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NN3952MBKR

Double-Row Cylindrical Roller Bearings
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Parts Number
NN3952MBKRCC9P4 Double-Row Cylindrical Roller Bearings
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Parts Number

NN3952MBKRCC9P4

Boundary Dimensions

NN: Inner ring rib type Bearing Type
d 260 mm Bore diameter
D 360 mm Outside diameter
B 75 mm Width
r(min.) 2.1 mm Chamfer Dimension

Basic Load Ratings

Cr 775 kN Basic Dynamic Load Rating
C0r 1380 kN Basic Static Load Rating

Speeds

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

Dimensions

Ew 335 mm Roller Circumscribed Circle Diameters
s 1.1 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 271 mm Diameter of Shaft Abutment
d1a(min.) 275 mm Diameter of Shaft Abutment
Da(min.) 338 mm Diameter of Housing 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
CC1(max.) 110 μm Clearance in Bearings with Tapered Bores
CC1(min.) 55 μm Clearance in Bearings with Tapered Bores
CC0(max.) 70 μm Clearance in Bearings with Tapered Bores
CC0(min.) 40 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. 55 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. 25 μm Clearance in Bearings with Tapered Bores
70 g/brg Recommended Grease Quantities

Holes Dimensions

dh 5 mm Hole Diameter
W 9 mm Oil Groove Width
m 4 Number of Holes

Mass

21.4 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NN39
NSK Product Type Super Precision Bearing
Designations NN3952MBKR

© NSK Ltd.

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