NJ 212 ECMSingle row cylindrical roller bearing, NJ design

SKU: NJ 212 ECMSingle 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:188730

SKF performance class
SKF Explorer

 

Dimensions - NJ 212 ECM

Dimensions

d
60 mm
Bore diameter
D
110 mm
Outside diameter
B
22 mm
Width
d1
77.5 mm
Shoulder diameter of inner ring
D1
95.1 mm
Shoulder diameter of outer ring
F
72 mm
Raceway diameter of inner ring
r1,2
min. 1.5 mm
Chamfer dimension
r3,4
min. 1.5 mm
Chamfer dimension
s
max. 1.4 mm
Permissible axial displacement

 

Abutment dimensions - NJ 212 ECM

Abutment dimensions

da
min. 68 mm
Diameter of spacer sleeve
da
max. 70 mm
Diameter of spacer sleeve
db
min. 80 mm
Diameter of shaft abutment
Da
max. 101 mm
Diameter of housing abutment
ra
max. 1.5 mm
Radius of fillet

 

Calculation data

Basic dynamic load rating C
108 kN
Basic static load rating C0
102 kN
Fatigue load limit Pu
13.4 kN
Reference speed
6 700 r/min
Limiting speed
7 500 r/min
Minimum load factor kr
0.15
Limiting value e
0.2
Calculation factor Y
0.6

 

Mass

Mass
0.96 kg

 

 

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