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Calculations
Bearing life
Calculation
This functionality is in
beta stage
.
Bearing life Calculation
public
Equivalent dynamic bearing load
Equivalent bearing load as a result of radial and axial bearing loads
Radial load factor
$X = $
Integers or decimals only. Maximum 10 characters
Minimum value = 0.001
Radial load
$F_r = $
$kN$
Integers or decimals only. Maximum 10 characters
Minimum value = 0.001
Axial load factor
$Y = $
Integers or decimals only. Maximum 10 characters
Minimum value = 0.001
Axial load
$F_a = $
$kN$
Integers or decimals only. Maximum 10 characters
Minimum value = 0.001
Equivalent dynamic load
$$ P_{dyn} = {X \cdot F_r + Y \cdot F_a} $$
Bearing life
Basic rating life of a ball bearing in revolutions.
Basic dynamic load rating
$C = $
$kN$
Integers or decimals only. Maximum 10 characters
Minimum value = 0.001
Reliability factor
$a_1 = $
Integers or decimals only. Maximum 10 characters
Minimum value = 0.001
Ball bearing revolutions
$$ L_{bearing_{rev_{ball}}} = {a_1 \cdot \left({ {C \over P_{dyn}} }\right) ^ 3} $$
Values for a
1
Reliability %
a
1
90
1
95
0.64
96
0.55
97
0.47
98
0.37
99
0.25
Bearing life
Basic rating life of a ball bearing in hours.
Rotational speed
$n = $
$rpm$
Integers or decimals only. Maximum 10 characters
Minimum value = 0.001
Ball bearing hours
$$ L_{bearing_{hr_{ball}}} = {{10 ^ 6 \over \left({ 60 \cdot n }\right)} \cdot L_{bearing_{rev_{ball}}}} $$
Calculate
$L_{bearing_{hr_{ball}}} = $
${h}$
Integers or decimals only. Maximum 10 characters
Minimum value = 0.001
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