7011 CE/P4AGMM2
7000 Series Super Precision Angular Contact Ball Bearings
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Main Dimensions
Ball & Washer Dimensions
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7011 CE/P4AGMM2 Bearing Product Overview & Core Advantages
The 7011 CE/P4AGMM2 is a precision angular contact ball bearing designed for applications demanding exceptional rotational accuracy and rigidity. As a single bearing with P4A tolerance class, it delivers superior running accuracy. Its key advantage lies in its ability to accommodate high-speed operation while supporting significant combined loads (radial and axial). The preload availability ensures minimal deflection and high system stiffness, making it ideal for high-precision, high-reliability machinery.
7011 CE/P4AGMM2 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7011 | Basic bearing series and size designation (55mm bore, 90mm OD, 18mm width) |
| CE | Specific internal design with a 15° contact angle and optimized internal geometry |
| P4A | Tolerance class denoting very high precision levels for bore, outer diameter, and width |
| GMM | Indicates the bearing is grease lubricated with a specific quantity and type of grease suitable for the temperature range of -30°C to 110°C |
| 2 | Specifies the number of bearings in the matched set (2 bearings supplied as a set) |
7011 CE/P4AGMM2 Bearing Structural Features & Performance Benefits
High-Speed Performance: The phenolic cage is lightweight and robust, contributing to low friction and stable operation at the high limiting speed of 34,000 rpm. The optimized internal geometry and 15° contact angle further enhance high-speed capability.
High Rigidity & Load Capacity: The angular contact design is engineered to support substantial combined loads. The availability of preload significantly increases system stiffness, reducing vibration and deflection under load for improved machining or positioning accuracy.
Precision Engineering: Manufactured to P4A tolerance class, this bearing ensures extremely tight dimensional and running accuracy, which is critical for applications requiring minimal runout and high positional repeatability.
Material Quality: Constructed from chrome steel for both rings and balls, providing high durability, wear resistance, and a long operational life under demanding conditions.
7011 CE/P4AGMM2 Bearing Typical Application Areas
The 7011 CE/P4AGMM2 is ideally suited for high-performance applications where precision and speed are paramount. Key industries and equipment include:
- Machine Tool Spindles: For high-speed milling, grinding, and turning centers.
- Precision Robotics: In robotic arm joints and gears requiring high rigidity and accuracy.
- High-Frequency Motors & Spindles: Used in motors for CNC machinery and PCB drilling.
- Medical Equipment: In high-speed centrifuges and dental handpieces.
- Aerospace & Defense Systems: For gyroscopes, radar systems, and other precision instrumentation.
