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NNU4968

Double-Row Cylindrical Roller Bearings
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Parts Number
NNU4968E44CC1P4Y Double-Row Cylindrical Roller Bearings
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Parts Number

NNU4968E44CC1P4Y

Boundary Dimensions

NNU: Outer ring rib type Bearing Type
d 340 mm Bore diameter
D 460 mm Outside diameter
B 118 mm Width
r(min.) 3 mm Chamfer Dimension

Basic Load Ratings

Cr 1350 kN Basic Dynamic Load Rating
C0r 3400 kN Basic Static Load Rating

Speeds

Grease 1700 min-1 Limiting Speed
Oil (Oil-air) 2000 min-1 Limiting Speed

Dimensions

Ew 376 mm Roller Circumscribed Circle Diameters
s 3.0 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 353 mm Diameter of Shaft Abutment
d1a(min.) 363 mm Diameter of Shaft Abutment
Da(max.) 447 mm Diameter of Housing Abutment
ra(max.) 2.5 mm Radius of Shaft or Housing Fillet

Additional information

CC1(max.) 65 μm Clearance in Bearings with Cylindrical Bores
CC1(min.) 20 μm Clearance in Bearings with Cylindrical Bores

Holes Dimensions

dh 6 mm Hole Diameter
W 12 mm Oil Groove Width
m 4 Number of Holes

Mass

52.9 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NNU
NSK Product Type Super Precision Bearing
Designations NNU4968

© NSK Ltd.

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