Torque calibration equipment
Norbar Torque Tools
Torque is generated by the application of a known force at a known radius from the centre of rotation of the torque transducer.
Designed to remove potential sources of measurement error, these beams can be used to calibrate Norbar torque transducers, and torque transducers from other manufacturers (where design permits), as well as mechanical test devices. UKAS length certification is provided with each beam.
The Beams are designed with square drives machined to the top limit of ISO 2725:1987. This minimises any play between the beam and the transducer. However, a combination of square drive tolerances, misalignment of fittings and elastic rotation of the transducer shaft inevitably cause the beam to rotate from the horizontal under load.
Norbar's Radius Ended Beams are designed with a /-8% degree usable arc within which the calibration accuracy is unaffected.
Additionally the beams are designed to apply load on a vertical plane which cuts through the square drive inside the transducer. This minimises bending moments on the transducer and, for safe operation, ensures that the beam will not fall out of the transducer.
