7014 CD/HCP4AQBCA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7014 CD/HCP4AQBCA Bearing Product Overview & Core Advantages
The 7014 CD/HCP4AQBCA is a high-precision quadruplex angular contact ball bearing designed for demanding applications requiring exceptional rigidity and accuracy. This matched set arrangement features four bearings in a back-to-back configuration (QBC), delivering superior stiffness and stability under combined loads. Manufactured to P4A tolerance class with ceramic balls and phenolic cage, it offers outstanding high-speed performance and thermal stability, making it ideal for ultra-precision machine tool spindles and other high-performance rotational systems.
7014 CD/HCP4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Performance Impact |
|---|---|---|
| 7014 | Basic bearing series with 70mm bore, 110mm OD | Standard bearing dimensions for consistent mounting |
| CD | 15° contact angle with optimized internal design | Enhanced axial load capacity and high-speed capability |
| HCP4A | P4A tolerance class with phenolic cage | Exceptional running accuracy and thermal stability |
| QBC | Quadruplex Back-to-Back arrangement | Maximum rigidity and moment load capacity |
7014 CD/HCP4AQBCA Bearing Structural Features & Performance Benefits
Quadruplex Back-to-Back Configuration: The four-bearing arrangement provides exceptional stiffness and resistance to moment loads, ensuring precise rotational accuracy even under heavy combined loads.
Advanced Material Selection: Ceramic balls (Si3N4) reduce centrifugal forces, lower friction, and enable higher operating speeds while phenolic cage offers excellent dimensional stability and reduced weight for high-speed applications.
Precision Engineering: Manufactured to P4A tolerance class with bore and outside diameter tolerances of -0.004mm to 0, ensuring precise fit and minimal runout for superior positioning accuracy.
Optimized Load Capacity: With a radial dynamic load rating of 30,375 lbf and radial static load rating of 41,175 lbf, this bearing set handles significant combined radial and axial loads while maintaining performance.
High-Speed Capability: The combination of ceramic balls, phenolic cage, and optimized internal geometry enables a limiting speed of 22,000 rpm, making it suitable for demanding spindle applications.
7014 CD/HCP4AQBCA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision boring machines
- Precision Robotics
- Aerospace Systems: Gyroscopes, navigation systems, and aircraft instrumentation
- Medical Equipment: High-speed dental handpieces, surgical robots, and imaging system rotors
- Semiconductor Manufacturing: Wafer handling robots, precision positioning stages, and inspection equipment
