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NNU49/750K

Double-Row Cylindrical Roller Bearings
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Parts Number
NNU49/750KE44CC1P5 Double-Row Cylindrical Roller Bearings
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Parts Number

NNU49/750KE44CC1P5

Boundary Dimensions

NNU: Outer ring rib type Bearing Type
d 750 mm Bore diameter
D 1000 mm Outside diameter
B 250 mm Width
r(min.) 6 mm Chamfer Dimension

Basic Load Ratings

Cr 5500 kN Basic Dynamic Load Rating
C0r 15900 kN Basic Static Load Rating

Speeds

Grease 700 min-1 Limiting Speed
Oil (Oil-air) 800 min-1 Limiting Speed

Dimensions

Ew 826 mm Roller Circumscribed Circle Diameters
s 7.1 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 776 mm Diameter of Shaft Abutment
d1a(min.) 797 mm Diameter of Shaft Abutment
Da(max.) 974 mm Diameter of Housing Abutment
ra(max.) 5 mm Radius of Shaft or Housing Fillet

Additional information

CC1(max.) 145 μm Clearance in Bearings with Cylindrical Bores
CC1(min.) 35 μm Clearance in Bearings with Cylindrical Bores
CC1(max.) 290 μm Clearance in Bearings with Tapered Bores
CC1(min.) 145 μm Clearance in Bearings with Tapered Bores
CC0(max.) 190 μm Clearance in Bearings with Tapered Bores
CC0(min.) 110 μm Clearance in Bearings with Tapered Bores
CC9(max.) 150 μm Clearance in Bearings with Tapered Bores
CC9(min.) 70 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

530 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NNU
NSK Product Type Super Precision Bearing
Designations NNU49/750K

© NSK Ltd.

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