POLYAMIDE 6 CORE - INJECTED POLYURETHANE COATING.
Injected polyurethane coating, hardness 58±3 Shore D.
Core in high quality polyamide 6.
Noiseless running; high resistance to shocks, abrasion and corrosion; easy to clean.
Temperature range: -30°C / +80°C (-22°F / +176°F).
Hub with or without shielded precision ball bearings.