NJ 18/1180 ECMASingle row cylindrical roller bearing, NJ design

SKU: NJ 18/1180 ECMASingle row cylindrical roller bearing, NJ design

Single row cylindrical roller bearings are designed to accommodate high radial loads in combination with high speeds. Having two integral flanges on the outer ring and one on the inner ring, NJ design bearings can accommodate axial displacement in one direction. An important feature is the separable design, which facilitates mounting and enables the bearing components to be interchanged.

ID:196830

Dimensions - NJ 18/1180 ECMA

Dimensions

d
1 180 mm
Bore diameter
D
1 420 mm
Outside diameter
B
106 mm
Width
d1
1 263 mm
Shoulder diameter of inner ring
D1
1 338 mm
Shoulder diameter of outer ring
F
1 242 mm
Raceway diameter of inner ring
r1,2
min. 6 mm
Chamfer dimension
s
max. 12 mm
Permissible axial displacement

Abutment dimensions - NJ 18/1180 ECMA

Abutment dimensions

da
min. 1 203 mm
Diameter of spacer sleeve
da
max. 1 228 mm
Diameter of spacer sleeve
db
min. 1 270 mm
Diameter of shaft abutment
Da
max. 1 397 mm
Diameter of housing abutment
ra
max. 5 mm
Radius of fillet

Calculation data

Basic dynamic load rating C
3 030 kN
Basic static load rating C0
7 800 kN
Fatigue load limit Pu
455 kN
Reference speed
320 r/min
Limiting speed
400 r/min
Minimum load factor kr
0.05
Limiting value e
0.2
Calculation factor Y
0.6

Mass

Mass
350 kg

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