7211 CD/P4A 55x100x21 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing Hybrid Bearings Ceramic Balls
Super-precision, high-capacity, single row angular contact ball bearing
The 7211 CD/P4A bearing,with a bore diameter of 55 mm,outside diameter of 100 mm,and width of 21 mm,features precise dimensions, high static load capacity, and is manufactured to the P4A precision grade.This bearing delivers superior performance and reliability, making it ideal for applications that require high rotational accuracy and stability.
| Part Number | 7211 CD/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) | 100 mm |
| Outer Bore Diameter Tolerance | -0.008 mm to 0 |
| Width (B) | 21 mm |
| Width Tolerance | -0.2mm to 0 |
| Specifications | Contact Angle | 15° (25°,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 | Oil or Grease |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.61 kg |
| Matched Arrangement | No |
| Universal Matching Bearing | No |
| Preload | Not applicable |
| Load and Speed | Dynamic Radial Load | 55300 N |
| Static Radial Load | 43000 N |
| Reference Speed For Grease (r/min) | 14,000 rpm |
| Limiting Speed For Oil(r/min) | 22,000 rpm |
What's the Performance Features of 7211 CD/P4A Bearing?
The 7211CD/P4A angular contact ball bearing features P4 precision grade for high rotational accuracy, handling radial and axial loads efficiently. It enables high-speed operation (up to 15,000rpm), reduces friction for energy savings, and offers strong rigidity for heavy loads. Made with chrome steel, it suits CNC spindles, high-speed motors, and precision equipment, balancing durability and performance in demanding applications.
What's the Applications of the 7211 CD/HCP4A Bearing?
The 7211 CD/HCP4A angular contact ball bearing, with its high-precision P4A grade and hybrid ceramic design, is ideal for:
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CNC machine tool spindles (e.g., machining centers, grinders)
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High-speed servo motors (robotics, automation)
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Industrial pumps and compressors
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Precision measuring instruments (CMMs, etc.)
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Aerospace precision machinery
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High-end medical device rotating components
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High-precision gearboxes and transmission 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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7211 CD/P4A Super Precision Single Row Angular Contact Ball Bearing ACB 55x100x21 Images
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