S7020 ACE/HCP4ATT
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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S7020 ACE/HCP4ATT Bearing Product Overview & Core Advantages
The S7020 ACE/HCP4ATT is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional rigidity and speed capabilities. This matched arrangement bearing set features a triplex tandem (3-DT) configuration, providing superior axial load capacity in one direction. Manufactured to P4A tolerance class, it delivers exceptional running accuracy. The combination of ceramic balls and phenolic cage enables outstanding high-speed performance while maintaining dimensional stability under thermal variations.
S7020 ACE/HCP4ATT Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| ACE | 25° contact angle, enhanced internal design | Optimized for combined radial and axial loads |
| HC | Hybrid ceramic balls | Higher speed capability, reduced heat generation |
| P4A | Ultra-precision tolerance class | Exceptional running accuracy and minimal vibration |
| TT | Triplex tandem arrangement | Maximum axial load capacity in one direction |
S7020 ACE/HCP4ATT Bearing Structural Features & Performance Benefits
Hybrid Ceramic Design: The use of ceramic balls significantly reduces centrifugal forces, enabling higher limiting speeds (16,250 rpm) while maintaining excellent dimensional stability across the operating temperature range (-30°C to 110°C).
Triplex Tandem Configuration: Three bearings are precision-matched in a tandem arrangement, creating an extremely rigid bearing system capable of handling heavy combined loads with exceptional axial stiffness.
Precision Engineering: Manufactured to P4A tolerance standards with tight dimensional controls (bore diameter tolerance: -0.004mm to 0), ensuring precise shaft positioning and smooth operation.
Optimized Cage Design: The phenolic cage provides excellent strength-to-weight ratio and operates effectively at high speeds with minimal friction.
Sealed & Pre-lubricated: Factory-sealed construction with grease lubrication ensures long-term performance without requiring maintenance.
S7020 ACE/HCP4ATT Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles
- Precision Medical Equipment: Dental handpieces, surgical tools
- Aerospace Systems: Turbomachinery, auxiliary power units
- High-Speed Automation: Robotics, pick-and-place systems
- Semiconductor Manufacturing: Wafer handling equipment, precision stages
