This castor manufactured by Richmond Wheel and Castor Co. has a rigid frame and features a Nylon 50mm wheel. This castors stock code is R263. The top load capacity of the R263 is 50kg. The rigid castor wheel is fitted with stainless steel ball bearings and is mounted with the baseplate. This castor can be also purchased with a swivel frame (part number S262). The outside diameter of the wheel is 50mm, the wheel overall width is 24mm.