7010 ACBGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
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7010 ACBGA/HCP4A Bearing Product Overview & Core Advantages
The 7010 ACBGA/HCP4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and speed capability. Manufactured to P4A tolerance class, this bearing is designed to handle significant axial loads in one direction while supporting combined radial and axial loads. Its construction with ceramic balls and a phenolic cage enables superior high-speed performance and reduced rotational inertia. The bearing comes pre-lubricated and is universally matchable, allowing for precise axial preload control when mounted in pairs, making it ideal for demanding, high-rigidity spindle configurations.
7010 ACBGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7010 | Basic bearing designation (50mm bore, 80mm OD, 16mm width) |
| AC | Angular Contact design |
| B | 40° contact angle (standard for this series) |
| GA | Universal Matchable bearing, supplied in a pair with controlled preload |
| HC | Hybrid Ceramic (Silicon Nitride balls with steel rings) |
| P4A | High-Precision Tolerance Class (superior to ABEC 7) |
7010 ACBGA/HCP4A Bearing Structural Features & Performance Benefits
- High-Speed Capability: The combination of lightweight ceramic balls and a phenolic resin cage significantly reduces centrifugal forces and friction, enabling a high limiting speed of 46,000 rpm.
- High Rigidity & Load Capacity: The 25° contact angle and precision-ground raceways provide excellent support for combined loads, with a high dynamic load rating for its compact bearing dimensions.
- Precision & Accuracy: Manufactured to P4A tolerance class with tight dimensional control on bore, outside diameter, and width, ensuring minimal runout and vibration for superior machine tool accuracy.
- Universal Matching (SU): Bearings are supplied as a matched set of 2, allowing for simplified installation and optimal preload ("Extra light / Class A") to achieve maximum system stiffness and performance.
- Operating Range: The hybrid construction and lubrication provide a reliable temperature range from -30°C to 110°C.
7010 ACBGA/HCP4A Bearing Typical Application Areas
This high-precision angular contact ball bearing is ideally suited for applications demanding high speed, rigidity, and accuracy, including:
- Machine Tool Spindles: High-speed CNC milling, grinding, and turning centers.
- Precision Spindles: PCB drilling machines, high-frequency routers.
- High-Speed Motors: Motors and drives for aerospace and semiconductor manufacturing equipment.
- Robotics: High-precision robotic arm joints and rotary actuators.
