7211 CD/P4ADGA
7200 & 7300 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7211 CD/P4ADGA Bearing Product Overview & Core Advantages
The 7211 CD/P4ADGA is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and high-speed performance. This universally matchable (SU) bearing features a 15° contact angle and extra light preload (Class A), making it ideal for spindle arrangements requiring minimal deflection under combined loads. Manufactured to P4A tolerance class, it delivers superior running accuracy and dimensional stability. Its optimized design enables it to handle significant radial and axial loads simultaneously, while the phenolic cage ensures reliable operation at limiting speeds up to 34,000 rpm.
7211 CD/P4ADGA Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Advantage |
|---|---|---|
| CD | 15° contact angle, optimized for high-speed operation | Enhanced axial load capacity and speed performance |
| P4A | High precision tolerance class | Superior running accuracy and dimensional stability |
| DGA | Universal matchable bearing pair designation | Simplified mounting and optimized preload in paired arrangements |
7211 CD/P4ADGA Bearing Structural Features & Performance Benefits
High-Precision Construction: Manufactured from chrome steel rings and balls with P4A tolerance class, ensuring exceptional dimensional accuracy and minimal runout.
Optimized Cage Design: The phenolic cage provides excellent strength-to-weight ratio, reducing centrifugal forces and enabling stable operation at high rotational speeds.
Superior Load Capacity: With a 15° contact angle and optimized raceway geometry, this bearing efficiently handles combined radial and axial loads (dynamic rating: 20,340 lbf, static rating: 19,125 lbf).
Universal Matching Capability: Designed as universally matchable (SU) bearings, they can be paired in any combination to achieve precise preload and stiffness requirements without selective matching.
Extended Service Life: The open design with factory lubrication and precise manufacturing ensures consistent performance across a temperature range of -30°C to 110°C.
7211 CD/P4ADGA Bearing Typical Application Areas
- Machine Tool Spindles - High-speed machining centers and precision grinding machines
- Precision Instrumentation - Measuring equipment and laboratory instruments
- High-Speed Motors - Spindle motors and high-frequency electric motors
- Aerospace Components - Guidance systems and auxiliary power units
- Medical Equipment - Dental handpieces and surgical tool drives
