We offer several housing options for spiral bevel gearboxes. The Tandler spiral bevel gearbox series is offered in a variety of housing materials and surface finishes. This provides optimal design versatility when environment or weight is a critical consideration. Housing options available include: Nickel Plating QPQ -Paint Protection Standard Cast Iron Aluminum Stainless Steel Catalog library Call us with your protection requirements at 630-980-1133. We are standing by, ready to discuss your needs and help select the best option for your unique application. https://www.youtube.com/watch?v=yhEILgtDfmw