Heavy-Duty PP Swivel Trolley Caster Wheels – Sizes 4″/5″/6″/8″, Capacity 260-460 kg Key Features Robust PP wheel tread provides excellent wear resistance and cost-effectiveness for heavy-duty usage. Double ball bearing design ensures smooth rotation and efficient movement for large loads. Large load capacity options (up to 460 kg) meet heavy material handling applications. Versatile mounting and brake configurations allow adaptation to various trolley, cart and platform