speed dental handpieces, surgical tools, and medical imaging devices requiring precision and cleanliness
- Robotics & Automation: Precision robotic joints, CNC rotary tables, and automated manufacturing equipment
