Polyurethane tyre on nylon rim, with roller bearing, wheel x W 160 x 40 mm. Supplied = assembled. Structure = wheel. Wheel material = polyurethane. Material of rim = nylon. Wheel diameter = 160 mm. Max. load at 4 km/h = 350 kg. Wheel width = 40 mm. Wheel bearing = roller bearing. Temperature resistance = -40 °C to +80 °C. Hub length = 58 mm. Hub bore = 20 mm. Product type = wheels. 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.