This castor from Richmond is designed with a swivel frame and has a polyurethane 100mm wheel. The order code for this castor S4044B. The maximum capacity of this castor is 200kg. The swivel castor is assembled with roller bearings on the castors axle and is baseplate mount. This caster is fitted with a brake, however if you need it without a brake, search for S4044. The swivel frame of this castor allows the castor to swivel 360°. The overall wheel diameter is 100mm, the wheel overall width is 35mm and you can order separately (See PU4408).