7011 CDGA/HCP4A
Hybrid Ceramic Super Precision Bearings
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Main Dimensions
Ball & Washer Dimensions
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7011 CDGA/HCP4A Bearing Product Overview & Core Advantages
The 7011 CDGA/HCP4A is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered with a 15° contact angle and manufactured to P4A tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its ceramic ball construction enables outstanding high-speed capabilities up to 34,000 rpm while providing excellent resistance to thermal expansion and electrical insulation properties. The bearing comes universally matchable (SU) in sets of two, allowing for precise preload configuration and optimal performance in paired arrangements.
7011 CDGA/HCP4A Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Benefit |
|---|---|---|
| CDGA | 15° contact angle, universal matchable design | Optimized for combined loads and precise axial positioning |
| HCP4A | Hybrid ceramic balls with P4A precision class | Enhanced speed capability, reduced friction, and superior running accuracy |
7011 CDGA/HCP4A Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and silicon nitride ceramic balls provides significant advantages including reduced centrifugal forces, lower operating temperatures, and extended service life at high speeds.
Precision Engineering: Manufactured to ABEC 7/P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional dimensional accuracy and consistent performance.
Phenolic Resin Cage: The phenolic cage material offers excellent strength-to-weight ratio, reduced friction, and superior performance in high-speed applications compared to metallic cages.
High Load Capacity: With a dynamic load rating of 8932 lbf and static load rating of 7312 lbf, this bearing delivers reliable performance under significant radial and axial loads.
Thermal Stability: The ceramic-ball hybrid design maintains dimensional stability across the operating temperature range of -30°C to 110°C.
7011 CDGA/HCP4A Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers and CNC equipment requiring exceptional accuracy and speed
- High-Speed Motors: Electric motors and generators operating at elevated rotational speeds
- Aerospace Systems: Critical rotating components in aircraft systems and satellite mechanisms
- Medical Equipment: High-speed dental handpieces, surgical tools, and diagnostic imaging systems
- Semiconductor Manufacturing: Precision wafer handling equipment and robotic automation systems
- Test & Measurement Instruments: High-accuracy rotational measurement devices and calibration equipment
