These 200mm extra heavy duty polyurethane swivel castors made of a heavy duty pressed steel zinc plated, housing a polyurethane wheel on an aluminium centre. Each of these castors carry 800kgs each, overall height 240mm, 4 x M10 Bolt Fixing plate for easy attachment. This heavy duty swiveling castor wheel runs on ball journal bearings, making heavier loads easier to move. These castors are suitable for a range of heavy duty applications combine 4 of these castors to carry 2.4 tonnes castors. 200mm Heavy Duty Swivel Castors Polyurethane Aluminium Wheel 800kg