W638/4X-2RS1 SKF d1 5.9 mm 4x10x4mm Deep groove ball bearings
| Bearing number | W638/4X-2RS1 |
| Size (mm) | 4x10x4 |
| Brand | SKF |
| Bore Diameter (mm) | 4 |
| Outer Diameter (mm) | 10 |
| Width (mm) | 4 |
| d | 4 mm |
| D | 10 mm |
| B | 4 mm |
| C | 4 mm |
| d1 | 5.9 mm |
| d2 | – mm |
| r1 min. | 5.6 mm |
| r2 min. | 5.6 mm |
| D1 | 8.8 mm |
| D2 | 0.2 mm |
| da min. | 5.8 mm |
| Da max. | 8.8 mm |
| ra max. | 0.2 mm |
| Weight | 0.0014 Kg |
| Basic dynamic load rating (C) | 0.637 kN |
| Basic static load rating (C0) | 0.25 kN |
| Fatigue load limit (Pu) | 0.011 |
| Reference speed | – r/min |
| Limiting speed | 36000 r/min |
| Calculation factor (f0) | 12 |
Detailed Parameters
parameter：
| 16036 Deep groove ball bearings | Brand:NSK ，Outer Diameter :280mm ，Bore Diameter :180mm ，d:180 mm ，Width :31mm ，Size :180x280x31mm |
| S683-2TS Deep groove ball bearings | Outer Diameter :7mm ，Bore Diameter :3mm ，Size :3x7x3mm ，Brand:ZEN |
| VEX 50 7CE1 Angular contact ball bearings | Bore Diameter :50mm ，Brand:SNFA ，d:50 mm ，Size :50x80x16mm ，Outer Diameter :80mm ，Width :16mm |
| BK0409 Cylindrical roller bearings | Fw:4 mm ，Outer Diameter :8mm ，Width :9mm ，Size :4x8x9mm ，Brand:ISO ，Bore Diameter :4mm |
| NNU4944K V Cylindrical roller bearings | Outer Diameter :300mm ，Size :220x300x80mm ，Bore Diameter :220mm ，Width :80mm ，d:220 mm ，Brand:CX |
| AST11 7560 Plain bearings | Outer Diameter :80mm ，Shaft Size (ds) - 75 -0.03 / -0.06:75 0.03 / 0.06 ，Brand:AST ，Shaft Dia., Nominal (d):75.0000 ，Bearing Type:straight ，Bore Diameter :75mm |
| NU 2314 Cylindrical roller bearings | Brand:ISB ，d:70 mm ，Outer Diameter :150mm ，Bore Diameter :70mm ，Size :70x150x51mm ，Width :51mm |
| T.A.C. 217 Plain bearings | Width :14mm ，Size :17x30x14mm ，Brand:ISB ，Bore Diameter :17mm ，Outer Diameter :30mm |
| QJ338N2MA Angular contact ball bearings | Outer Diameter :400mm ，Brand:SKF ，Width :78mm ，Size :190x400x78mm ，Bore Diameter :190mm ，d:190 mm |
| 71908 CTBP4 Angular contact ball bearings | Bore Diameter :40mm ，Outer Diameter :62mm ，Width :12mm ，Size :40x62x12mm ，d:40 mm ，Brand:CX |
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