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Handbook / Bearings

NSK 7208 BWDF ISO

Double angular contact ball bearing (duplex)

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Brand
NSK
Standart
ISO
Principal dimensions
d,  Inner diameter,  mm
40
D,  Outside diameter,  mm
80
B,  Width,  mm
36
m,  Weight,  kg
0.766
To specifications

Specifications

Type of product
Bearing
Unit of measure
Metric
Type of friction
Rolling
Rolling elements
Balls
Direction of the perceived load
Radial-thrust
Number of rows
Double row
Bore
Cylindrical
Material
Steel
Cage
Steel
d (mm) - Bore diameter
40
D (mm) - Outside diameter
80
B (mm) - Width
36
m (kg) - Mass
0.766
r1,2 (mm) - Chamfer dimension (Inner ring) (min)
1.1
da (mm) - Diameter of shaft abutment (min)
47
ra (mm) - Fillet radius (max)
1
ra (mm) - Fillet radius (max)
1
C (kN) - Basic dynamic load rating (radial)
52000
C0 (kN) - Basic static load rating (radial)
46000
r1,2 (mm) - Chamfer dimension (Outer ring) (min)
1.1
r3,4 (mm) - Chamfer dimension (min)
0.6
Grease (r/min)
4300
Oil (r/min)
6000
db (mm) - Diameter of shaft abutment (min)
45
Da (mm) - Diameter of housing abutment (max)
73
Db (mm) - Diameter of housing abutment (max)
75
a (mm) - Distance pressure point
34.2
a (mm) - Distance pressure point
32.3

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