The JRSTD series worm gearboxes have a motor flange and a hollow input shaft. As a result, it easy to mount IEC standardized motors on the worm gear reducers. The available flanges are of the type B5 (large flange with bottomless holes, for nut-bolt assembly), and B14a (small flange, wherein the reducer flange is mounted with bolts on the threaded holes of the motor flange).
Furthermore, special flanges are also available for hydraulic motors (i.a. OMM, OMP and OMR) as well as square flanges for servomotors and brushless DC motors.