Worm wheel the highest level of standard in manufacturing of worm gears in gearboxes. Right from the design of gearbox, material selection to manufacturing practice of worm gear box and gear motor. Small Worm Gearbox Models like C.D. 50, 60, 75, 85, 100 mm and Ratio 301 or 401 are usually available in stock or can be made on short notice by customer.