NJ 2968 ECMASingle row cylindrical roller bearing, NJ design

SKU: NJ 2968 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:195758

Dimensions - NJ 2968 ECMA

Dimensions

d
340 mm
Bore diameter
D
460 mm
Outside diameter
B
72 mm
Width
d1
377 mm
Shoulder diameter of inner ring
D1
421 mm
Shoulder diameter of outer ring
F
367 mm
Raceway diameter of inner ring
r1,2
min. 3 mm
Chamfer dimension
s
max. 3.8 mm
Permissible axial displacement

Abutment dimensions - NJ 2968 ECMA

Abutment dimensions

da
min. 353 mm
Diameter of spacer sleeve
da
max. 363 mm
Diameter of spacer sleeve
db
min. 381 mm
Diameter of shaft abutment
Da
max. 447 mm
Diameter of housing abutment
ra
max. 2.5 mm
Radius of fillet

Calculation data

Basic dynamic load rating C
1 020 kN
Basic static load rating C0
2 040 kN
Fatigue load limit Pu
186 kN
Reference speed
1 400 r/min
Limiting speed
1 900 r/min
Minimum load factor kr
0.07
Limiting value e
0.3
Calculation factor Y
0.4

Mass

Mass
37 kg

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