S71904 CE/P4A Super Precision Single Row Angular Contact Ball Bearing with P4A Precision Grade and High Speed E Design Sealed on Both Sides
S71904 CE/P4A 20×37×9 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 S71904 CE/P4A bearing features a bore diameter of 20 mm, outside diameter of 37 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 | 71904 CE/P4A |
| Bearing Type | Angular Contact |
| Measurement Unit | Metric |
| Dimensions |
Inner Bore Diameter (d): 20 mm Inner Bore Diameter Tolerance: -0.005mm to 0 Outer Bore Diameter (D): 37 mm Outer Bore Diameter Tolerance: -0.006mm to 0 Width (B): 9 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: 0.035 kg Matched Arrangement: No Universal Matching Bearing: No Preload: Not applicable |
| Load and Speed |
Dynamic Radial Load: 4880 N Static Radial Load: 2400 N Reference Speed For Grease: 56,000 rpm Limiting Speed For Oil: 88,000 rpm |
- Engineered for high-precision and high-performance applications
- 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 wide temperature range
The S71904 CE/P4A bearing, with its high-speed E-type design and high precision, is ideal for applications in the mechanical manufacturing industry, including high-speed machining centers, milling machines, and internal grinding machines, where it ensures stable performance and longevity. Its excellent sealing and moderate load capacity also make it suitable for woodworking machinery, while its high rigidity and low friction characteristics are particularly beneficial for metal cutting machine tools that handle heavy workpieces. Overall, this bearing supports efficient, precise, and reliable operation across a variety of demanding industrial applications.
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