Polyurethane tyre on nylon rim, wheel x width 160 x 40 mm, swivel castor with wheel stops. Supplied = assembled. Wheel diameter = 160 mm. Structure = swivel castor with double stop. Wheel material = polyurethane (PU) Material of rim = nylon. Housing material = steel. Max. load at 4 km/h = 350 kg. Type of mounting = with top plate. Wheel width = 40 mm. Overall height = 200 mm. Wheel bearing = roller bearing. Temperature resistance = -40 °C to +80 °C. Swivel castor offset = 55 mm. Screw hole diameter = 11 mm. Hub length = 58 mm. Hub bore = 20 mm. Fixed castor plate dimensions = 137x115 mm. Swivel castor plate dimensions = 137x105 mm. Screw hole spacing = 105x75 - 80 mm. Housing surface = galvanised and chrome-plated. Shore hardness = D40. On nylon rim. Extremely durable for high performance, low rolling resistance. Largely resistant against many thinned oils, greases, and chemicals. Hardness Shore D40. Temperature resistant from -40 °C to +80 °C. Swivel bearing with double ball race, swivel bearing protection.