... bearing,PU hardness:-5+/-3 Shore AWe builds and manufactures scaffold casters and wheels, keeping your scaffolding units mobile. ... all sizes and requirements for filling your scaffold wheel and caster needs.Scaffold Caster OptionsWheels for scaffolding are available in ... rubber on cast iron, polyurethane on polyolefin, and phenolic.Scaffold wheel foot operated brakes, engaging both swivel and wheel ...