MITRPAK supplies both standard and specialized spiral bevel gear drives to many different industries throughout the world. Our engineers can adapt our standard drives to meet the specifications of each client, and each special application. Here are the special application options for MITRPAK drives. Base Material and Coating Options Machined Housings and Shafts Grease and Shaft Seals Aluminum Housing and Bearing Locknuts - Aluminum’s natural properties make it a great material for washdown applications. Unlike steel, aluminum will not corrode (rust) and wash away. Aluminum will oxidize but during the oxidation process it actually forms a protective coating or skin on the surface of the component that resists further oxidation. Aluminum is also a good base material for application of other coating treatments. Hard Anodizing -is typically used on drives for the food and chemical processing industries. The coating provides an electrochemical aluminum oxide coating on the outer surface of components providing a hard, corrosive-resistant surface suitable for harsh environments and caustic washdown environments