These are bearings that are used to support the rotary kilns and ball mills in the cement and mineral industries. These bearings are typically located at the ends of the kiln or mill, and are designed to support the equipment while allowing for easy maintenance and replacement. The bearings consist of a steel shoe, which is mounted on a metal slide plate, which in turn is supported by a system of rollers. The rollers are typically lubricated with oil or grease to reduce friction and wear. The slide shoe bearing design allows for easy replacement of the bearing, as it can be removed and replaced without having to disassemble the entire kiln or mill. These bearings are typically used in heavy machinery and industrial equipment such as mills and kilns, and are self-aligning bearings.