HRLK-ALST levelling castor, plate dimensions 100 x 85 mm, wheel 100 mm, max. load 230 kg. Supplied = assembled. Wheel material = polyurethane. Material of rim = cast aluminium. Max. load at 4 km/h = 230 kg. Type of mounting = with top plate. Wheel width = 40 mm. Overall height = 140 mm. Wheel bearing = ball bearing. Thick sheet steel, electrolytically zinc plated, blue passivated, Cr6 free. Temperature resistance: -20 C to +70 C, reduced max. load above +35 C. Double ball bearing in the ring bearing. Ring bearing seal. Minimum ring bearing play, smooth run, long service life due to dynamic Blickle riveting. Steel stop foot with rubber lining. Height adjustment by means of operating lever. Tread: high quality Blickle Softhane polyurethane elastomer, non-marking. Wheel body: die cast aluminium, silver grey. High chemical resistance to many aggressive media.