PU tyres on nylon rim, wheel x width 200 x 50 mm, 2+ items, fixed castor. Supplied = assembled. Wheel diameter = 200 mm. Structure = fixed castor. Wheel material = polyurethane (PU) Material of rim = nylon. Housing material = stainless steel. Max. load at 4 km/h = 300 kg. Type of mounting = with top plate. Wheel width = 50 mm. Overall height = 235 mm. Wheel bearing = plain bearing. Temperature resistance = -40 C to +80 C. Screw hole diameter = 12 mm. Hub length = 59 mm. Hub bore = 20 mm. Fixed castor plate dimensions = 135x110 mm. Swivel castor plate dimensions = 135x110 mm. Screw hole spacing = 105x76/84 mm. Shore hardness = 95 A. Plain bearing in stainless steel. With stainless steel housing. Do not damage floors, non-marking. Largely resistant against many thinned oils, greases, and chemicals. Hardness 95 Shore A. Temperature resistant from -40 C to +80 C. Non marking polyurethane castors, red. Stainless steel housing (AISI 304) , swivel bearing with dual turntable bearings.