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NNU4952MB

Double-Row Cylindrical Roller Bearings
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Parts Number
NNU4952MBE44CC1P5 Double-Row Cylindrical Roller Bearings
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Parts Number

NNU4952MBE44CC1P5

Boundary Dimensions

NNU: Outer ring rib type Bearing Type
d 260 mm Bore diameter
D 360 mm Outside diameter
B 100 mm Width
r(min.) 2.1 mm Chamfer Dimension

Basic Load Ratings

Cr 1070 kN Basic Dynamic Load Rating
C0r 2100 kN Basic Static Load Rating

Speeds

Grease 2100 min-1 Limiting Speed
Oil (Oil-air) 2600 min-1 Limiting Speed

Dimensions

Ew 289 mm Roller Circumscribed Circle Diameters
s 2.4 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 271 mm Diameter of Shaft Abutment
d1a(min.) 275 mm Diameter of Shaft Abutment
Da(max.) 349 mm Diameter of Housing Abutment
ra(max.) 2 mm Radius of Shaft or Housing Fillet

Additional information

CC1(max.) 55 μm Clearance in Bearings with Cylindrical Bores
CC1(min.) 20 μm Clearance in Bearings with Cylindrical Bores
88 g/brg Recommended Grease Quantities

Holes Dimensions

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

Mass

28.3 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NNU
NSK Product Type Super Precision Bearing
Designations NNU4952MB

© NSK Ltd.

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