71909 CD/P4A Super Precision Single Row Angular Contact Ball Bearing 7909
71909 CD/P4A 45×68×12 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing
High Speed
Super-precision, high-capacity D design, single row angular contact ball bearing.
The 71909 CD/P4A bearing features a bore diameter of 45 mm, outside diameter of 68 mm, and width of 12 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.
| Part Number | 71909 CD/P4A |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Dimensions | Inner Bore Diameter (d): 45 mm
Inner Bore Diameter Tolerance: -0.006mm to 0
Outer Bore Diameter (D): 68 mm
Outer Bore Diameter Tolerance: -0.007mm to 0
Width (B): 12 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: Grease or Oil
Tolerance Class: P4A better than P4 (ABEC-7)
Weight: 0.13 kg
Matched Arrangement: No
Universal Matching Bearing: No
Preload: Not applicable |
| Load and Speed | Dynamic Radial Load: 13,000 N
Static Radial Load: 9,500 N
Reference Speed For Grease: 19,000 rpm
Limiting Speed For Oil: 32,000 rpm |
Performance Features of 71909 CD/P4A Bearing
The 71909 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 of the 71909 CD/P4A Bearing
The 71909 CD/P4A bearing, a precision angular contact ball bearing, is widely used across various industrial applications:
- Machine Tools: Used in CNC spindles, lathes, milling machines, and grinding machines for high precision and stability
- Industrial Equipment: Found in turbo pumps, compressors, blowers, and automated machines like plastic pipe lines and screen printers, handling radial and axial loads
- Heavy Machinery: Works in mining equipment, waste treatment systems, and construction machinery, withstanding tough conditions and heavy loads
- Environmental and Energy Systems: Applied in wastewater treatment, noise-reduction devices, and automotive testing equipment for reliable performance
- General Machinery: Supports textile machines, construction tools, winches, and accessories like chucks, ensuring smooth operation
- Special Applications: Used in welding tools, water pumps, lab mixers, and precision instruments like broaching machines
| 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!
