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NNU4940MB

Double-Row Cylindrical Roller Bearings
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Parts Number
NNU4940MBE44CC1P4Y Double-Row Cylindrical Roller Bearings
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Parts Number

NNU4940MBE44CC1P4Y

Boundary Dimensions

NNU: Outer ring rib type Bearing Type
d 200 mm Bore diameter
D 280 mm Outside diameter
B 80 mm Width
r(min.) 2.1 mm Chamfer Dimension

Basic Load Ratings

Cr 655 kN Basic Dynamic Load Rating
C0r 1220 kN Basic Static Load Rating

Speeds

Grease 3200 min-1 Limiting Speed
Oil (Oil-air) 3800 min-1 Limiting Speed

Dimensions

Ew 223 mm Roller Circumscribed Circle Diameters
s 3.3 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 211 mm Diameter of Shaft Abutment
d1a(min.) 214 mm Diameter of Shaft Abutment
Da(max.) 269 mm Diameter of Housing Abutment
ra(max.) 2 mm Radius of Shaft or Housing Fillet

Additional information

CC1(max.) 45 μm Clearance in Bearings with Cylindrical Bores
CC1(min.) 15 μm Clearance in Bearings with Cylindrical Bores
44 g/brg Recommended Grease Quantities

Holes Dimensions

dh 5 mm Hole Diameter
W 9 mm Oil Groove Width
m 4 Number of Holes

Mass

14.0 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NNU
NSK Product Type Super Precision Bearing
Designations NNU4940MB

© NSK Ltd.

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