71909 ACB/P4A Super Precision Angular Contact Ball Bearing 45x68x12 mm with P4A Precision Grade for High Speed Applications
71909 ACB/P4A 45×68×12 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing
High Speed - Super-precision, high-speed B design, single row angular contact ball bearing
The 71909 ACB/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 ACB/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: 25° (15°, 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: 7020 N Static Radial Load: 5500 N Reference Speed For Grease: 24,000 rpm Limiting Speed For Oil: 38,000 rpm |
The 71909 ACB/P4A bearing, as a high-precision angular contact ball bearing, is primarily used in scenarios that require high speed, high rigidity, and precise control.
- Precision Machine Tools: CNC machines, grinding, and milling spindles for high accuracy
- High-Speed Equipment: Printing machines, welding equipment, and automation systems
- Precision Instruments: Testing devices, semiconductor machinery, and lab equipment
- Automotive: Gearboxes, transmission systems, and high-temperature engine components
- General Machinery: Plastic/rubber processing, hydraulic systems, and food processing equipment
| 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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