wheel center: sheet steel galv. blue passivated
bearing: roller bearing
galvanized sheet steel housing, pivot bearing with a double ball race, bolt hole fitting by bolt hole Ø 13 mm, housing with material strength 3.5 mm (fitting) and 3.0 mm (fork), clearance between the fork 60 mm, wheel rim made of galvanized and riveted sheet steel caps with a tread made of solid rubber (PAH Cat.3) grey colored, hub width 59 mm, roller bearing, screwed wheel axle (incl. all axle material).