Boston Gear 200 Series Optimount combines the unique benefits of a shaft mount gear drive but also the flexibility of a base mounted reducer. Because of its precision machined external surfaces, the 200 Series can be integrated directly into an OEM piece of equipment or, with the addition of an output shaft kit and horizontal/vertical base, be converted to a parallel shaft base mounted gear drive. And don’t forget Reducer Express! Boston Gear revolutionary premium free guaranteed shipment program.Max Output Torque Capacity2851Pre-LubricatedNoRatio4:1Max Input HP10ReductionSingleOutput RPM @1750431.0TypeHorizontal Base w/ Input FlangeOutput Shaft StyleProjectingInput Motor HP10Product Family200 SERIESProduct DescriptionF247 Parallel Shaft Helical Reducer, 4:1 Ratio, Horiz. BaseRated Efficiency98%Assembly TypesH2Input Frame SizeB11 - 210TC/250UCInput StyleNEMA C-Face FlangeBase Mounting AttachmentHorizontal BaseWeight243Recommended LubricationKlubersynth UH1 6-460Family Id30,087AGMA Service ClassIIUnit Of MeasureEnglishOutput Shaft O.D./Bore Size2.125