For heavy-duty carriages, choose this high-performance trolley wheel from RS PRO. It can support loads weighing up to 600 kg, so your cart will be able to carry extremely heavy loads.
The wheel is made from solid cast iron with a gold passivated zinc finish. This construction makes it a sturdy, long-lasting item that's resistant to corrosive agents and harsh weather. Its 90° V-groove makes it a good choice for inverted angle-iron tracks.
For added safety in the event of a fire, the wheel is non-combustible and won't spread or transfer flames. You'll commonly find this product used to transport heavy goods in mines and railway lines.