Nylon castor, wheel x width 125 x 45 mm, swivel castor with double stop, plain bearings. Supplied = assembled. Wheel diameter = 125 mm. Structure = swivel castor with double stop. Wheel material = plastic - nylon. Material of rim = nylon. Housing material = steel. Max. load at 4 km/h = 550 kg. Type of mounting = with top plate. Wheel width = 45 mm. Overall height = 170 mm. Wheel bearing = plain bearing. Temperature resistance = -40 C to +90 C. Swivel castor offset = 52 mm. Screw hole diameter = 11 mm. Hub length = 50 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. High maximum load. Extremely durable. Reinforced housing. Swivel bearing with double ball race, swivel bearing protection.