Sumitomo CHVJS IR SM-Cyclo Inline Gear Reducer 165:1 Ratio 10 RPM 68600In-Lb

Frame Size: 8-1/2" Bolt circle
Ratio: 165
Input RPM: 1750
Output RPM: 10.6
Input Shaft Diameter: 7/8"
Output Shaft Diameter: 4-1/4"
Output Shaft Orientation (Left, Right, Inline): Inline
Input H.P: 13.5
Output Torque: 68600
Does gearbox include breather vent? Yes No: Yes
New old stock surplus item from spare parts storage.  Has some shelf wear.
There is no oil inside this unit.
Not sure on the input frame size. 7/8" input shaft. 8-1/2" bolt circle.