Optional Conduit Box # M1760007 is available. One Year Manufacture Warranty. Features: Precision machined in-line steel gears, with a first stage steel helical gear followed by spur-type gears. Lubrication is permanent semi-fluid grelease, reducing possibility of leakage.Output shafts have needle bearings for high load capacities. Shafts are hardened steel. Dayton Equivalent 6ML61. Can use with Leeson speed control 174307, 174308.