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NN3011ZTBKR

Double-Row Cylindrical Roller Bearings
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Parts Number
NN3011ZTBKRE44CC1P5 Double-Row Cylindrical Roller Bearings
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Parts Number

NN3011ZTBKRE44CC1P5

Boundary Dimensions

NN: Inner ring rib type Bearing Type
d 55 mm Bore diameter
D 90 mm Outside diameter
B 26 mm Width
r(min.) 1.1 mm Chamfer Dimension

Basic Load Ratings

Cr 47.5 kN Basic Dynamic Load Rating
C0r 48.5 kN Basic Static Load Rating

Speeds

Grease 12400 min-1 Limiting Speed
Oil (Oil-air) 16400 min-1 Limiting Speed

Dimensions

Ew 81 mm Roller Circumscribed Circle Diameters
s 1.4 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 61.5 mm Diameter of Shaft Abutment
d1a(min.) 62 mm Diameter of Shaft Abutment
Da(min.) 83 mm Diameter of Housing Abutment
Da(max.) 83.5 mm Diameter of Housing Abutment
ra(max.) 1 mm Radius of Shaft or Housing Fillet

Additional information

CC1(max.) 20 μm Clearance in Bearings with Cylindrical Bores
CC1(min.) 5 μm Clearance in Bearings with Cylindrical Bores
CC1(max.) 35 μm Clearance in Bearings with Tapered Bores
CC1(min.) 15 μm Clearance in Bearings with Tapered Bores
CC0(max.) 20 μm Clearance in Bearings with Tapered Bores
CC0(min.) 10 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. 15 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. 5 μm Clearance in Bearings with Tapered Bores
2.0 g/brg Recommended Grease Quantities

Holes Dimensions

dh 2 mm Hole Diameter
W 3.5 mm Oil Groove Width
m 4 Number of Holes

Mass

0.488 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NN30
NSK Product Type Super Precision Bearing
Designations NN3011ZTBKR

© NSK Ltd.

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