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-LubricatedYesRatio18Max Input HP7.10Fan CooledNoUnit Of Measure ShowEnglishOutput RPM @175097.0Output Shaft StyleHollow O/PProduct Family800BR SERIESExact Gear Ratio18.49Product DescriptionS862BR-D/R RED 18:1 Ratio, No Base, "H" ASSYRated Efficiency91%BaseNo BaseMax Output Torque Cap4208Input Frame SizeNoneInput StyleShaft InputReduction StagesDoubleWeight70Motor HP5Recommended LubricationKlubersynth UH1 6-460Family Id30,312AGMA Service ClassIOutput Shaft O.D./Bore Size1.5