7001 ACDGA/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
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7001 ACDGA/HCP4A Bearing Product Overview & Core Advantages
The 7001 ACDGA/HCP4A is a single-row angular contact ball bearing engineered for ultra-high precision and superior performance in demanding applications. Its defining characteristic is the 25° contact angle and P4A tolerance class, ensuring exceptional running accuracy and dimensional stability. This bearing is designed to accommodate high combined loads (radial and axial) in one direction, making it ideal for high-speed spindles and precision machinery where rigidity and minimal runout are critical. The use of a ceramic ball and phenolic cage combination contributes to lower friction, higher limiting speeds, and extended service life.
7001 ACDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 7001 | Basic bearing series and size designation | 12 mm bore, 28 mm OD, 8 mm width. |
| AC | Angular Contact design | Optimized for combined loads. |
| DGA | Universal Matchable (SU) bearing set | Can be mounted in tandem, back-to-back, or face-to-face arrangements without pre-calculation. |
| HC | Hybrid Ceramic | Features ceramic balls for reduced weight, lower friction, and higher speed capability. |
| P4A | Tolerance Class | Denotes extra-high precision with very tight dimensional and running accuracy tolerances. |
7001 ACDGA/HCP4A Bearing Structural Features & Performance Benefits
High-Speed & Low-Friction Performance: The combination of ceramic balls and a lightweight phenolic resin cage significantly reduces centrifugal forces and friction, enabling the bearing to achieve a very high limiting speed of 110,000 rpm. This makes it a premier choice for high-speed applications.
Ultra-Precision & Rigidity: Manufactured to P4A tolerance class, this bearing guarantees minimal runout and vibration. The 25° contact angle provides an optimal balance between radial load capacity and axial load capacity, delivering high system rigidity.
Universal Matching & Simplified Assembly: The DGA suffix indicates that the bearings are universally matchable. A set of three bearings can be mounted in any preload configuration (tandem, back-to-back, face-to-face) without selective assembly, simplifying installation and ensuring consistent, high performance.
Pre-Lubricated for Immediate Use: The bearing comes lubricated from the factory, ready for immediate installation and operation within its specified temperature range.
7001 ACDGA/HCP4A Bearing Typical Application Areas
The 7001 ACDGA/HCP4A is specifically designed for high-end, precision-driven machinery. Its key application areas include:
- High-Frequency CNC Spindles for milling, grinding, and drilling
- Precision Machine Tool Main Spindles
- High-speed Robotic Arm Drives and Joints
- Dental and Medical Handpiece Motors
- Aerospace Instrumentation and Guidance Systems
- High-performance Turbochargers and Compressors
