CALM63 Aluminum worm Gear - 56C Frame, 40:1 Ratio, 44.0 RPM

Worldwide Electric CALM63 40/1 -56c aluminum (ALM) series worm gear reducer is  a direct drop into the Motovario NMRV series, designed with metric center distances and NEMA C-Face quill style motor input flanges which allow users a much greater supply of off-the-shelf standard NEMA motor input choices. Metric center distances allow for easy installation into existing applications, while imperial output bore dimensions allow for the use of standard U.S. imperial dimension head shafts and key sizes.