S71909 CD/P4A Super Precision Single Row Angular Contact Ball Bearing 7909
S71909 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 with seals
The S71909 CD/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 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 | 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 | 13000 N |
| Static Radial Load | 9500 N | |
| Reference Speed For Grease (r/min) | 19,000 rpm | |
| Limiting Speed For Oil(r/min) | 32,000 rpm | |
What's the Performance Features of S71909 CD/P4A Bearing?
The S71909 CD/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 S71909 CD/P4A Bearing?
The S71909 CD/P4A bearing, a precision angular contact ball bearing from SKF, is widely used across various industries due to its high speed, high load capacity, and high precision. Below are its main applications and descriptions:
1. Machine Tools
- Used in spindles and CNC machines for high precision tasks like tool magazines and ball screw systems .
2. Industrial Machinery
- Pumps: Works in centrifugal and gear pumps, handling continuous operation .
- Gearboxes: Used in reducers to handle complex loads and improve efficiency .
3. Heavy Machinery
- Steel Mills: Ceramic versions (e.g., S71909CD/HCP4A) extend life in high-temperature, heavy-load environments like rolling mills .
- Mining Equipment: Suitable for crushers and flotation devices requiring impact resistance .
4. Automation and General Industry
- Plastic Machinery: Sealed design prevents dust contamination in injection molding and calendering machines .
- Agricultural/Construction Equipment: Ensures stable operation in tractors, line markers, and similar equipment .
5. Special Applications
- Ideal for high-demand environments requiring durability and precision.
| 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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