Vishal electromag industries provides a range of stepper motors and gear motors, gearboxes, etc. Vishal-syn geared synchronous/stepper motors are available with two types of gearboxes. General specifications: gearbox ratio available - 1: 3, 1:4, 1:6, 1:12, 1:15, 1:20, 1:60; geared output rpm available - 1, 3, 4, 5, 10, 15, 20; basic motor speed - 60 rpm; geared output efficiency - 60%; and gear material [spur gear] - metal. Dimensional features are:synchronous/stepper motor frame size 2.3" [motor dia 58 mm] is coupled with 80 x 73 x 17 mm gearbox. Synchronous or stepper motor frame size 3.4" and 4.2" [motor dia 86 and 108 mm] is coupled with cast aluminium gearbox.