SKF NNU4948BK/SPW33 Cylindrical roller bearings,SKF NNU 4948 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 4948 BK/SPW33

NNU 4948 BK/SPW33

Dimensions
d 240mm
D 320mm
B 80mm
D1 292.2mm
F 265.3mm
b 11.1mm
K 3mm
r1,2min.2.1mm
r3,4min.1.1mm
smax.3.7mm

Tapered bore, taper 1:12

Abutment dimensions
damin.251mm
damax.262mm
Damax.309mm
dn 267mm
Calculation data
Basic dynamic load ratingC 528kN
Basic static load ratingC0 1220kN
Fatigue load limitPu 118kN
Attainable speed for grease lubrication  2200r/min
Attainable speed for oil-air lubrication  2600r/min
Reference grease quantityGref 171cm³
Static radial stiffness (guideline value)  6340N/µm
Mass
Mass bearing  17.5kg
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Hot number： 11710 310-2Z 45112 460x500x20 HDS1 R 608 7512 71919 ACE/HCP4AL AOH 3276 G C 4028 K30V D/W R10-2RS1 H 3130 L HCCE 055 R PPMF 151717 SILKAC 16 M YAT 206-104

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