S71909 ACB/P4A Super Precision Single Row Angular Contact Ball Bearing 7909 2RZ
S71909 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 with seals
The S71909 ACB/P4A bearing,bore diameter is 45 mm, outside diameter is 68 mm,width is 12 mm,featuring precise dimensions, high static load capacity, P4A precision grade, delivers superior performance and reliability for applications requiring high rotational accuracy and stability.
| Part Number | S71909 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 | Seal on both sides | |
| Temperature Range | -30°C to 150°C | |
| Lubrication | Grease | |
| 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 (r/min) | 24,000 rpm | |
| Limiting Speed For Oil(r/min) | 38,000 rpm | |
What's the Performance Features of 71909 ACB/P4A Bearing?
The 71909 ACB/P4A angular contact ball bearing is engineered for high-precision and high-performance applications, featuring very tight tolerances suitable for precise machinery, the 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.
What's the Applications of the 71909 ACB/P4A Bearing?
The S71909 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. Below is a detailed analysis of its specific application areas:
1. High-Precision Machine Tools
- Machine Tool Spindles: Used in CNC machines, grinders, and milling machines to ensure precision and stability at high speeds.
- Electric Spindles & Machining Centers: Reduces thermal deformation and improves accuracy during ultra-high-speed operation.
2. Industrial Machinery and Equipment
- Pumps & Compressors: Extends the life of equipment like air compressors and centrifugal pumps.
- Automated Production Lines: Provides high rigidity for machines like shearing and bending equipment.
3. Automotive Manufacturing
- Cars & Light Trucks: Used in gearboxes and wheel hubs for low vibration and long service life.
- Reducers & Transmission Systems: Ensures precise motion control in devices like RV reducers.
4. Other High-Precision Applications
- Optical Instruments: Ensures stability in precision measuring equipment.
- Aerospace Equipment: Customized designs for specific operating conditions.
| 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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