7002 CE/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7002 CE/HCP4ADGA Bearing Product Overview & Core Advantages
The 7002 CE/HCP4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. This universal matchable bearing features a 15° contact angle and ceramic balls, enabling superior high-speed capability and extended service life. Its P4A tolerance class ensures ultra-precise rotational accuracy, making it ideal for machine tool spindles and other high-precision equipment where rigidity and reliability are critical.
7002 CE/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
- 7002: Basic bearing series with 15mm bore, 32mm OD, 18mm width
- C: 15° nominal contact angle
- E: Optimized internal design for high-speed operation
- HC: Hybrid Ceramic construction (steel rings with ceramic balls)
- P4A: Ultra-precision tolerance class exceeding ABEC 7
- A: Extra light preload
- DGA: Universal matchable bearing designed for duplex arrangements
7002 CE/HCP4ADGA Bearing Structural Features & Performance Benefits
Hybrid Ceramic Construction: The combination of chrome steel rings and ceramic balls significantly reduces friction, minimizes heat generation, and provides excellent electrical insulation properties. This construction enables higher limiting speeds (140,000 rpm) compared to all-steel bearings.
Phenolic Resin Cage: The lightweight phenolic cage offers superior performance at high speeds, providing excellent dimensional stability and reduced centrifugal forces.
Precision Engineering: Manufactured to P4A tolerance class with tight dimensional tolerances (bore/OD: -0.004mm to 0), this bearing ensures minimal runout and vibration for applications requiring exceptional rotational accuracy.
Universal Matchability: As a universal matchable (SU) bearing, the 7002 CE/HCP4ADGA can be paired in various preload configurations without selective matching, simplifying installation and maintenance.
7002 CE/HCP4ADGA Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers and precision grinding applications
- High-Speed Motors: Servo motors, spindle motors, and high-frequency applications
- Precision Instruments: Measuring equipment, optical instruments, and laboratory devices
- Aerospace Components: Gyroscopes, navigation systems, and auxiliary power units
- Semiconductor Manufacturing: Wafer handling robots and precision positioning stages
