SEW-EURODRIVE S37A Gear Reducer

The SEW-EURODRIVE S37A Gear Reducer is a size-37 member of SEW’s S-series helical-worm gear units, offering a 13.39:1 reduction ratio. In the S-series, a first-stage helical gear set is paired with a second-stage worm gear to deliver torque multiplication within a compact housing. The S37A designation identifies the size-37 family within this line, aligning with SEW-Eurodrive’s modular gear-unit system used across the S-series lineup. The 13.39:1 ratio reduces input speed while increasing output torque, enabling controlled speed reduction in constrained spaces. As part of SEW’s family of S-series gear units, the S37A adheres to the size-based design conventions of the line, supporting consistent mounting and interface geometry with other S-series components. This model serves industrial drive configurations requiring reliable, moderate reduction and torque in a compact footprint.