7020 CE/HCP4ADGA
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
7020 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The 7020 CE/HCP4ADGA is a high-precision angular contact ball bearing engineered for demanding applications requiring exceptional rotational accuracy and stiffness. This universal matchable (SU) bearing features a 15° contact angle and ceramic balls, delivering superior performance in high-speed and high-rigidity scenarios. Its P4A tolerance class ensures ultra-precise dimensional control, making it ideal for machine tool spindles and other precision equipment where minimal runout and thermal stability are critical.
7020 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7020 | Standard bearing series with 100mm bore, 150mm OD |
| CE | Ceramic balls (hybrid construction) |
| HC | Phenolic (resin) cage |
| P4A | High precision tolerance class |
| DGA | Universal matchable (SU) designation |
7020 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The combination of chrome steel rings and ceramic balls significantly reduces centrifugal forces, enabling higher limiting speeds (20,000 rpm) while providing excellent electrical insulation properties.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring minimal vibration and optimal running accuracy.
Optimized Cage Design: The phenolic cage offers superior strength-to-weight ratio and excellent performance at high speeds, contributing to the bearing's high-speed capability.
Universal Matching Capability: As an SU-type universal matchable bearing, it can be mounted in various preload configurations (back-to-back, face-to-face, or tandem) without selective matching, simplifying installation and maintenance.
7020 CE/HCP4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and grinding spindles
- Precision Robotics: Robot arm joints and rotary tables requiring high accuracy
- Aerospace Systems: Gyroscopes, navigation systems, and auxiliary power units
- Medical Equipment: Dental handpieces, CT scanner gantries, and surgical robots
- High-Speed Motors: Spindle motors and high-frequency electric motors
