Hydraulic Motor Speed from MPH / KPH

IMPERIAL		METRIC
Hydraulic Motor Speed from MPH		Hydraulic Motor Speed from KPH
The motor speed is obtained by multiplying 168 by the ratio of the power train by the miles per hour and dividing this sum by the rolling radius of the tyre. Where: 168 = Factor RPM = Revolutions per minute of engine r = Rolling radius of loaded drive tyre in inches R = Overall gear reduction including both axle and transmission MPH = Vehicle speed in miles per hour Example: Find the motor speed where the overall gear reduction is 10, vehicle speed is 15 MPH and rolling radius of driving tyre is 15 inches.		The motor speed is obtained by multiplying 2651.51 by the ratio of the power train by the kilometres per hour and dividing this sum by the rolling radius of the tyre. Where: 2651.51 = Factor RPM = Revolutions per minute of engine r = Rolling radius of loaded drive tyre in millimetres R = Overall gear reduction including both axle and transmission KPH = Vehicle speed in kilometres per hour Example: Find the motor speed where the overall gear reduction is 10, vehicle speed is 20 KPH and rolling radius of driving tyre is 400 millimetres.

IMPERIAL

METRIC

Hydraulic Motor Speed from MPH

Hydraulic Motor Speed from KPH

The motor speed is obtained by multiplying 168 by the ratio of the power train by the miles per hour and dividing this sum by the rolling radius of the tyre.

Where:
168 = Factor
RPM = Revolutions per minute of engine
r = Rolling radius of loaded drive tyre in inches
R = Overall gear reduction including both axle and transmission
MPH = Vehicle speed in miles per hour

Example:
Find the motor speed where the overall gear reduction is 10, vehicle speed is 15 MPH and rolling radius of driving tyre is 15 inches.

The motor speed is obtained by multiplying 2651.51 by the ratio of the power train by the kilometres per hour and dividing this sum by the rolling radius of the tyre.

Where:
2651.51 = Factor
RPM = Revolutions per minute of engine
r = Rolling radius of loaded drive tyre in millimetres
R = Overall gear reduction including both axle and transmission
KPH = Vehicle speed in kilometres per hour

Example:
Find the motor speed where the overall gear reduction is 10, vehicle speed is 20 KPH and rolling radius of driving tyre is 400 millimetres.

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