» Highload wheels
The highload wheels are economic and very efficient when a high load capacity but small size in necessary.
They are particularly suitable for trailers and flatcars used for good and container movement in ports, airports, steel plants and heavy industries in general.
Working temperatures can be from -20°C to +50°C, and even up to +80°C with reduced loads and for short periods.
The highload wheels can be used both as driving wheels and as freewheels.
The driving wheels have a lawer load capacity than the freewheels and depending on the torque transmitted, the load capacity, is should also be considered that in the case of vehicles without suspension or nonarticulated vehicles, the load is normally supported at only three points.
In calculating the flow rate is good to bear in mind also that, in vehicles devoid of suspensions or joints, the load is normally distributed only on just three supports.
The normal type highload wheels are constructed with a hub composed of a mechanical tube, two moduled sheet metal flanges and an external ring in either calendered metal or tubing; assembly is by MIG ( metal inert-gas ) electro-welding.
The hub is normally made with bearing seats positioned inside.
Externally the rubber is vulcanised.