ALUMINIUM CORE - CAST POLYURETHANE COATING.
Cast polyurethane coating, hardness 95±3 Shore A.
Core in die-cast aluminium alloy.
High load capacity; excellent smooth and noiseless running; high resistance to wear and tear, oils and greases.
Temperature range: -30°C / +80°C (-22°F / +176°F).
Hub with: shielded precision ball bearings; standard roller bearing.