... , Institutional Carts, Hand carts, Trolleys, Apparatus, Furniture. 5" Grip Ring Stem Caster, Medium Duty Caster, Shopping cart caster, Institutional Cart caster ... / PU with Iron core- Bearing: Ball Bearing- Brake: Yes- Threaded stem: M8x30mm- Load capacity: 40-60KGS 5" Grip Ring ...