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NN4924MBKR

Double-Row Cylindrical Roller Bearings
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Parts Number
NN4924MBKRE44CC1P4 Double-Row Cylindrical Roller Bearings
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Parts Number

NN4924MBKRE44CC1P4

Boundary Dimensions

NN: Inner ring rib type Bearing Type
d 120 mm Bore diameter
D 165 mm Outside diameter
B 45 mm Width
r(min.) 1.1 mm Chamfer Dimension

Basic Load Ratings

Cr 211 kN Basic Dynamic Load Rating
C0r 360 kN Basic Static Load Rating

Speeds

Grease 5300 min-1 Limiting Speed
Oil (Oil-air) 6400 min-1 Limiting Speed

Dimensions

Ew 153.5 mm Roller Circumscribed Circle Diameters
s 2.7 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 126.5 mm Diameter of Shaft Abutment
d1a(min.) 128 mm Diameter of Shaft Abutment
Da(min.) 156 mm Diameter of Housing Abutment
Da(max.) 158.5 mm Diameter of Housing Abutment
ra(max.) 1 mm Radius of Shaft or Housing Fillet

Additional information

CC1(max.) 30 μm Clearance in Bearings with Cylindrical Bores
CC1(min.) 10 μm Clearance in Bearings with Cylindrical Bores
CC1(max.) 50 μm Clearance in Bearings with Tapered Bores
CC1(min.) 25 μm Clearance in Bearings with Tapered Bores
CC0(max.) 35 μm Clearance in Bearings with Tapered Bores
CC0(min.) 20 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. 25 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. 10 μm Clearance in Bearings with Tapered Bores
8.4 g/brg Recommended Grease Quantities

Holes Dimensions

dh 3 mm Hole Diameter
W 6 mm Oil Groove Width
m 4 Number of Holes

Mass

2.62 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NN49
NSK Product Type Super Precision Bearing
Designations NN4924MBKR

© NSK Ltd.

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