7000 CDGB/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
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7000 CDGB/P4A Bearing Product Overview & Core Advantages
The 7000 CDGB/P4A is a single-row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and speed capability. Manufactured to P4A tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its 15° contact angle and light preload (Class B) configuration make it ideally suited for applications demanding high rigidity and precise axial positioning. The bearing comes universally matchable (SU), allowing for precise duplex arrangements when paired with another identical bearing, enabling optimal performance in complex load scenarios.
7000 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7000 C | Basic bearing series with a 15° contact angle. |
| DGB | Duplex arrangement designation. The bearing is universally matchable (SU) and supplied as a single unit for flexible mounting configurations (DB, DF, DT). |
| P4A | Indicates a high-precision tolerance class with enhanced dimensional and running accuracy specifications. |
7000 CDGB/P4A Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: The P4A tolerance class ensures minimal runout and vibration, which is critical for applications like machine tool spindles. The 15° contact angle and light preload provide excellent resistance to combined loads, enhancing system stiffness.
- Superior High-Speed Performance: The phenolic resin cage is lightweight and possesses excellent sliding properties, contributing to lower friction and enabling the bearing to achieve its high limiting speed of 185,000 rpm.
- Optimized Load Capacity: With a dynamic load rating of 922 lbf and a static load rating of 374 lbf, this bearing is engineered to handle significant radial and axial (thrust) loads simultaneously.
- Pre-Lubricated for Immediate Use: The bearing is pre-lubricated, ensuring smooth operation from the start and simplifying the installation process.
7000 CDGB/P4A Bearing Typical Application Areas
- High-Speed Machine Tool Spindles
- Precision Grinding Spindles
- High-Frequency Motors
- Medical and Dental Handpieces
- Aerospace Instrumentation
- Robotic Arm Joints and Drives
