7011 ACEGA/P4A
7000 Series Super Precision Angular Contact Ball Bearings
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Basic Information
Main Dimensions
Ball & Washer Dimensions
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Materials
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7011 ACEGA/P4A Bearing Product Overview & Core Advantages
The 7011 ACEGA/P4A is a single row angular contact ball bearing designed for high-precision applications requiring exceptional rotational accuracy and rigidity. Manufactured to P4A tolerance class, this bearing delivers superior running accuracy and dimensional stability. Its 25° contact angle provides excellent capacity for combined radial and axial loads, while the extra light preload (Class A) ensures minimal deflection and smooth operation in precision arrangements. The bearing comes universally matchable (SU), allowing for precise axial clearance control when mounted in pairs.
7011 ACEGA/P4A Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 7011 | Basic bearing designation (55mm bore, 90mm OD, 18mm width) |
| AC | Angular Contact design with 25° contact angle |
| EGA | Extra Light Preload (Class A) for minimal deflection |
| P4A | High Precision Tolerance Class for superior running accuracy |
7011 ACEGA/P4A Bearing Structural Features & Performance Benefits
Precision Engineering: Manufactured to P4A tolerance standards with tight dimensional control (bore/OD tolerance: -0.004mm to 0), ensuring exceptional running accuracy and consistent performance in high-speed applications.
Optimized Load Capacity: The 25° contact angle provides balanced performance for combined radial and axial loads, with dynamic load rating of 3578 lbf and static load rating of 2610 lbf.
High-Speed Performance: Featuring a phenolic resin cage that reduces centrifugal forces and friction, enabling operation at limiting speeds up to 34,000 rpm.
Premium Material Construction: Manufactured from chrome steel for both rings and balls, providing excellent wear resistance and durability under demanding operating conditions.
Precision Matching Capability: Designed as universally matchable (SU), allowing for precise axial clearance control when mounted in pairs for back-to-back or face-to-face arrangements.
7011 ACEGA/P4A Bearing Typical Application Areas
- Machine Tool Spindles - High-precision machining centers and grinding spindles
- Precision Instrumentation - Measuring equipment and laboratory instruments
- High-Speed Motors - Spindle motors and high-RPM electric motors
- Medical Equipment - Dental handpieces and surgical tools
- Aerospace Components - Guidance systems and precision actuators
- Robotics - Precision joints and articulation points
