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Calculations
Bearing life
This functionality is in
beta stage
.
Bearing life
public
Basic rating life of a ball bearing in hours.
Input
Rotational speed
$ n = 1450 \; \; rpm $
Result
Ball bearing hours
$$ L_{bearing_{hr_{ball}}} = {{10 ^ 6 \over \left({ 60 \cdot n }\right)} \cdot L_{bearing_{rev_{ball}}}} \; \; , {h} $$
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L_{bearing_{hr_{ball}}} = 10 ^ 6 / ( 60 * n ) * L_{bearing_{rev_{ball}}}
Preceding calculations
2
Equivalent dynamic bearing load
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public
Radial load factor $$ X = 1 \: $$ Radial load $$ F_r = 1 \: kN $$ Axial load factor $$ Y = 1 \: $$ Axial load $$ F_a = 1 \: kN $$
Equivalent dynamic load
$$ P_{dyn} = {X \cdot F_r + Y \cdot F_a} \:, kN $$
Bearing life
Managed by:
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public
Basic dynamic load rating $$ C = 10 \: kN $$ Reliability factor $$ a_1 = 1 \: $$
Ball bearing revolutions
$$ L_{bearing_{rev_{ball}}} = {a_1 \cdot \left({ {C \over P_{dyn}} }\right) ^ 3} \:, 10^6 revolutions $$
Managed by:
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Calculation