Shaft length 170mm Tube 140mm M2 thread This design of Deans Marine P R propshafts are watertight and do not leak any oil. The bearing housing has a roller bearing, the prop end has a brass bearing. The tube and shaft can be altered in length easily if required as the bearing housing is a separate item. Tubes are hardened brass WITH A LIGHTWEIGHT 4mm TUBE, shafts are in stainless steel.