7001 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7001 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The 7001 CE/HCP4ADGA is a super-precision angular contact ball bearing engineered for applications demanding the highest levels of rotational accuracy and speed. Its ceramic ball construction and P4A tolerance class make it ideal for machine tool spindles and other high-performance equipment. This bearing is designed to handle combined loads efficiently, offering exceptional high rigidity and thermal stability. It comes pre-lubricated and is part of a universal matchable (SU) set, allowing for flexible mounting configurations in preloaded arrangements.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 7001 | Basic bearing series, indicating a 12mm bore, 28mm OD, and 16mm width. |
| C | Designates a 15° contact angle. |
| E | Indicates an optimized internal design for high-speed operation. |
| HC | Signifies the use of hybrid ceramic balls (silicon nitride). |
| P4A | Denotes an ultra-precision tolerance class superior to ABEC 7. |
| DGA | Specifies a universal matchable (SU) bearing designed for duplex mounting with an extra light preload (Class A). |
7001 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
- Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, lowers operating temperatures, and extends service life, especially at high speeds (up to 100,000 rpm dmn).
- Phenolic Resin Cage: This lightweight and robust cage material ensures excellent dimensional stability and low friction, contributing to smooth operation and high acceleration capabilities.
- Precision P4A Tolerance: Guarantees minimal runout and superior rotational accuracy, which is critical for applications like machine tool spindles.
- Universal Matchable Design (SU): Allows any two bearings to be mounted together in either a back-to-back or face-to-face arrangement to achieve a defined preload, simplifying inventory and assembly.
- Optimized Internal Geometry: The 15° contact angle provides an excellent balance between radial and axial load capacity.
7001 CE/HCP4ADGA Bearing Typical Application Areas
This super-precision bearing is ideally suited for high-performance machinery where speed, accuracy, and reliability are paramount. Key applications include:
- Machine Tool Spindles: High-speed milling, grinding, and turning centers.
- Precision Robotics: Arm joints and spindle drives.
- High-Frequency Motors and Spindles
- Medical Equipment: Dental handpieces and laboratory centrifuges.
- Aerospace Instrumentation: Gyroscopes and navigation systems.
