7011 ACB/HCP4A 55x90x18mm Angular Contact Ball Bearing with P4A Precision Grade and Hybrid Ceramic Balls
7011 ACB/HCP4A 55×90×18 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing Ceramic Balls High Speed
Super-precision, high-speed B design, single row angular contact ball bearing
The 7011 ACB/HCP4A 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, P4A precision grade, and hybrid ceramic balls, it delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
| Part Number | 7011 ACB/HCP4A |
|---|---|
| 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 | Hybrid (Chrome Steel Rings, Ceramic Balls) |
| 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 | 0.4 kg |
| Matched Arrangement | No |
| Universal Matching Bearing | No |
| Preload | Not applicable |
| Load and Speed | |
| Dynamic Radial Load | 13300 N |
| Static Radial Load | 10400 N |
| Reference Speed For Grease (r/min) | 19,000 rpm |
| Limiting Speed For Oil (r/min) | 36,000 rpm |
The 7011 ACB/HCP4A bearing, engineered for high-performance applications, features P4A grade precision and an 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/HCP4A is a high-performance angular contact ball bearing designed for applications requiring high speed, rigidity, and precision. It is widely used in the following fields:
- Machine Tool Spindles - For high-speed cutting and precision machining operations such as CNC milling and turning
- High-Speed Motors and Turbomachinery - Provides rotor support in high-speed motors, compressors, and small-scale gas turbines
- Aerospace Equipment - Used in critical systems including auxiliary power units (APUs), flight control actuators, and landing gear mechanisms
- Industrial Robots and Automation Systems - Ideal for robotic joint modules such as SCARA and articulated arms, where precise motion control is essential
- Precision Instruments and Testing Devices - Applied in optical equipment, semiconductor manufacturing tools, and high-resolution measurement systems
| CERTIFICATE | RoHS & REACH, IATF16949:2016 |
|---|---|
| Feature | High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity |
| Service | OEM&ODM Customized Services |
| Samples | Please Contact Us |
| Service | Online Support, Professional Service |
| Size | Standard, For custom sizes, please contact us |
| Factory Manufacturer | Yes |
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