• Standard motor mounting fixings
  • Universal motor mounting
  • Static motor installation only
  • Dust proof construction
  • Custom ranges
  • Traceable calibration with certificate included in the standard price

F326 Reaction Torque Transducer

The F326 fits between a motor and its mounting structure acting as a low profile coupling or adaptor plate. The motor shaft passes through the centre of the F326, the resultant torque reaction on the motor stator is equal and opposite to the shaft torque. Torque is transmitted from the motor stator through the F326 transducer to the earth structure or chassis.

This makes the F326 suitable for many process applications, examples are;

  • Bulk powder handling - mass flow measurement
  • Rheology - liquid viscosity measurement
  • Mechanical handling - conveyor belt drive torque

F326 transducers can be designed for most motor drive applications where the motor is itself static. We are happy to design variants of this transducer to meet your specific requirements. Please consult our engineering department.

Details of all our loadcell families can be found in the Loadcell Specifier Guide.

Ordering Codes

See the loadcell ordering code sheet for more details. Add range in the required force units.

Most F326 loadcells are manufactured to special requirements and are given an F326-Zxxxx number.

F326 Specification

Parameter Value Unit
Non-linearity - Terminal ±0.1 % RT
Hysteresis ±0.4 % RT
Creep - 20 minutes ±0.1 % AT
Repeatability ±0.05 % RT
Rated output - Nominal 2.1 mV/V
Rated output - Rationalised 2.0 mV/V
Rationalisation tolerance ±0.5 % RT
Zero load output ±4 % RT
Temperature effect on rated output per °C ±0.005 % AT
Temperature effect on zero load output per °C ±0.005 % RT
Temperature range - Compensated -10 to +50 °C
Temperature range - Safe -10 to +80 °C
Excitation voltage - Recommended 10 V
Excitation voltage - Maximum 20 V
Bridge resistance 700 Ω
Insulation resistance - Minimum at 50Vdc 500
Structural stiffness Range dependant N/m
Sealing Dust proof  
Weight - Nominal (excluding cable) 8.5 kg

The standard range is manufactured in aluminium alloy.


  1. AT = Applied torque.
  2. RT = Rated torque.
  3. Temperature coefficients apply over the compensated range.
  4. The motor mass can create an initial zero change and is replicated during our calibration.


The loadcell is fitted with 2 metres of PVC insulated 4 core screened cable type 16-2-4C.

Excitation + = Red, Excitation - = Blue, Signal + = Yellow, Signal - = Green, Screen = Orange.

The screen is not connected to the loadcell body.

Additional Information

Outline Outline drawing of the product.
Stock List Loadcell availability.
PDF data-sheet Printable data-sheet. Right click on the link to download the file.