7014 ACD/P4ADBC
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7014 ACD/P4ADBC Bearing Product Overview & Core Advantages
The 7014 ACD/P4ADBC is a precision duplex back-to-back angular contact ball bearing designed for applications requiring exceptional rigidity and accuracy. This P4A tolerance class bearing is pre-lubricated and features a moderate preload (Class C), making it ideal for machine tool spindles and other high-precision machinery where combined radial and axial loads must be managed with minimal deflection. Its duplex DB arrangement provides superior moment stiffness and stable rotational accuracy.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7014 | Basic bearing series: 70mm bore, 110mm OD, 40mm width |
| AC | Angular Contact design with 25° contact angle |
| D | Duplex Back-to-Back (DB) arrangement |
| P4A | High precision tolerance class (equivalent to ABEC 7) |
| DBC | Duplex Back-to-Back with moderate preload (Class C) |
7014 ACD/P4ADBC Bearing Structural Features & Performance Benefits
Enhanced Rigidity: The duplex back-to-back configuration creates a rigid bearing system that effectively resists moment loads and shaft deflection, crucial for maintaining precision under combined loading conditions.
Superior Load Capacity: With a 25° contact angle and optimized internal geometry, this bearing delivers excellent performance for both radial and axial loads, achieving dynamic load ratings of 17,842 lbf and static load ratings of 19,462 lbf.
High-Speed Capability: The phenolic cage material provides excellent strength-to-weight ratio, contributing to the bearing's ability to reach limiting speeds of 29,000 rpm while maintaining dimensional stability.
Precision Performance: Manufactured to P4A tolerance standards with tight dimensional controls (bore/OD tolerance: -0.004mm to 0), ensuring consistent high-precision operation in demanding applications.
7014 ACD/P4ADBC Bearing Typical Application Areas
- Machine Tool Spindles: High-precision milling, grinding, and turning centers requiring rigid bearing support
- Precision Gearboxes: Industrial transmission systems demanding accurate shaft positioning
- High-Speed Machining Centers: Applications where thermal stability and running accuracy are critical
- Robotic Arm Joints: Precision motion control systems requiring minimal deflection
- Medical Equipment: High-accuracy imaging systems and surgical devices
