Sumitomo Drive Technologies is on the move supplying quality power transmission products. As one of the largest speed reducer manufacturers and global leader in power transmission innovation, we are ISO 9001:2000 certified. Our experience with a variety of applications as well as our global presence is unmatched, and we are committed to ensuring the highest quality products and customer service. Check our inventory of concentric, right angle, offset parallel, precision & large industrial gearboxes, gearmotors, gearheads & speed reducers. Plus, our AC drives & more.