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NNU49/500K

Double-Row Cylindrical Roller Bearings
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Parts Number
NNU49/500KCC9P4Y Double-Row Cylindrical Roller Bearings
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Parts Number

NNU49/500KCC9P4Y

Boundary Dimensions

NNU: Outer ring rib type Bearing Type
d 500 mm Bore diameter
D 670 mm Outside diameter
B 170 mm Width
r(min.) 5 mm Chamfer Dimension

Basic Load Ratings

Cr 2720 kN Basic Dynamic Load Rating
C0r 7200 kN Basic Static Load Rating

Speeds

Grease 1000 min-1 Limiting Speed
Oil (Oil-air) 1200 min-1 Limiting Speed

Dimensions

Ew 551 mm Roller Circumscribed Circle Diameters
s 3.8 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 520 mm Diameter of Shaft Abutment
d1a(min.) 534 mm Diameter of Shaft Abutment
Da(max.) 650 mm Diameter of Housing Abutment
ra(max.) 4 mm Radius of Shaft or Housing Fillet

Additional information

CC1(max.) 95 μm Clearance in Bearings with Cylindrical Bores
CC1(min.) 25 μm Clearance in Bearings with Cylindrical Bores
CC1(max.) 190 μm Clearance in Bearings with Tapered Bores
CC1(min.) 95 μm Clearance in Bearings with Tapered Bores
CC0(max.) 120 μm Clearance in Bearings with Tapered Bores
CC0(min.) 70 μm Clearance in Bearings with Tapered Bores
CC9(max.) 95 μm Clearance in Bearings with Tapered Bores
CC9(min.) 45 μm Clearance in Bearings with Tapered Bores

Holes Dimensions

dh 10 mm Hole Diameter
W 18 mm Oil Groove Width
m 4 Number of Holes

Mass

157 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NNU
NSK Product Type Super Precision Bearing
Designations NNU49/500K

© NSK Ltd.

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