Nylon Polyamide Wheel, Stainless Steel Fork, Heavy Duty, Series INOX 40. A range of high quality polyamide castors with minimal rolling resistance. Easy to keep clean and resistant to corrosion, shocks and abrasion. Double ball race Corrosion, abrasion and shock resistant -30°C to +80°C operation Smooth running under heavy loads Roller bearing Wheel series P Stainless steel fork material