7011 ACB/P4A 55x90x18 mm High Speed P4A Precision Grade Angular Contact Ball Bearing Single Row
7011 ACB/P4A 55×90×18 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing - High Speed
Super-precision, high-speed B design, single row angular contact ball bearing.
The 7011 ACB/P4A bearing features a bore diameter of 55 mm, outside diameter of 90 mm, and width of 18 mm. With precise dimensions, high static load capacity, and P4A precision grade, it delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
| Part Number | 7011 ACB/P4A |
|---|---|
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Dimensions |
Inner Bore Diameter (d): 55 mm Inner Bore Diameter Tolerance: -0.007mm to 0 Outer Bore Diameter (D): 90 mm Outer Bore Diameter Tolerance: -0.008mm to 0 Width (B): 18 mm Width Tolerance: -0.2mm to 0 |
| Specifications |
Contact Angle: 25° (15°, 40° Available) Material: Chrome Steel Cage Material: Phenolic Number of Rows: 1 Single Row Seal Type: Open Temperature Range: -30°C to 150°C Lubrication: Grease or Oil Tolerance Class: P4A (better than P4) Weight: 0.42 kg Matched Arrangement: No Universal Matching Bearing: No Preload: Not applicable |
| Load and Speed |
Dynamic Radial Load: 14,000 N Static Radial Load: 11,000 N Reference Speed For Grease: 19,000 rpm Limiting Speed For Oil: 30,000 rpm |
The 7011 ACB/P4A bearing is engineered for high-performance applications, featuring P4A grade precision and angular contact design for handling significant radial and axial loads. Optimized for high-speed operation with minimal vibration, it offers smooth, quiet performance and is constructed from premium materials to ensure durability and longevity. This bearing maintains high precision during operation, making it ideal for critical applications in machine tools, automation, aerospace, medical devices, and other industries requiring exceptional accuracy and reliability.
The 7011 ACB/P4A is a high-precision angular contact ball bearing built to P4A ISO tolerance class. It is engineered for applications that demand high speed, rigidity, and accuracy.
- Machine Tool Spindles - Used in CNC milling, turning, and grinding machines where precision and stability are critical
- High-Speed Motors & Compressors - Supports rotors in electric motors, turbochargers, and compressors for reliable high-speed performance
- Aerospace Systems - Installed in flight control actuators and auxiliary power units (APUs) for dependable operation in critical systems
- Industrial Robotics - Ideal for robotic joints and actuators requiring precise motion control in robotic arms
- Precision Instruments - Applied in optical equipment, medical devices, and semiconductor manufacturing tools for high-accuracy performance
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