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
)
inches
Inner Diameter (D
I
)
inches (enter 0 for solid shaft)
Number of Active Gages (N)
(4 for full bridge)
Gage Factor (GF)
(supplied with gages)
Modulus of Elasticity (E)
Mpsi (30 Mpsi for steel)
Poisson Ratio (v)
(0.3 for steel)
Trans. Sensitivity (S
trans
)
Torque
Torque
Scale Revolution Power Range
Optional
Full Scale Torque (T
fs
)
ft-lb
Desired Full Power Scale (P
ref
)
hp
Set RPM switches in MCU to this value
RPM Factor
hp (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 Horsepower
hp
Enter RPM
RPM
Torque
Torque
Enter Torque
ft-lb
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*48000)`
`"RPM Factor"=(P_(fs)*5252)/T_(fs)`
`"Power (in hp)"=(T * "rpm")/5252`
`1 " hp" = 0.746 " kW"`
