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NN3028TB

Double-Row Cylindrical Roller Bearings
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Parts Number
NN3028TBE44CC1P4 Double-Row Cylindrical Roller Bearings
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Parts Number

NN3028TBE44CC1P4

Boundary Dimensions

NN: Inner ring rib type Bearing Type
d 140 mm Bore diameter
D 210 mm Outside diameter
B 53 mm Width
r(min.) 2 mm Chamfer Dimension

Basic Load Ratings

Cr 345 kN Basic Dynamic Load Rating
C0r 515 kN Basic Static Load Rating

Speeds

Grease 4900 min-1 Limiting Speed
Oil (Oil-air) 5700 min-1 Limiting Speed

Dimensions

Ew 192 mm Roller Circumscribed Circle Diameters
s 1.3 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 149 mm Diameter of Shaft Abutment
d1a(min.) 151 mm Diameter of Shaft Abutment
Da(min.) 195 mm Diameter of Housing Abutment
Da(max.) 201 mm Diameter of Housing Abutment
ra(max.) 2 mm Radius of Shaft or Housing Fillet

Additional information

CC1(max.) 35 μm Clearance in Bearings with Cylindrical Bores
CC1(min.) 10 μm Clearance in Bearings with Cylindrical Bores
20 g/brg Recommended Grease Quantities

Holes Dimensions

dh 4 mm Hole Diameter
W 8 mm Oil Groove Width
m 4 Number of Holes

Mass

5.51 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NN30
NSK Product Type Super Precision Bearing
Designations NN3028TB

© NSK Ltd.

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