SKF NNU4921B/SPW33 Cylindrical roller bearings,SKF NNU 4921 B/SPW33 Super-precision bearings-BEARINGPOWER Co.,Ltd.
Bearings, units and housings -- Super-precision bearings -- Cylindrical roller bearings -- Cylindrical roller bearings, double row, super-precision -- SKF NNU 4921 B/SPW33

NNU 4921 B/SPW33

Dimensions
d 105mm
D 145mm
B 40mm
D1 130.8mm
F 118mm
b 5.5mm
K 3mm
r1,2min.1.1mm
smax.1.1mm
Abutment dimensions
damin.111mm
damax.116mm
dbmin.121mm
Damax.138.5mm
ramax.1mm
dn 119mm
Calculation data
Basic dynamic load ratingC 130kN
Basic static load ratingC0 260kN
Fatigue load limitPu 30kN
Attainable speed for grease lubrication  5300r/min
Attainable speed for oil-air lubrication  6000r/min
Reference grease quantityGref 15cm³
Static radial stiffness (guideline value)  3040N/µm
Mass
Mass bearing  2kg
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Hot number： 18x32x7 HMSA10 V 22230 CCK/W33 71919 ACD/P4AH1 BB1B 363270 GEC 600 FBAS IR 160x175x40 KRVE 19 PPA NA 2207.2RSX NU 213 ECM/HC5C3 PPM 101215 PSM 556570 A51 S71911 CD/P4A SAF 22318 TLC W 628-2RS1 Z 305 F

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