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 |
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| UFL004 NACHI Minimum Buy Quantity N/A Bearing units | Bearing number UFL004 Brand NACHI Bore Diameter (mm) 20 d 20 mm A0 26.5 mm A 16 mm A1 8 mm B1 24.5 mm H 90 mm J 71 mm L 55 mm N 10 mm S 6 mm Bolt (G) M8 A2 8 mm Category Bearings BDI Inventory 0.0 Manufacturer Name NACHI Minimum Buy |
| 150RNPH2503 NSK B1 169 mm 150x250x70mm Cylindrical roller bearings | Bearing number 150RNPH2503 Size (mm) 150x250x70 Brand NSK Bore Diameter (mm) 150 Outer Diameter (mm) 250 Width (mm) 70 d 150 mm D 250 mm B1 169 mm C 70 mm r1 min. 20 mm Basic dynamic load rating (C) 640 kN |
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 |
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