Boston Gear's Altra Industrial Motion F713-40-B5-H is a 40:1 right-angle worm gear speed reducer in the 56C-frame family, designed for compact machinery where significant speed reduction and torque multiplication are required. The unit features a center distance of about 1.33 inches and a 0.625-inch output shaft diameter, with a projecting output shaft on the H variant. Catalog data list a 0.31 hp input, 0.21 hp output, and up to 307 in-lb of torque, yielding an approximate 43.8 rpm output under typical input speeds. This model is part of the F713 family, representing a single-reduction worm drive that preserves a right-angle configuration in a compact package.
