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Use these equations and calculator to determine the Inertia of a
tangent drive system. Tangent drive may be the following: Timing belt and pulley,
Chain and sprocket, rack and pinion, etc...
Tangent Drive System
Conveyor System
Equation:
Motor Speed:
Load Torque:
Friction Torque:
Load Inertia:
Total Inertia
Where:
| Sm = |
Motor Speed, rpm |
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Vl = |
Load Speed, rpm |
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R = |
Radius, in |
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Fl = |
Load Force, lb |
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Tf = |
Friction Torque, in-lb |
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Ff = |
Friction Force, lb |
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Tl = |
Torque of Load, lb-in |
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Jl = |
Load Inertia, lb-in.-sec2 |
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Wlb = |
Weight of load plus belt, lb |
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g = |
Gravitational constant, 386 in./sec2 |
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Jp1 = |
Pulley Inertia, lb-in.-sec2 |
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Jp2 = |
Pulley inertia, lb-in.-sec2 |
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Jm = |
Motor inertia, lb-in.-sec2 |
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Jt = |
Total Inertia, lb-in.-sec2 |
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