SKF NNU4956B/SPW33 Cylindrical roller bearings,SKF NNU 4956 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 4956 B/SPW33

NNU 4956 B/SPW33

Dimensions
d 280mm
D 380mm
B 100mm
D1 345.6mm
F 312mm
b 13.9mm
K 3mm
r1,2min.2.1mm
smax.4.5mm
Abutment dimensions
damin.291mm
damax.308mm
dbmin.316mm
Damax.369mm
ramax.2mm
dn 313.5mm
Calculation data
Basic dynamic load ratingC 765kN
Basic static load ratingC0 1800kN
Fatigue load limitPu 170kN
Attainable speed for grease lubrication  1900r/min
Attainable speed for oil-air lubrication  2200r/min
Reference grease quantityGref 384cm³
Static radial stiffness (guideline value)  7260N/µm
Mass
Mass bearing  32.5kg
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Hot number： 140x160x12 HMS5 V 27365 28697 51134 M 81168 M 7032 CD/HCP4AL AH 24140 FYJ 514 GEZH 508 ES-2RS N 630 S7020 CB/P4A SAF 1617 x 2.7/8 SAKB 20 F SNW 115x2.7/16 SY 25 LDW

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