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NNU4964-S-K-M-SP FAG

Super precision cylindrical roller bearings NNU49..-S-K-M-SP, non-locating bearing, double row, with tapered bore, taper 1:12, separable, with cage


d Bore diameter 320 mm
D Outside diameter 440 mm
B Width 118 mm
Cr Basic dynamic load rating, radial 1.070.000 N
C0r Basic static load rating, radial 2.550.000 N
Cur Fatigue load limit, radial 275.000 N
nG Grease Limiting speed for grease lubrication 1.670 1/min
nG Oil Limiting speed for oil lubrication 1.960 1/min
≈m Weight 51,41 kg
da diameter shaft shoulder 356 mm
Da diameter of housing shoulder 409 mm
ra1 max Maximum recess radius 2,5 mm
r1 min Minimum chamfer dimension 3 mm
F Raceway diameter inner ring 359 mm
ns Width of lubricating groove 17,7 mm
ds Diameter lubrication hole 9,5 mm
s Axial displacement 6,3 mm
Tmin Operating temperature min. -30 °C
Tmax Operating temperature max. 150 °C
Cage Brass Cage M
Tolerance class tolerance class SP SP
Bore design Tapered K
Locating Feature , bearing outer ring Lubrication holes and lubrication groove in outer ring S
Radial internal clearance Group 1 (C1) C1