W638/4-2Z SKF Width 4mm 4x9x4mm Deep groove ball bearings


Bearing number | W638/4-2Z |
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 | 0.0009 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 | 140000 r/min |
Limiting speed | 70000 r/min |
Calculation factor (f0) | 6.5 |
Detailed Parameters
parameter:
SL04-5048NR Cylindrical roller bearings | Outer Diameter :360mm ,Size :240x360x160mm ,Bore Diameter :240mm ,Brand:NTN |
7213DT Angular contact ball bearings | Outer Diameter :120mm ,Brand:CYSD ,Size :65x120x23mm ,Bore Diameter :65mm |
6309 Deep groove ball bearings | Bore Diameter :45.000mm ,Outer Diameter :100.000mm ,Brand:NTN-SNR ,Size :45x100x25mm |
594/593X Tapered roller bearings | Width :35.992mm ,Size :95.25x150x35.992mm ,d:95.25 mm ,Outer Diameter :150mm ,Brand:CX ,Bore Diameter :95.25mm |
MK12101 Needle roller bearings | Outer Diameter :25.400mm ,Width :15.880mm ,Fw:19.050 mm ,Bore Diameter :19.050mm ,Size :19.050x25.400x15.880mm ,Brand:KOYO |
NUP 1084 Cylindrical roller bearings | Width :90mm ,Brand:NACHI ,Outer Diameter :620mm ,Bore Diameter :420mm ,d:420 mm ,Size :420x620x90mm |
PK22X30X17.8 Needle roller bearings | Fw:22.000 mm ,Outer Diameter :30.000mm ,Bc:17.800 mm ,Bore Diameter :22.000mm ,Ew:30.000 mm ,Brand:NTN |
SBB 22-2RS Plain bearings | d:34.925 mm ,Brand:IKO ,Bore Diameter :34.925mm ,Outer Diameter :55.562mm ,Width :30.15mm ,Size :34.925x55.562x30.15mm |
NNCF4984V Cylindrical roller bearings | Outer Diameter :523mm ,Width :140mm ,Brand:NSK ,Size :420x523x140mm ,Bore Diameter :420mm |
7018C Angular contact ball bearings | Width :24mm ,Brand:CRAFT ,Bore Diameter :90mm ,Size :90x140x24mm ,d:90 mm ,Outer Diameter :140mm |
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