This is a rigid frame castor and is fitted with a polyurethane wheel. This rigid castor is in the 300 series plate range and can hold loads up to 200kg. It is assembled with roller bearings on the castors axle and is baseplate mount. This castors rigid frame only allows linear movement unless used with swivel castors. The outside diameter of the polyurethane wheel is 100mm, the wheel width is 35mm.