SKF NNU4972BK/SPW33 Cylindrical roller bearings,SKF NNU 4972 BK/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 4972 BK/SPW33

NNU 4972 BK/SPW33

Dimensions
d 360mm
D 480mm
B 118mm
D1 439mm
F 399mm
b 16.7mm
K 9mm
r1,2min.3mm
r3,4min.1.5mm
smax.5.5mm

Tapered bore, taper 1:12

Abutment dimensions
damin.373mm
damax.395mm
Damax.467mm
ramax.2.5mm
Calculation data
Basic dynamic load ratingC 1120kN
Basic static load ratingC0 2800kN
Fatigue load limitPu 255kN
Attainable speed for grease lubrication  1500r/min
Attainable speed for oil-air lubrication  1700r/min
Mass
Mass bearing  55kg
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Hot number： 18x28x7 HMSA10 V 19923 40x55x7 HMS5 V 6304-Z 71818 ACD/HCP4 71919 ACE/P4AL 7308 BEGBP HM 3060 NNCL 4844 CV SI 80 ESX-2LS SNL 3048 ATURT SNP 3180x14.15/16 SYWK 3/4 YTA W 61813 W 61906-2RS1

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