7016 ACD/P4ADBB
7000 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
Ball & Washer Dimensions
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7016 ACD/P4ADBB Bearing Product Overview & Core Advantages
The 7016 ACD/P4ADBB is a precision duplex angular contact ball bearing designed for applications requiring exceptional rotational accuracy and high rigidity. This metric bearing features a back-to-back (DB) matched arrangement and a P4A super-precision tolerance class, making it ideal for machine tool spindles and other high-performance machinery. Its key advantage lies in its ability to support combined loads (radial and axial) simultaneously while maintaining high operational stability and stiffness under demanding conditions.
7016 ACD/P4ADBB Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7016 | Basic bearing series with 80 mm bore, 125 mm OD, 44 mm width |
| AC | Angular Contact design with 25° contact angle |
| D | Duplex bearing (two bearings supplied as a set) |
| P4A | Super-precision tolerance class with enhanced running accuracy |
| DBB | Back-to-Back arrangement for high moment stiffness |
7016 ACD/P4ADBB Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The duplex back-to-back (DB) configuration provides exceptional resistance to moment loads and tilting moments, ensuring high system stiffness. With a 25° contact angle and optimized internal geometry, this bearing effectively handles combined radial and axial loads, featuring a dynamic load rating of 22,725 lbf and static load rating of 26,100 lbf.
Precision Performance: Manufactured to P4A tolerance class with tight dimensional controls (bore/OD tolerance: -0.004mm to 0), this bearing delivers superior running accuracy and minimal vibration. The phenolic resin cage ensures smooth operation at high speeds while reducing friction and heat generation.
Optimized for High-Speed Applications: The combination of precision-ground chrome steel components, phenolic cage, and proper internal clearance enables operation at limiting speeds up to 28,000 rpm. The bearing comes pre-lubricated for immediate installation and reliable performance within a temperature range of -30°C to 110°C.
7016 ACD/P4ADBB Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers, grinding spindles
- Precision Instrumentation - Measuring equipment, optical devices
- High-Speed Rotating Machinery - Dental handpieces, small turbines
- Robotics - Precision robot joints, rotary tables
- Aerospace Components - Guidance systems, actuator mechanisms
