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NN3072KR

Double-Row Cylindrical Roller Bearings
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Parts Number
NN3072KRE44CC0P4Y Double-Row Cylindrical Roller Bearings
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Parts Number

NN3072KRE44CC0P4Y

Boundary Dimensions

NN: Inner ring rib type Bearing Type
d 360 mm Bore diameter
D 540 mm Outside diameter
B 134 mm Width
r(min.) 5 mm Chamfer Dimension

Basic Load Ratings

Cr 1700 kN Basic Dynamic Load Rating
C0r 3450 kN Basic Static Load Rating

Speeds

Grease 1500 min-1 Limiting Speed
Oil (Oil-air) 1800 min-1 Limiting Speed

Dimensions

Ew 493 mm Roller Circumscribed Circle Diameters
s 7.0 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 380 mm Diameter of Shaft Abutment
d1a(min.) 385 mm Diameter of Shaft Abutment
Da(min.) 497 mm Diameter of Housing Abutment
Da(max.) 520 mm Diameter of Housing Abutment
ra(max.) 4 mm Radius of Shaft or Housing Fillet

Additional information

CC1(max.) 75 μm Clearance in Bearings with Cylindrical Bores
CC1(min.) 25 μm Clearance in Bearings with Cylindrical Bores
CC1(max.) 150 μm Clearance in Bearings with Tapered Bores
CC1(min.) 75 μm Clearance in Bearings with Tapered Bores
CC0(max.) 90 μm Clearance in Bearings with Tapered Bores
CC0(min.) 50 μm Clearance in Bearings with Tapered Bores
CC9(max.) Clearance CC9 applicale to cylindrical roller bearings with tapered bores in ISO Tolerance Classes 5 and 4. 75 μm Clearance in Bearings with Tapered Bores
CC9(min.) Clearance CC9 applicale to cylindrical roller bearings with tapered bores in ISO Tolerance Classes 5 and 4. 35 μm Clearance in Bearings with Tapered Bores

Holes Dimensions

dh 8 mm Hole Diameter
W 15 mm Oil Groove Width
m 4 Number of Holes

Mass

99.7 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NN30
NSK Product Type Super Precision Bearing
Designations NN3072KR

© NSK Ltd.

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