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NNU4926MBKR

Double-Row Cylindrical Roller Bearings
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Parts Number
NNU4926MBKRE44CC1P5 Double-Row Cylindrical Roller Bearings
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Parts Number

NNU4926MBKRE44CC1P5

Boundary Dimensions

NNU: Outer ring rib type Bearing Type
d 130 mm Bore diameter
D 180 mm Outside diameter
B 50 mm Width
r(min.) 1.5 mm Chamfer Dimension

Basic Load Ratings

Cr 315 kN Basic Dynamic Load Rating
C0r 545 kN Basic Static Load Rating

Speeds

Grease 4900 min-1 Limiting Speed
Oil (Oil-air) 5900 min-1 Limiting Speed

Dimensions

Ew 144 mm Roller Circumscribed Circle Diameters
s 1.2 mm Axial Displacement

Abutment and Fillet Dimensions

da(min.) 138 mm Diameter of Shaft Abutment
d1a(min.) 140 mm Diameter of Shaft Abutment
Da(max.) 172 mm Diameter of Housing Abutment
ra(max.) 1.5 mm Radius of Shaft or Housing Fillet

Additional information

CC1(max.) 35 μm Clearance in Bearings with Cylindrical Bores
CC1(min.) 10 μm Clearance in Bearings with Cylindrical Bores
CC1(max.) 60 μm Clearance in Bearings with Tapered Bores
CC1(min.) 30 μm Clearance in Bearings with Tapered Bores
CC0(max.) 40 μm Clearance in Bearings with Tapered Bores
CC0(min.) 25 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. 30 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. 15 μm Clearance in Bearings with Tapered Bores
11 g/brg Recommended Grease Quantities

Holes Dimensions

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

Mass

3.48 kg Mass(approx.)
CAD
More Information
NSK Product Type2 SP_CRB_DR_NNU
NSK Product Type Super Precision Bearing
Designations NNU4926MBKR

© NSK Ltd.

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