7012 FE/HCP4ADBA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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Product Overview and Core Advantages
The 7012 FE/HCP4ADBA is a precision angular contact ball bearing designed for applications demanding exceptional accuracy and high-speed performance. This duplex back-to-back (DB) matched set features an extra light preload (Class A), providing superior rotational accuracy and system rigidity. Its construction with ceramic balls and a phenolic cage enables operation at high limiting speeds while maintaining dimensional stability under varying thermal conditions. This bearing is engineered to handle combined loads efficiently, making it ideal for high-precision, high-reliability machinery.
7012 FE/HCP4ADBA Bearing Model Code Explained, Specifications & Naming Convention
- 7012: Basic bearing series and size designation (60mm bore, 95mm OD, 36mm width)
- F: Precision class designation
- E: Preload specification (Extra light/Class A)
- HC: Hybrid Ceramic construction (steel rings with ceramic balls)
- P4A: Tolerance class P4A, indicating ultra-precision manufacturing standards
- DB: Duplex Back-to-Back arrangement for improved moment load capacity
- A: Specific internal design and contact angle (18°)
Structural Features and Performance Benefits
Hybrid Ceramic Design: The combination of chrome steel rings and ceramic balls significantly reduces friction, heat generation, and wear, enabling higher limiting speeds (34,000 rpm) and extended service life.
Precision Construction: Manufactured to P4A tolerance class with tight dimensional controls (bore/OD tolerance: -0.004mm to 0), ensuring exceptional running accuracy and system performance.
Duplex Back-to-Back Arrangement: This matched bearing set provides increased rigidity and moment load capacity, making it suitable for applications requiring precise shaft positioning and stability under combined loads.
Phenolic Cage: The lightweight, durable cage contributes to smooth operation at high speeds and provides excellent performance across the specified temperature range (-30°C to 110°C).
7012 FE/HCP4ADBA Bearing Typical Application Areas
The 7012 FE/HCP4ADBA is specifically designed for high-performance applications including:
- Machine tool spindles requiring high precision and rigidity
- High-speed machining centers and precision grinding equipment
- Medical equipment and dental handpieces
- Aerospace components and precision instruments
- Robotics and automation systems demanding accuracy and reliability
