7011 CDGC/P4A
7000 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
7011 CDGC/P4A Bearing Product Overview & Core Advantages
The 7011 CDGC/P4A is a single-row angular contact ball bearing engineered for high-precision applications requiring exceptional rotational accuracy and rigidity. Operating under a P4A tolerance class, this bearing is designed to handle significant combined loads (radial and axial) simultaneously, with a 15° contact angle optimized for high-speed performance. Its moderate preload (Class C) ensures consistent running accuracy and reduced vibration, making it ideal for demanding, high-reliability machinery. The bearing is universally matchable (SU), allowing for precise axial play adjustment when mounted in pairs.
7011 CDGC/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7011 | Standard bearing series designation, indicating a 55mm bore, 90mm OD, and 18mm width. |
| CD | Specifies a 15° contact angle. |
| GC | Indicates a moderate preload (Class C) for enhanced rigidity. |
| P4A | Denotes an ultra-precision tolerance class with running accuracy requirements exceeding ABEC 7. |
7011 CDGC/P4A Bearing Structural Features & Performance Benefits
High Rigidity and Precision: The combination of a phenolic resin cage, ultra-precision P4A tolerances, and a factory-set moderate preload delivers superior system stiffness and minimal runout, which is critical for applications like machine tool spindles.
Superior Load Capacity: The 15° contact angle design enables the bearing to efficiently support substantial combined radial and axial loads, with a dynamic load rating of 8932 lbf and a static load rating of 7312 lbf.
Optimized High-Speed Performance: The lightweight phenolic cage reduces centrifugal forces, while the optimized internal geometry allows for a high limiting speed of 34,000 rpm. The bearing is supplied lubricated for immediate operation.
Universal Matching Capability (SU): As a universally matchable bearing, two 7011 CDGC/P4A bearings can be paired in a back-to-back or face-to-face arrangement to create a stiff, preloaded set capable of handling complex load conditions.
7011 CDGC/P4A Bearing Typical Application Areas
The 7011 CDGC/P4A is ideally suited for high-performance machinery where precision, speed, and rigidity are paramount. Key application areas include:
- Machine Tool Spindles (milling, grinding, and turning centers)
- High-Frequency Motors and Spindles
- Precision Robotic Drives and Actuators
- Aerospace Control Systems
- Medical and Dental Equipment Spindles
