BINSFELD ENGINEERING INC.
Torque Calculators
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Units: ENGLISH
Units: METRIC
TorqueTrak
10K
TorqueTrak
TPM2
TorqueTrak
Revolution
Torque Strain
TorqueTrak Revolution
Torque Range Calculator
Nominal Torque Range
Outer Diameter (D
O
)
mm
Inner Diameter (D
I
)
mm (enter 0 for solid shaft)
Number of Active Gages (N)
(4 for full bridge)
Gage Factor (GF)
(supplied with gages)
Modulus of Elasticity (E)
N/mm
2
(206800 for steel)
Poisson Ratio (v)
(0.3 for steel)
Trans. Sensitivity (S
trans
)
Torque
Scale Revolution Power Range
Optional
Full Scale Torque (T
fs
)
N·m
Desired Full Power Scale (P
ref
)
kilowatt
Set RPM switches in MCU to this value
RPM Factor
kW (coresponds to 20 mA output)
Actual Full Scale Power (P
fs
)
NOTE: The Actual Full Scale Power is slightly different than the Desired Full Scale Power value because the RPM Factor is rounded to the nearest whole integer.
Torque & Power Conversions
Enter Power
kW
Enter RPM
RPM
Torque
Enter Torque
N-m
Enter RPM
RPM
Power
Power
Equations
`"Full Scale Torque", T_(FS)=(pi*E*(D_O^4 - D_I^4))/ (GF*N*(1+v)*D_O*4*10^6)`
`"RPM Factor"=(P_(fs)*9550)/T_(fs)`
`"Power (in kW)"=(T * "rpm")/9550`
`1 " hp" = 0.746 " kW"`
