Set of polyurethane tyres on nylon rims, 2 swivel castors with double stops, 2 fixed castors, wheel x width 80 x 32 mm. Supplied = assembled. Wheel diameter = 80 mm. Structure = swivel castor with double stop, fixed castor. Scope of delivery = 2 swivel castors with double stops, 2 fixed castors. Wheel material = polyurethane (PU) Material of rim = nylon. Housing material = steel. Max. load at 4 km/h = 100 kg. Type of mounting = with top plate. Wheel width = 32 mm. Overall height = 108 mm. Wheel bearing = roller bearing. Temperature resistance = -40 °C to +80 °C. Swivel castor offset = 44.5 mm. Screw hole diameter = 9 mm. Hub length = 44.4 mm. Hub bore = 12 mm. Fixed castor plate dimensions = 103x85 mm. Swivel castor plate dimensions = 105x85 mm. Screw hole spacing = 60x70 - 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. Roller bearings. Especially cost effective when purchased as a set.