7212 CDGB/P4A
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
7212 CDGB/P4A Bearing Product Overview & Core Advantages
The 7212 CDGB/P4A is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a single bearing with Universal Matchable (SU) designation, it can be precisely paired with identical bearings to form optimized matched arrangements. Its P4A tolerance class ensures superior dimensional and running accuracy, making it ideal for high-speed spindles and other high-precision machinery. The bearing is pre-lubricated and features a light preload (Class B), providing immediate operational readiness and stable performance under combined radial and axial loads.
7212 CDGB/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7212 | Basic bearing series: 12mm bore diameter (12*5=60mm), light series |
| CD | 15° contact angle and optimized internal geometry for high-speed operation |
| GB | Universal Matchable bearing, can be paired in any combination to achieve specific preload or tolerance requirements |
| P4A | High-precision tolerance class with enhanced running accuracy and dimensional stability |
7212 CDGB/P4A Bearing Structural Features & Performance Benefits
Optimized Internal Geometry: The 15° contact angle provides an excellent balance between radial load capacity and axial load capacity, making it suitable for combined loading conditions.
High-Speed Capability: The phenolic cage offers superior strength-to-weight ratio and operates effectively at the limiting speed of 32,500 rpm, reducing centrifugal forces and maintaining stability.
Precision Performance: Manufactured to P4A tolerance standards, this bearing ensures minimal runout and vibration, critical for high-precision applications.
Superior Load Ratings: With a dynamic load rating of 12,870 lbf and static load rating of 10,462 lbf, it delivers reliable performance under demanding operating conditions.
Material Excellence: Constructed from chrome steel for both rings and balls, providing high hardness, wear resistance, and dimensional stability across the operating temperature range of -30°C to 110°C.
7212 CDGB/P4A Bearing Typical Application Areas
- Machine Tool Spindles: High-speed machining centers, grinding spindles, and precision lathes
- Precision Instrumentation: Measuring equipment, optical instruments, and laboratory apparatus
- High-Speed Motors: Servo motors, spindle motors, and other precision electric drives
- Aerospace Components: Guidance systems, actuator mechanisms, and auxiliary power units
- Medical Equipment: Dental handpieces, surgical tools, and diagnostic imaging systems
