7011 CD/P4ADGAGMM
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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7011 CD/P4ADGAGMM Bearing Product Overview & Core Advantages
The 7011 CD/P4ADGAGMM is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing is engineered to handle combined loads with high reliability. Its universal matchable (SU) design allows two bearings to be paired in a back-to-back or face-to-face arrangement, providing excellent operational stability. The combination of a phenolic cage, chrome steel components, and pre-lubrication ensures superior high-speed performance and long service life in demanding environments.
7011 CD/P4ADGAGMM Bearing Model Code Explained, Specifications & Naming Convention
| Suffix Code | Technical Meaning | Performance Implication |
|---|---|---|
| CD | 15° contact angle, universal matchable design | Optimized for combined radial and axial loads; allows flexible bearing arrangements |
| P4A | High precision tolerance class | Superior running accuracy, reduced vibration, and enhanced positional precision |
| DGAGMM | Universal match pairing designation with light preload | Ensures optimal stiffness and performance when mounted as a paired set |
7011 CD/P4ADGAGMM Bearing Structural Features & Performance Benefits
High Rigidity & Load Capacity: The angular contact design with a 15° contact angle enables the bearing to efficiently support combined radial and axial loads. When used in a universally matched pair, the arrangement provides significantly increased system rigidity and moment load capacity.
High-Speed Performance: The lightweight phenolic resin cage minimizes centrifugal forces, contributing to a high limiting speed of 34,000 rpm. This makes it ideal for high-speed spindle applications.
Precision Engineering: Manufactured to P4A tolerance standards with tight dimensional controls on the bore diameter (55 mm), outside diameter (90 mm), and width (36 mm), ensuring consistent and predictable performance in precision assemblies.
Durability and Reliability: Constructed from high-grade chrome steel for both rings and balls, the bearing offers high fatigue life. The open seal type allows for efficient re-lubrication in service, while the standard grease lubrication provides reliable operation within a temperature range of -30°C to 110°C.
7011 CD/P4ADGAGMM Bearing Typical Application Areas
- Machine Tool Spindles: High-precision machining centers, grinding spindles, and CNC lathes.
- High-Speed Motors and Spindles: Electric motors, frequency converter drives, and router spindles requiring high rotational accuracy.
- Precision Instrumentation: Measuring devices, optical scanners, and laboratory equipment.
- Robotics and Automation: High-accuracy robotic arm joints and precision rotary tables.
