Johnson Duramax 870505700 Non-Metallic Sleeve Cutless Bearings feature a dense structure of engineered reinforced thermoset plastic. 870505700 non-metallic cutlass bearings are ideally suited for installations wherever corrosion or electrolysis is a problem. Duramax Marine is the world's largest supplier of non metallic bearings and each is made in the USA. Order your 870505700 cutless bearing today and save. The measurements for the 870505700 cutlass bearing are: Shaft Size: 50 mm Outside Diameter: 70 mm Length: 200 mm