7211 CD/HCP4A 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/HCP4A 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. Equipped
with hybrid ceramic balls, this bearing delivers superior
performance and reliability, making it ideal for applications that
require high rotational accuracy and stability.
| Part Number | 7211 CD/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) | 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 | 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 | Oil or Grease |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.51 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) | 17,000 rpm |
| Limiting Speed For Oil(r/min) | 26,000 rpm |
What's the Performance Features of 7211 CD/HCP4A Bearing?
The 7211 CD/HCP4A angular contact ball bearing, meeting P4A
precision grade standards, efficiently handles radial and axial
loads while enabling high-speed, stable operation. With minimized
torque and friction for energy savings, enhanced rigidity for heavy
- load accuracy, and hybrid ceramic balls ensuring durability and a
wide - temperature - range performance, it's perfect for
applications demanding top - notch rotational precision and
reliability.
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:
- High-end CNC machine tools (spindles for milling, grinding, turning)
- Precision grinding equipment (aerospace component processing)
- Industrial robotics (joints and actuators requiring high rigidity)
- Aerospace/defense (engine accessories and high-speed, high-vibration systems)
- Semiconductor manufacturing (wafer processing and lithography tools)
- Medical devices (high-speed surgical tools and diagnostic equipment)
- High-speed motors/turbomachinery (energy-efficient electric motors and compressors)
- Optical/metrology instruments (precision spectrometers and alignment 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 |
