If you look closely at the shopping cart caster, you can find that the axle and the body of the swivel caster are not fixed, but can rotate freely around the vertical axis. Because if the axle is fixed with the car body, the casters can only go straight forward, and the car cannot turn.
In addition, it can be found that when you push the cart forward, the wheels of the casters always follow the rear of the rotating shaft. If you change from forward to backward, the wheel of the caster will suddenly turn 180° around the vertical axis, or the wheel will follow the rotation axis. Under normal circumstances, the rolling direction of the casters must be consistent with the forward direction to make the shopping cart move smoothly. Once the rolling direction of the casters is inconsistent with the forward direction of the vehicle body, the frictional force on the ground will generate a moment on the vertical rotation axis in front, pushing the casters to a position consistent with the walking direction.
Product Description
From Light duty to Heavy duty Casters And Wheels, our casters reply to every application including Logistics Equipment, Medical Equipment, Supermarket Trolley, Cleaning Equipment, Furniture and etc.
Kaiping City Sunnywah Electronic CO.,LTD, has a full set of advanced digital manufacturing and inspection device, outstanding managerial and technical staff and perfect Management. We are familiar with the standard from different country, for America, Europe, Korea, Japan and so on. The leading product including: toolbox, Heavy Duty Castors with welding steel housing, industrial caster, military caster, Medical Caster, shopping Trolley Casters, scaffolding caster, Trolley casters, light-duty caster etc... Products are mainly exported to Europe, US, Japan, Korea, and Southeast Asia by the OEM basis.
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