Bearing Service life

Bearing service life is calculated here in consideration of rating life or lubrication conditions.

Selected Bearing

Bearing Types
Angular contact ball bearings Matched pair Tandem With machined cage
Bearing No.
7308BDT FY Products detail
Boundary dimensions
40 x 90 x 46 mm
Dynamic load rating
80.6 kN
Static load rating
50.5 kN

Operating conditions

Required service lifehelp_outline
(h)
Reliability coefficient a1help_outline
Required safety coefficienthelp_outline
Contamination coefficient eChelp_outline
Viscosity during operationhelp_outline
(㎜2/s)
Extreme pressure additives

Step 1

Radial load
kN
Axial load
kN
Rotational frequency
min-1
Operating ratio
%

Step 2

Radial load
kN
Axial load
kN
Rotational frequency
min-1
Operating ratio
%

Step 3

Radial load
kN
Axial load
kN
Rotational frequency
min-1
Operating ratio
%

Step 4

Radial load
kN
Axial load
kN
Rotational frequency
min-1
Operating ratio
%

Step 5

Radial load
kN
Axial load
kN
Rotational frequency
min-1
Operating ratio
%

Step 6

Radial load
kN
Axial load
kN
Rotational frequency
min-1
Operating ratio
%

Step 7

Radial load
kN
Axial load
kN
Rotational frequency
min-1
Operating ratio
%

Step 8

Radial load
kN
Axial load
kN
Rotational frequency
min-1
Operating ratio
%

Step 9

Radial load
kN
Axial load
kN
Rotational frequency
min-1
Operating ratio
%

Step 10

Radial load
kN
Axial load
kN
Rotational frequency
min-1
Operating ratio
%

For those who have trouble selecting bearings

If you are not sure what bearing to choose,if you want to change to a more suitable bearing,Please contact JTEKT .

Temperature during operationhelp_outline
Standard Greese or Oil

temperature condition(1)

temperature(1)
(℃)
Viscosity(1)
(mm2/s)

temperature condition(2)

temperature(2)
(℃)
Viscosity(2)
(mm2/s)