75mm Polyurethane (Premium Grade REVVOTHANE) Tyred / Cast Iron Centre Wheel with 20mm Ball Bearing. This is a high performance polyurethane tyred wheel with a load capacity of 300kg at 4km/h.
As a high performance wheel it is often used in much more demanding applications than a standard polyurethane tyre castor wheel. As with all polyurethane tyred wheels, demanding applications involving extended periods of use or speeds greater 4 km/h the friction will generate heat build up in the polyurethane. REVVOTHANE is a high quality polyurethane that offers minimal heat build up and performs exceptionally well within the following guidelines:
- If the wheel be in continual use for more than 45 minutes, this reduces the load capacity by 25%.
- The load capacity is reduced by a further 30% if used as Drive Wheel
- Reduce load by further 20% if the running speed is between 6 km/h and 10 km/h
- Reduce the load by a further 30% if the running speed is between 10 km/h and 16 km/h