IronHorse shaft mount gearboxes (speed reducers) feature shafts and gears manufactured from the highest grade steel, case hardened and precision ground to AGMA standards for long lasting durability. The gearbox shafts have reinforced double lip seals to protect against contamination and prevent oil from escaping; premium ball and tapered roller bearings provide smooth operation and lower noise. Extended gear centers ensure tooth contact and provide consistent operation. Housings are 100% cast iron to provide industrial grade protection for the life of the unit. Gearboxes are available in 9:1, 15:1 and 25:1 gear ratios and in frame sizes from 2 to 5. Uses include reducing output speed, increasing torque, changing drive direction, and/or running two loads from one motor. Shaft mount gearboxes start at $616.00 (with torque arm included) and have a 1-year warranty.