... biaxil this worm gear box is high torque and low temperature rise and low noise.We have full series of worm gear boxes, NMRV25 ... , NMRV30,NMRV40, NMRV50,NMRV63,NMRV75,NMRV90,NMRV110, NMRV130. More data of worm gear box is needed ... , please kindly contact with me.Please check the data of NMRV25 as following details. NMRV25 worm gear box