7001 CD/HCP4A
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7001 CD/HCP4A Bearing Product Overview & Core Advantages
The 7001 CD/HCP4A is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional accuracy and performance. This single-row bearing is distinguished by its ceramic balls and P4 (ABEC-7) tolerance class, ensuring ultra-low noise and vibration levels. Its primary advantage lies in its ability to handle high-speed operations and combined loads with superior reliability. The 15° contact angle is optimized for carrying significant axial loads in one direction, while also supporting radial loads, making it an ideal component for high-rigidity and high-speed spindle systems.
7001 CD/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning |
|---|---|
| CD | Indicates a duplex (matched) pair configuration with a specific preload. This arrangement provides increased system rigidity and precise rotational accuracy. |
| HCP4A | Denotes the bearing's high-performance specifications. HC signifies Hybrid Ceramic construction (steel rings with ceramic balls). P4 is the super-precision tolerance class (ABEC-7). A indicates a 15° contact angle. |
7001 CD/HCP4A Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperature, and extends service life, especially in high-speed applications.
- Super-Precision P4 Tolerance: Manufactured to P4 (ABEC-7) standards, this bearing ensures minimal runout and vibration, which is critical for achieving the highest levels of machining and operational accuracy.
- Phenolic Resin Cage: The lightweight and robust phenolic cage offers excellent dimensional stability and low friction, contributing to the bearing's high limiting speed of 120,000 rpm.
- Optimized Preload: The CD duplex arrangement comes with a controlled preload, eliminating internal clearance to enhance system stiffness and improve positional accuracy under load.
- High Load Capacity: With a dynamic load rating of 1010 lbf, this bearing is designed to handle significant combined loads (axial and radial) reliably.
7001 CD/HCP4A Bearing Typical Application Areas
This high-precision, high-speed bearing is ideally suited for advanced machinery and equipment where accuracy and rotational performance are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and high-accuracy servo motors.
- Medical and Dental Equipment: High-speed handpieces and scanners.
- Aerospace Instrumentation: Gyroscopes and navigation systems.
- Semiconductor Manufacturing: Wafer handling robots and precision stages.
