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NN49/630K

Double-Row Cylindrical Roller Bearings
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Parts Number
NN49/630KCC9P4 Double-Row Cylindrical Roller Bearings
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Parts Number

NN49/630KCC9P4

Boundary Dimensions

NN: Inner ring rib type Bearing Type
d 630 mm Bore diameter
D 850 mm Outside diameter
B 218 mm Width
r(min.) 6 mm Chamfer Dimension

Basic Load Ratings

Cr 4200 kN Basic Dynamic Load Rating
C0r 11400 kN Basic Static Load Rating

Speeds

Grease 800 min-1 Limiting Speed
Oil (Oil-air) 1000 min-1 Limiting Speed

Dimensions

Ew 793 mm Roller Circumscribed Circle Diameters
s 2.8 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 656 mm Diameter of Shaft Abutment
d1a(min.) 674 mm Diameter of Shaft Abutment
Da(min.) 796 mm Diameter of Housing Abutment
Da(max.) 824 mm Diameter of Housing Abutment
ra(max.) 5 mm Radius of Shaft or Housing Fillet

Additional information

CC1(max.) 115 μm Clearance in Bearings with Cylindrical Bores
CC1(min.) 30 μm Clearance in Bearings with Cylindrical Bores
CC1(max.) 230 μm Clearance in Bearings with Tapered Bores
CC1(min.) 115 μm Clearance in Bearings with Tapered Bores
CC0(max.) 145 μm Clearance in Bearings with Tapered Bores
CC0(min.) 85 μm Clearance in Bearings with Tapered Bores
CC9(max.) 115 μm Clearance in Bearings with Tapered Bores
CC9(min.) 55 μm Clearance in Bearings with Tapered Bores

Holes Dimensions

dh 12 mm Hole Diameter
W 20 mm Oil Groove Width
m 4 Number of Holes

Mass

328 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NN49
NSK Product Type Super Precision Bearing
Designations NN49/630K

© NSK Ltd.

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