7224 CD/HCP4ADGA
Hybrid Ceramic Super Precision Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7224 CD/HCP4ADGA Bearing Product Overview & Core Advantages
The 7224 CD/HCP4ADGA is a high-precision angular contact ball bearing designed for demanding applications requiring exceptional accuracy and performance. Engineered to accommodate combined loads (radial and axial loads simultaneously), this bearing features a universal matchable (SU) design that allows for flexible mounting configurations. Its extra light preload (Class A) ensures minimal deflection under operational stresses, making it ideal for high-speed spindles and precision machinery where rigidity and rotational accuracy are critical. The combination of ceramic balls and phenolic cage contributes to reduced friction, lower operating temperatures, and extended service life.
7224 CD/HCP4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7224 | Basic bearing series and size designation |
| CD | 15° contact angle design optimized for high-speed operation |
| HCP4A | High-precision P4A tolerance class with enhanced running accuracy |
| DGA | Universal matchable (SU) arrangement designation |
7224 CD/HCP4ADGA Bearing Structural Features & Performance Benefits
Advanced Material Composition: The combination of chrome steel rings with ceramic balls significantly reduces centrifugal forces, enabling higher limiting speeds (10,000 rpm) while maintaining dimensional stability. The phenolic resin cage provides excellent strength-to-weight ratio and operates smoothly at high velocities.
Precision Engineering: Manufactured to P4A tolerance class, this bearing delivers exceptional running accuracy with minimal vibration. The 15° contact angle optimizes axial load capacity while maintaining high-speed capability.
Load Handling Capability: With a dynamic load rating of 73,125 lbf and static load rating of 87,750 lbf, this bearing sustains significant combined loads while maintaining precision alignment.
Thermal Performance: The ceramic-ball construction reduces heat generation, allowing operation within a temperature range of -30°C to 110°C without performance degradation.
7224 CD/HCP4ADGA Bearing Typical Application Areas
This high-precision angular contact ball bearing is specifically engineered for applications requiring superior accuracy and speed:
- Machine Tool Spindles: High-speed machining centers and CNC milling machines
- Precision Grinding Spindles: Surface and cylindrical grinding applications
- High-Speed Motors: Industrial spindle motors and high-frequency drives
- Aerospace Components: Guidance systems and precision instrumentation
- Medical Equipment: Dental handpieces and surgical tool drives
- Robotics: Precision joint mechanisms and automated assembly systems
