7012 ACBGA/HCP4AL
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7012 ACBGA/HCP4AL Bearing Product Overview & Core Advantages
The 7012 ACBGA/HCP4AL is a single-row angular contact ball bearing engineered for ultra-high precision and superior performance in demanding applications. Featuring a 25° contact angle and P4A tolerance class, this bearing is optimized to handle significant combined radial and axial loads simultaneously. Its ceramic balls and phenolic cage contribute to high-speed capability and reduced weight, while the extra light preload (Class A) ensures minimal friction and precise rotational accuracy. This bearing is universally matchable (SU), allowing for flexible arrangement in sets to meet specific stiffness and load requirements.
7012 ACBGA/HCP4AL Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7012 | Basic bearing designation: 60mm bore, 95mm OD, 18mm width |
| AC | Angular Contact design |
| BGA | Ceramic balls and phenolic cage combination |
| HCP4AL | High precision tolerance class (P4A) with extra light preload |
7012 ACBGA/HCP4AL Bearing Structural Features & Performance Benefits
Advanced Material Construction: The combination of chrome steel rings with ceramic balls provides exceptional wear resistance and thermal stability, enabling operation at limiting speeds up to 39,000 rpm. The phenolic cage offers excellent strength-to-weight ratio and reduced centrifugal forces at high speeds.
Precision Engineering: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, this bearing ensures precise fitment and minimal runout. The 25° contact angle is optimized for handling substantial axial loads while maintaining excellent radial load capacity.
Universal Matching Capability: As a universally matchable bearing, the 7012 ACBGA/HCP4AL can be arranged in various configurations (back-to-back, face-to-face, or tandem) to create customized bearing sets that meet specific application requirements for stiffness and load distribution.
Performance Specifications: With a dynamic load rating of 3038 lbf and static load rating of 2565 lbf, this bearing delivers reliable performance under demanding operating conditions. The open design allows for customized lubrication schemes to optimize performance across the temperature range of -30°C to 110°C.
7012 ACBGA/HCP4AL Bearing Typical Application Areas
- High-speed machine tool spindles requiring precision and thermal stability
- Precision grinding machines and machining centers
- Aerospace components including turbine systems and flight control mechanisms
- Medical equipment such as high-speed dental handpieces and surgical tools
- Semiconductor manufacturing equipment requiring ultra-clean, high-speed operation
- Robotic systems and precision automation equipment
- High-performance pumps and compressors operating at elevated speeds
