7000 CDGC/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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7000 CDGC/P4A Bearing Product Overview & Core Advantages
The 7000 CDGC/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring superior rotational accuracy and rigidity. Designed to accommodate combined loads (radial and axial loads in one direction), this bearing features a 15° contact angle and P4A super-precision tolerance class, making it ideal for machine tool spindles and other high-speed, high-accuracy equipment. Its universal matching (SU) capability allows for flexible mounting arrangements in duplex sets to achieve optimal preload and system stiffness.
7000 CDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7000 | Basic series designation for metric angular contact ball bearings |
| C | 15° contact angle design |
| DG | Universal matchable bearing (can be paired in any combination) |
| C | Moderate preload (Class C) |
| P4A | Super precision tolerance class (equivalent to ABEC 7) |
7000 CDGC/P4A Bearing Structural Features & Performance Benefits
High Precision Construction: Manufactured to P4A tolerance standards with bore and outside diameter tolerances of -0.004mm to 0, ensuring exceptional running accuracy and minimal vibration.
Optimized Load Capacity: The 15° contact angle provides excellent axial load capacity in one direction while maintaining substantial radial load capability, with dynamic and static load ratings of 922 lbf and 374 lbf respectively.
High-Speed Performance: The phenolic resin cage and optimized internal geometry enable limiting speeds up to 185,000 rpm, making it suitable for demanding high-speed applications.
Precision Matching Capability: As a universal matchable (SU) bearing, it can be paired in various duplex arrangements (back-to-back, face-to-face, or tandem) to achieve specific preload and stiffness requirements.
7000 CDGC/P4A Bearing Typical Application Areas
- Machine tool spindles and high-precision machining centers
- High-speed motors and precision spindles
- Robotic joints and automation equipment
- Medical equipment and dental handpieces
- Aerospace components and instrumentation
- Precision grinding machines and measuring equipment
