Atlanta 14.5:1 High Performance Gear Reducer Unit w/Adjustable Backlash 206RPMRatio: 14. 5: 1 Input HP: 9. 4 Input RPM: 3000 Output RPM: 206. 89 Input shaft: DIN 5480 spline with a 32mm round shaft adaptor Output shaft diameter: 36mm Vent Not included Used Gear box in good condition, Aluminum Housing Approximate dimensions of main body not including bell shaped motor adaptor (If Included) Length: 10" Width: 6" Height: 8" All gear reducers must have a breather vent. This allows for expansion and contraction of the air within the