Four swivel casters, two steering wheels, and equal installation heights are a high-cost wheel arrangement. It is recommended to enable the vehicle to rotate smoothly under the action of heavy-duty and long-instrument vehicles. An alternative is to use a wheelset instead of a steering wheel and two single wheels on a single axle. Suitable for light loads, the instrument truck can travel in all directions. Instrument cars are difficult to control when driving in a straight line. In this arrangement, the instrument has a tendency to flip over. Two swivel casters and directional casters of the same height are common configurations of swivel casters. Linear motion in this arrangement is comparable to curved motion.
However, movement flexibility is poor on narrow passages. An alternative is to use a wheelset instead of a steering wheel and two single wheels on the same axis. The wheel mounting height between them is a bit high. This is a cheap and inexpensive way to line up casters, and it's easy to turn in a straight line. With this arrangement, the vehicle is prone to tipping over. An alternative could be a single steering wheel in place of a wheel pair and two coaxial lines.
Two swivel casters allow for flexible turning. This structure is used on flat ground where the vehicle would otherwise be prone to overturning. The alternative is to change the directional wheel to a wheel pair and two single wheels on the same axis. Four swivel wheels of the same height are suitable for narrow passages as the vehicle can move well in all directions. But it is not easy to control the straight direction of the vehicle. Improve this situation by installing at least one locking direction device on the caster wheel.
Four universal wheels, two steering wheels, and equal installation heights are a high-cost wheel arrangement. Shangxin universal wheels manufacturer recommends that the vehicle can rotate smoothly under the influence of heavy load and long instrument vehicle. An alternative is to use a wheelset instead of a steering wheel and two single wheels on a single axle.
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