Nylon wheel, sheet steel housing, wheel x width 100 x 35 mm, swivel castor, ball bearings. Supplied = assembled. Wheel diameter = 100 mm. Structure = swivel castor. Wheel material = plastic - nylon. Material of rim = nylon. Housing material = steel. Max. load at 4 km/h = 350 kg. Type of mounting = with top plate. Wheel width = 35 mm. Overall height = 128 mm. Wheel bearing = ball bearing. Temperature resistance = -20 C to +80 C. Swivel castor offset = 40 mm. Screw hole diameter = 9 mm. Hub length = 40 mm. Hub bore = 12 mm. Fixed castor plate dimensions = 100x87 mm. Swivel castor plate dimensions = 105x85 mm. Screw hole spacing = 80x60 mm. Housing surface = galvanised and chrome-plated. Extremely durable. Reinforced housing. High maximum load. Temperature resistant from -20 C to +80 C. Swivel bearing with hardened double ball race, swivel bearing protection. Lubrication nipple, fork head without central bolt.