Nylon wheel, sheet steel housing, wheel x width 150 x 40 mm, swivel castor, roller bearings. Supplied = assembled. Wheel diameter = 150 mm. Structure = swivel castor. Wheel material = plastic - nylon. Material of rim = nylon. Housing material = steel. Max. load at 4 km/h = 300 kg. Type of mounting = with top plate. Wheel width = 40 mm. Overall height = 185 mm. Wheel bearing = roller bearing. Temperature resistance = -20 C to +80 C. Swivel castor offset = 52 mm. Screw hole diameter = 11 mm. Hub length = 60 mm. Hub bore = 20 mm. Fixed castor plate dimensions = 135x114 mm. Swivel castor plate dimensions = 135x110 mm. Screw hole spacing = 105x75 - 80 mm. Housing surface = galvanised and chrome-plated. Maintenance free, smooth running. Hardwearing. Largely resistant against many thinned acid and alkaline solutions. Temperature resistant from -20 C to +80 C. Swivel bearing with double ball race, swivel bearing protection.