NN4936MB

Double-Row Cylindrical Roller Bearings
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Parts Number

NN4936MBE44CC1P5

Boundary Dimensions

NN: Inner ring rib type Bearing Type
d 180 mm Bore diameter
D 250 mm Outside diameter
B 69 mm Width
r(min.) 2 mm Chamfer Dimension

Basic Load Ratings

Cr 550 kN Basic Dynamic Load Rating
C0r 1020 kN Basic Static Load Rating

Speeds

Grease 3500 min-1 Limiting Speed
Oil (Oil-air) 4200 min-1 Limiting Speed

Dimensions

Ew 232 mm Roller Circumscribed Circle Diameters
s 1.3 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 189 mm Diameter of Shaft Abutment
d1a(min.) 193 mm Diameter of Shaft Abutment
Da(min.) 234 mm Diameter of Housing Abutment
Da(max.) 241 mm Diameter of Housing Abutment
ra(max.) 2 mm Radius of Shaft or Housing Fillet

Additional information

CC1(max.) 40 μm Clearance in Bearings with Cylindrical Bores
CC1(min.) 10 μm Clearance in Bearings with Cylindrical Bores
28 g/brg Recommended Grease Quantities

Holes Dimensions

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

Mass

9.47 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NN49
NSK Product Type Super Precision Bearing
Designations NN4936MB
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