CatalogSEW Eurodrive. KES.37 and RESF37 Series Stainless Steel Gear Units Edition 04/2010 16870727 / US. SEW-EURODRIVE—Driving the world. CatalogKES.37 and RESF37 Series Stainless Steel Gear Thu s the gear unit surfa ce is easy to clean and is chemical resistant. 1.2 Motor mounting The IEC and NEMA adapters also made of stainless steel allow for a