S71905 CE/P4A Super Precision Single Row Angular Contact Ball Bearing 25x42x9 mm High Speed E Design P4A Precision Grade
S71905 CE/P4A 25×42×9 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing
High Speed
Super-precision, high-speed E design, single row angular contact ball bearing with seals.
The S71905 CE/P4A bearing features a bore diameter of 25 mm, outside diameter of 42 mm, and width of 9 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 | S71905 CE/P4A |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Inner Bore Diameter (d) | 25 mm |
| Inner Bore Diameter Tolerance | -0.005mm to 0 |
| Outer Bore Diameter (D) | 42 mm |
| Outer Bore Diameter Tolerance | -0.006mm to 0 |
| Width (B) | 9 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 | Seal on both sides |
| Temperature Range | -30°C to 150°C |
| Lubrication | Grease |
| Tolerance Class | P4A better than P4 (ABEC-7) |
| Weight | 0.04 kg |
| Matched Arrangement | No |
| Universal Matching Bearing | No |
| Preload | Not applicable |
| Dynamic Radial Load | 5270 N |
| Static Radial Load | 2800 N |
| Reference Speed For Grease (r/min) | 49,000 rpm |
| Limiting Speed For Oil (r/min) | 75,000 rpm |
- 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
The S71905 CE/P4A bearing is a high-precision and ultra-precision angular contact ball bearing with broad applications across various industries. It ensures stable and efficient operations in critical sectors including:
- Steel, aluminum, chemical, cement, and paper production
- Wind power generation
- Automotive engines and construction machinery
- Mining and port equipment
- Metallurgical devices and elevators
- Plastic machinery and compressors
- Machine tool centers and heavy vehicle components
| 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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