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NN3052

Double-Row Cylindrical Roller Bearings
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Parts Number
NN3052E44CC1P4 Double-Row Cylindrical Roller Bearings
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Parts Number

NN3052E44CC1P4

Boundary Dimensions

NN: Inner ring rib type Bearing Type
d 260 mm Bore diameter
D 400 mm Outside diameter
B 104 mm Width
r(min.) 4 mm Chamfer Dimension

Basic Load Ratings

Cr 1030 kN Basic Dynamic Load Rating
C0r 1920 kN Basic Static Load Rating

Speeds

Grease 2000 min-1 Limiting Speed
Oil (Oil-air) 2500 min-1 Limiting Speed

Dimensions

Ew 364 mm Roller Circumscribed Circle Diameters
s 3.8 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 276 mm Diameter of Shaft Abutment
d1a(min.) 278 mm Diameter of Shaft Abutment
Da(min.) 368 mm Diameter of Housing Abutment
Da(max.) 384 mm Diameter of Housing Abutment
ra(max.) 3 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
140 g/brg Recommended Grease Quantities

Holes Dimensions

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

Mass

44.7 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NN30
NSK Product Type Super Precision Bearing
Designations NN3052

© NSK Ltd.

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