NCF 2948 CVSingle row full complement cylindrical roller bearing, NCF design

SKU: NCF 2948 CVSingle row full complement cylindrical roller bearing, NCF design

Single row full complement cylindrical roller bearings are designed to accommodate very high radial loads in combination with moderate speeds. The bearings incorporate a maximum number of rollers as they are not equipped with a cage. Having two integral flanges on the inner ring and one flange on the outer ring, NCF design bearings can accommodate axial displacement in one direction. A retaining ring on the outer ring holds the bearing together. The retaining ring should not be loaded axially during operation.

ID:185218

Dimensions - NCF 2948 CV

Dimensions

d
240 mm
Bore diameter
D
320 mm
Outside diameter
B
48 mm
Width
d1
267 mm
Shoulder diameter inner ring
D1
294 mm
Shoulder diameter outer ring
E
303 mm
Raceway diameter outer ring
s
max. 3 mm
Permissible axial displacement from the normal position of one bearing ring relative to the other
r1,2
min. 2.1 mm
Chamfer dimension
r3,4
min. 1.5 mm
Chamfer dimension

Abutment dimensions - NCF 2948 CV

Abutment dimensions

da
min. 251 mm
Abutment diameter shaft
das
263 mm
Abutment diameter shaft
Da
max. 309 mm
Abutment diameter housing
Db
max. 311 mm
Abutment diameter housing
ra
max. 2 mm
Fillet radius
rb
max. 1.5 mm
Fillet radius

Calculation data

Basic dynamic load rating C
583 kN
Basic static load rating C0
1 140 kN
Fatigue load limit Pu
114 kN
Reference speed
850 r/min
Limiting speed
1 100 r/min
Calculation factor kr
0.2
Limiting value e
0.3
Calculation factor Y
0.4

Mass

Mass bearing
10.4 kg

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