Torsion test equipment

Comprising a first drive unit connected to the input shaft of the specimen, and a second driving unit which is connected to the output shaft of the specimen. First and second drive unit includes a servo motor, a speed reducer and outputting the decelerated rotation of the output shaft of the servo motor, the input shaft or the output shaft of the specimen is mounted, the specimen of the output of the speed reducer a chuck that transmitted to the input shaft or the output shaft, as well as transmits the output of the speed reducer to the chuck includes a torque sensor that detects a torque reduction gear is outputted, and a tachometer for detecting the rotational speed of the chuck.