611-4486 RS compatible Medium Duty Leveling Footmaster Castors are unique in their function allowing movement on a swivel castor and positioning on an anti vibration rubber pad by an integral Ratchet adjustment. With a die cast aluminum body these sturdy multifunctional castors can take a load of 250kg when stationery on the rubber pad and 125kg when moving on the castor wheel. With adjustment using the integral ratchet the castor can move from 82mm to 92mm hieight adjustment. Attachment to machinery and equipment is easily done by a forged steel top plate.