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NNU4944-S-M-SP FAG

Super precision cylindrical roller bearings NNU49..-S-M-SP, non-locating bearing, double row, separable, with cage


d Bore diameter 220 mm
D Outside diameter 300 mm
B Width 80 mm
Cr Basic dynamic load rating, radial 510.000 N
C0r Basic static load rating, radial 1.140.000 N
Cur Fatigue load limit, radial 133.000 N
nG Grease Limiting speed for grease lubrication 2.550 1/min
nG Oil Limiting speed for oil lubrication 3.000 1/min
≈m Weight 16,918 kg
da diameter shaft shoulder 243 mm
Da diameter of housing shoulder 279 mm
ra1 max Maximum recess radius 2,1 mm
r1 min Minimum chamfer dimension 2,1 mm
F Raceway diameter inner ring 245 mm
ns Width of lubricating groove 12,2 mm
ds Diameter lubrication hole 6,3 mm
s Axial displacement 4,3 mm
Tmin Operating temperature min. -30 °C
Tmax Operating temperature max. 150 °C
Cage Brass Cage M
Tolerance class tolerance class SP SP
Locating Feature , bearing outer ring Lubrication holes and lubrication groove in outer ring S
Radial internal clearance Group 1 (C1) C1