S7009 CB/HCP4A
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Free shipping on orders over $200
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S7009 CB/HCP4A Bearing Product Overview & Core Advantages
The S7009 CB/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and rigidity. This sealed single bearing features a 15° contact angle and is supplied with a preload, making it ideal for setups where high stiffness and minimal axial/radial runout are critical. Its construction with ceramic balls and a phenolic cage enables superior high-speed performance up to 30,000 rpm, while the integrated seals and factory-applied lubrication ensure long-term, maintenance-free operation. This bearing is designed to handle combined loads efficiently, providing a reliable solution for high-precision spindles and machinery.
Model Code Breakdown
| Model Segment | Technical Meaning |
|---|---|
| S7009 | Basic bearing series and size designation (45mm bore, 75mm OD). |
| CB | Specific internal design and clearance for preload application. |
| HC | Indicates the use of Hybrid Ceramic balls (steel rings with ceramic balls). |
| P4 | Specifies the high-precision tolerance class (ABEC-7 / ISO P4). |
| Sealed / Lubricated | The bearing comes with integrated contact seals and is pre-lubricated for life. |
S7009 CB/HCP4A Bearing Structural Features & Performance Benefits
- High Rigidity and Precision: The P4 (ABEC-7) tolerance class and applied preload ensure extremely low runout and high system stiffness, which is vital for precise positioning and machining accuracy.
- Superior High-Speed Capability: The combination of ceramic balls (lower density, reduced centrifugal force) and a lightweight phenolic cage significantly lowers friction and heat generation, enabling stable operation at the limiting speed of 30,000 rpm.
- Enhanced Load Capacity: The 15° contact angle is optimized to handle substantial combined radial and axial loads simultaneously, with a dynamic load rating of 2151 lbf and a static load rating of 1620 lbf.
- Maintenance-Free Operation: Equipped with seals and pre-lubricated, this bearing is protected from contamination and is designed for long service life without the need for re-lubrication within its specified temperature range of -30°C to 110°C.
S7009 CB/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and CNC milling machines.
- Precision Instruments: Measuring devices, optical scanners, and laboratory equipment.
- High-Speed Motors and Drives: Servo motors, spindle drives, and turbo-molecular pumps.
- Advanced Robotics: Joints and actuators requiring high precision and responsiveness.
