Premium Stephan’s Speed Reducers are of substantial construction, combining rigidity with strength. The worm is of high-quality case-hardening steel, accurately generated, ground, and super-finished.
The worm wheel comprises of a phosphor bronze centrifugally cast rim of a substantial section welded to a rigid center, which is pressed and keyed to the shaft. Shafts are located on dual purpose bearings of ample capacity and having a substantial margin on output shafts for accommodating overhung loads. Lubrication is positive at all speeds, in either direction of rotation and apart from an occasional oil check, no attention is necessary for service.