US Patent 8162133 Support device for conveying heavy loads

A support device for conveying heavy loads includes a support body and a roller body which revolves around the support body, wherein the roller body includes a series of support rollers and distancing rollers, the distancing rollers have a smaller diameter than the support rollers, and the distancing rollers in each case space consecutive support rollers from one another, and the support device is provided for supporting a load which moves along a support region, and the roller body at least in the support region is covered in its whole width by a belt, and thus in the support region, the support rollers roll on the support body and on the belt.