W638/4-2RS1 SKF 4x9x4mm r1 min. 4.8 mm Deep groove ball bearings


| Bearing number | W638/4-2RS1 |
| Size (mm) | 4x9x4 |
| Brand | SKF |
| Bore Diameter (mm) | 4 |
| Outer Diameter (mm) | 9 |
| Width (mm) | 4 |
| d | 4 mm |
| D | 9 mm |
| B | 4 mm |
| C | 4 mm |
| d1 | 5.2 mm |
| d2 | – mm |
| r1 min. | 4.8 mm |
| r2 min. | 4.8 mm |
| D1 | 8.1 mm |
| D2 | 0.1 mm |
| da min. | 5.1 mm |
| Da max. | 8.2 mm |
| ra max. | 0.1 mm |
| Weight | 0.001 Kg |
| Basic dynamic load rating (C) | 0.364 kN |
| Basic static load rating (C0) | 0.114 kN |
| Fatigue load limit (Pu) | 0.005 |
| Reference speed | – r/min |
| Limiting speed | 40000 r/min |
| Calculation factor (f0) | 6.5 |
Detailed Parameters
parameter:
| E-LL483448/LL483418 Tapered roller bearings | Bore Diameter :759.925mm ,Width :69.85mm ,Outer Diameter :889mm ,Brand:NTN ,Size :759.925x889x69.85mm |
| 71948 CTBP4 Angular contact ball bearings | Outer Diameter :320mm ,Size :240x320x38mm ,Brand:CX ,Bore Diameter :240mm |
| 323184 Tapered roller bearings | Size :420x700x224mm ,d:420 mm ,Width :224mm ,Bore Diameter :420mm ,Outer Diameter :700mm ,Brand:NTN |
| H414242/H414210 Tapered roller bearings | Brand:Timken ,Outer Diameter :136.525mm ,Bore Diameter :66.675mm ,Size :66.675x136.525x41.275mm |
| 3211-ZZ Angular contact ball bearings | Bore Diameter :55mm ,Brand:ISB ,Outer Diameter :100mm ,Size :55x100x33.3mm |
| SA50ES Plain bearings | Brand:AST ,Bore Dia (d):50.0000 ,Width :35mm ,Width (B):35.0000 ,Bearing Type - steel-on-steel:steelonsteel ,Bore Diameter :50mm |
| N 1072 Cylindrical roller bearings | Size :360x495x82mm ,Brand:NACHI ,d:360 mm ,Bore Diameter :360mm ,Outer Diameter :495mm ,Width :82mm |
| ZA-57BWKH04E2-Y-01 E Tapered roller bearings | dc:51.5 mm ,d:28.6 mm ,Bore Diameter :28.6mm ,Brand:NSK |
| NN3148C1NAP4 Cylindrical roller bearings | Outer Diameter :400mm ,Size :240x400x128mm ,Bore Diameter :240mm ,d:240 mm ,Width :128mm ,Brand:NTN |
| 6918ZZ Deep groove ball bearings | Outer Diameter :125mm ,Brand:KOYO ,Size :90x125x18mm ,Bore Diameter :90mm |
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