7005 CD/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
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7005 CD/P4A Bearing Product Overview & Core Advantages
The 7005 CD/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. This metric bearing features a 15° contact angle and is supplied with P4 (ABEC-7) precision tolerance, making it ideal for applications demanding minimal runout and vibration. Its key advantage lies in its ability to accommodate combined loads—effectively handling substantial radial loads and simultaneous one-direction axial loads. The phenolic cage and optimized internal geometry contribute to stable high-speed operation, while the available preload enhances system stiffness for improved positional accuracy.
7005 CD/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7005 | Basic bearing series with 25 mm bore, 47 mm OD, 12 mm width |
| CD | Contact angle of 15° and optimized internal design for high rigidity |
| P4A | P4 precision grade (ABEC-7) with specific tolerance enhancements |
7005 CD/P4A Bearing Structural Features & Performance Benefits
- High Rigidity & Precision: The single-row angular contact design with 15° contact angle provides optimized load distribution. Combined with P4 tolerance class and available preload, this ensures exceptional system stiffness and minimal deflection under load.
- Superior Load Capacity: Engineered to handle combined radial and axial loads simultaneously. The bearing's dynamic load rating of 2151 lbf and static load rating of 1170 lbf demonstrate its robust performance in demanding conditions.
- High-Speed Capability: The phenolic resin cage reduces centrifugal forces and friction, enabling a limiting speed of 56,000 rpm. This makes it suitable for high-speed spindle applications and precision machinery.
- Optimized Material Selection: Constructed from chrome steel for both rings and balls, ensuring high durability and wear resistance. The phenolic cage provides excellent dimensional stability across the operating temperature range of -30°C to 110°C.
7005 CD/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC milling machines
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- High-Speed Rotating Systems: Dental handpieces, small motors, and turbochargers
- Robotics & Automation: Robot arm joints, precision positioning systems, and servo motors
- Aerospace Components: Guidance systems, avionics, and auxiliary power units
