NU 3068 MASingle row cylindrical roller bearing, NU design

SKU: NU 3068 MASingle row cylindrical roller bearing, NU 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 no flanges on the inner ring, NU design bearings can accommodate axial displacement in both directions. An important feature is the separable design, which facilitates mounting and enables the bearing components to be interchanged.

ID:195774

Dimensions - NU 3068 MA

Dimensions

d
340 mm
Bore diameter
D
520 mm
Outside diameter
B
133 mm
Width
D1
465 mm
Shoulder diameter of outer ring
F
385 mm
Raceway diameter of inner ring
r1,2
min. 5 mm
Chamfer dimension
s
max. 7 mm
Permissible axial displacement

Abutment dimensions - NU 3068 MA

Abutment dimensions

da
min. 360 mm
Diameter of spacer sleeve
da
max. 380 mm
Diameter of spacer sleeve
db
min. 389 mm
Diameter of shaft abutment
Da
max. 502 mm
Diameter of housing abutment
ra
max. 4 mm
Radius of fillet
ra
max. 4 mm
Radius of fillet
rb
max. 4 mm
Radius of fillet

Calculation data

Basic dynamic load rating C
2 200 kN
Basic static load rating C0
4 150 kN
Fatigue load limit Pu
365 kN
Reference speed
1 100 r/min
Limiting speed
1 700 r/min
Minimum load factor kr
0.15
Limiting value e
0.3
Calculation factor Y
0.4

Mass

Mass
109 kg

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