NUB 220 ECJ

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, NUB design bearings can accommodate axial displacement in both directions. The inner ring is extended on both sides, enabling larger axial displacements. An important feature is the separable design, which facilitates mounting and enables the bearing components to be interchanged.

• High radial load carrying capacity
• Low friction
• Long service life
• Accommodate axial displacement in both directions
• Separable design

Dimensions

d	100 mm	Bore diameter
D	180 mm	Outside diameter
B	46 mm	Width
C	34 mm	Width of outer ring
D1	≈155.55 mm	Shoulder diameter of outer ring
F	119 mm	Raceway diameter of inner ring
r1,2	min.2.1 mm	Chamfer dimension
r3,4	min.2.1 mm	Chamfer dimension
s	max.6.8 mm	Permissible axial displacement

Abutment dimensions

da	min.113 mm	Diameter of spacer sleeve
da	max.116 mm	Diameter of spacer sleeve
db	min.122 mm	Diameter of shaft abutment
Da	max.167.5 mm	Diameter of housing abutment
ra	max.2 mm	Radius of fillet
rb	max.2 mm	Radius of fillet

Calculation data

SKF performance class		SKF Explorer
Basic dynamic load rating	C	285 kN
Basic static load rating	C0	305 kN
Fatigue load limit	Pu	36.5 kN
Reference speed		4 000 r/min
Limiting speed		4 500 r/min
Minimum load factor	kr	0.15
Limiting value	e	0.3
Calculation factor	Y	0.4