71911 CD/P4A Super Precision P4A Grade High Capacity D Design Angular Contact Ball Bearing 55x80x13 mm
Price:
Please contact us,thanks
MOQ:
1000
Delivery Time:
2-4 weeks
Brand:
CNBTZC or OEM
Product Description
71911 CD/P4A Super Precision Single Row Angular Contact Ball Bearing 7911
71911 CD/P4A 55×80×13 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing
Super-precision, high-capacity D design, single row angular contact ball bearing.
The 71911 CD/P4A bearing features a bore diameter of 55 mm, outside diameter of 80 mm, and width of 13 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.
Technical Specifications
| Part Number | 71911 CD/P4A |
| 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) | 80 mm |
| Outer Bore Diameter Tolerance | -0.007mm to 0 |
| Width (B) | 13 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 | Oil, Grease |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.17 kg |
| Dynamic Radial Load | 19500 N |
| Static Radial Load | 14600 N |
| Reference Speed For Grease | 16,000 rpm |
| Limiting Speed For Oil | 26,000 rpm |
Performance Features
The 71911 CD/P4A 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 71911 CD/P4A bearing, known for its high precision, rigidity, and long service life, finds applications across a wide range of industries:
Machine Tool Industry
- CNC Machine Tool Spindles: Ensures high-speed and precision operations
- Grinding Machine Electric Spindles: Supports grinding processes with high accuracy and minimal vibration
- Machining Center Rotary Axes: Provides reliable performance for smooth operation and precise positioning
Precision Instruments & Industrial Robots
- Robot Joint Reducers: Facilitates smooth and precise movements in robotic joints
- Rotary Joint Drive Units: Offers stable and accurate rotation for various drive units
- Optical Instruments: Enables ultra-precise alignment in semiconductor lithography machines
- High-Precision Measurement Equipment: Ensures reliability and accuracy in measurement instruments
Aerospace & Defense
- Aircraft Engine Auxiliary Power Units: Provides durable and reliable support
- Helicopter Transmission Systems: Supports efficient power transmission
- Gyroscope Mounts in Missile Guidance Systems: Enhances stability and accuracy
- Radar Antenna Rotating Mechanisms: Ensures smooth and precise rotation
New Energy Vehicles & Electric Drives
- Electric Vehicle Motor Spindles: Supports high-performance electric motors
- Hybrid Transmission Systems: Facilitates smooth transitions between drive modes
- High-Speed Rotors in Fuel Cell Air Compressors: Ensures reliable operation
Medical Equipment
- CT Scanner Rotating Gantries: Provides smooth and precise rotation
- Dental Drill Drive Units: Ensures precise and controlled movements
- Precision Transmission Components in Surgical Robots: Facilitates accurate and reliable movements
| 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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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