71811 CD/P4 Super Precision Single Row Angular Contact Ball Bearing with P4 Precision Grade 55 mm Bore and High Static Load Capacity
Price:
Please contact us,thanks
MOQ:
1000
Delivery Time:
2-3 weeks
Brand:
CNBTZC or OEM
Product Description
71811 CD/P4 Super Precision Single Row Angular Contact Ball Bearing 7811
71811 CD/P4 55×72×9 Super Precision High Capacity Single Row Angular Contact Ball Bearing
This super-precision, high-capacity, single row angular contact ball bearing features precise dimensions, high static load capacity, and P4 precision grade. It delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
Specifications
| Part Number | 71811 CD/P4 |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Inner Bore Diameter (d) | 55 mm |
| Inner Bore Diameter Tolerance | -0.007mm to 0 |
| Outer Bore Diameter (D) | 72 mm |
| Outer Bore Diameter Tolerance | -0.007mm to 0 |
| Width (B) | 9 mm |
| Width Tolerance | -0.2mm to 0 |
| 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 | Grease or Oil |
| Tolerance Class | P4 (ABEC-7) |
| Weight | 0.073 kg |
| Dynamic Radial Load | 10100 N |
| Static Radial Load | 10800 N |
| Reference Speed For Grease | 18,000 rpm |
| Limiting Speed For Oil | 28,000 rpm |
Performance Features
The 71811 CD/P4 angular contact ball bearing is engineered for high-precision and high-performance applications, featuring:
- Very tight tolerances suitable for precise machinery
- Ability to handle both radial and axial loads simultaneously
- High-speed operation with stability
- Low torque and friction for energy efficiency
- Enhanced rigidity for accuracy under heavy loads
- Durability with extended service life
- Effective performance across a wide temperature range
Applications
The 71811 ACD/HCP4 bearing is designed to meet the stringent demands of various advanced applications:
- Precision Machine Tools & Machining Equipment: CNC lathe/milling machine spindles, jig grinder grinding wheel spindles
- Industrial Robotics & Automation: SCARA robot Z-axis drives, delta robot rotary joints
- Aerospace Critical Systems: Aircraft fuel pump drive shafts, satellite attitude control flywheels
- Medical & Optical Equipment: CT scanner rotating gantries, laser cutter focusing heads
- Semiconductor Manufacturing: Lithography wafer stage drives, wafer polisher spindles
- Energy & Fluid Machinery: Centrifugal compressor shafts, high-speed turbine generators
Certifications & Services
| 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 |
If you need more detailed information, feel free to ask!
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Beining Intelligent Technology (Zhejiang) Co., Ltd
Location
No.502,Xinxing Third Road,Cixi Intelligent Home Appliance High Tech Industrial Development Zone, Zhejiang,China
Contact Person
Shelley Dong