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Tractive Effort |
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IMPERIAL Tractive Effort The tractive effort is obtained by multiplying the torque by the total ratio of power train and dividing this sum by the rolling radius of the driving tyres.
Where:T= Motor torque in lb/inches R = Overall gear reduction including both axle and transmission r = Rolling radius of loaded driving tyre in inches. Example:Find the tractive effort where the rolling radius of driving tyres is 15 inches, the total ratio of power train is 10, the motor torque is 1000 lb in
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METRIC Tractive Effort The tractive effort is obtained by multiplying the torque by the total ratio of power train and dividing this sum by the rolling radius of the driving tyres.
Where:T= Motor torque in kg/millimetres R = Overall gear reduction including both axle and transmission r = Rolling radius of loaded driving tyre in millimetres Example:Find the tractive effort where the rolling radius of driving tyres is 400 millimetres, the total ratio of power train is 10, the motor torque is 115 N m
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