SKF NRT180B Axial-radial cylindrical roller bearings,SKF NRT 180 B Super-precision bearings-BEARINGPOWER Co.,Ltd.
Bearings, units and housings -- Super-precision bearings -- Axial-radial cylindrical roller bearings -- Axial-radial cylindrical roller bearings, super-precision -- SKF NRT 180 B

NRT 180 B

Dimensions
d 180mm
D 280mm
H 43mm
d1 244mm
C 15mm
H1 29mm
J 194mm
J1 260mm
N 7mm
N1 11mm
N2 7mm
a 6.2mm
r1min.0.6mm
r2min.0.3mm
Calculation data
Basic dynamic load rating - radial directionC 89.7kN
Basic static load rating - radial directionC0 236kN
Basic dynamic load rating - axial directionC 80kN
Basic static load rating - axial directionC0 560kN
Attainable speed for grease lubrication  190r/min
Attainable speed for oil-air lubrication  380r/min
Axial preload  2.6kN
Axial unloading force  5.6kN
Frictional momentCRL 13N·m
Axial stiffness  10.6kN/µm
Radial stiffness  5.8kN/µm
Moment stiffness  54kN·m/mrad
Mass
Mass bearing  7.5kg
Rotary table
Guideline diameter  400mm
Mounting information
Retaining bolts
Size  M6
Number of bolts  2 
Angle between bolts  180°
Removal threads
SizeG M8
Number of threads  3 
Angle between threads  120°
Required attachment bolts, shaft
Bolt size  M6
Pitcha 7.5°
Number of bolts  46 
Number of bolts omitted at retaining bolts position  2, 180° apart
Tightening torque (Bolt grade 10.9)  14N·m
Required attachment bolts, housing
Bolt size  M6
Pitcha 7.5°
Number of bolts  45 
Number of bolts omitted at removal thread position  3, 120° apart
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Hot number: 16016 400450 6204 NR 6417 71922 ACB/HCP4A AS 5070 BT4B 328727 G/HA1VA901 C 3184 M FSAF 22317 NA 4909.2RS NU 20/530 ECMA PCZ 1208 E PSM 081108 A51 SAF 22540 x 7.1/4 T SHT 100

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