... 2.Load capacity:500~600kg 3.Mold on rubber caster,plain bearing 4.Good quality. Reasonable price ... 3.Caster material: Plain bearing mold on rubber wheel and hollow stem heavy duty fork 4.Chrome, zinc ... Our wheel diameter is from 15mm to 300mm, materials include rubber, TPR, PU, plastic, nylon, cast iron, pneumatic, ... .Similar Product4.Factory 52 Mold on rubber hollow stem scaffold casters with brake