Swivel Castors allow frequent changes of direction. A vehicle fitted only with Swivel castors makes it easy to turn in all directions even on the spot and would therefore not be suitable for applications which are required to only move forwards or backwards in one direction.
For applications requiring good straight travel and manoeuvrability, it is therefore common to combine Swivel Castors with Fixed Castors. The most common arrangement is to mount two Swivel Castors on the side where the equipment will be pulled or pushed and two Fixed Castors on the other. The advantage: This makes the vehicle ideal for moving straight ahead and around bends.
The centre point of the Swivel Castor is placed with an offset to the rotational axis. Therefore the wheel will follow the direction the trolley travels in.
Generally speaking, Swivel Castors with a large offset have a lower load-bearing capacity and more wear on the back bearing, but ensure smooth running characteristics. With a smaller offset, however, the load-bearing capacity is higher and there is less wear on the back bearing although the running performance is not as smooth. For the respective requirements, the optimum projection of the castor housing must therefore be selected.
See our full range of Swivel Castors here