Boston Gear 800BR Series helical worm gear drives are heavy duty helical gear drives with long life performance features and simplified maintenance. The 800BR Series comes in double and triple reduction ratios from 8:1 through 900:1 and a maximum 10HP rating. As always, the 800BR Series is available via Reducer Express.Pre-LubricatedYesRatio160Max Input HP1.19Fan CooledNoUnit Of Measure ShowEnglishOutput RPM @175010.0Output Shaft StyleHollow O/PProduct Family800BR SERIESExact Gear Ratio164.444Product DescriptionS852BR-D/R RED 160:1 Ratio, No Base, "H" ASSYRated Efficiency69%BaseNo BaseMax Output Torque Cap4738Input Frame SizeNoneInput StyleShaft InputReduction StagesDoubleWeight39Motor HP1Recommended LubricationKlubersynth UH1 6-460Family Id30,312AGMA Service ClassIOutput Shaft O.D./Bore Size1.375