腳輪是一種無(wú)驅(qū)動(dòng)的，采用單個(gè)的輪子，或雙輪，或更多的輪子組合在一起的，用于安裝在一個(gè)較大的對(duì)象下面（這個(gè)對(duì)象，我們通常定義為“車”），以便使該對(duì)象能方便的移動(dòng)。對(duì)于腳輪的輪子，常常采用橡膠輪，鑄鐵輪，聚氨酯輪，尼龍塑料輪，不銹鋼輪，酚醛樹(shù)脂輪等材質(zhì)（關(guān)于腳輪的輪子材質(zhì)，我們?nèi)f達(dá)輪業(yè)將在以后的腳輪講座中詳細(xì)描述）。腳輪的應(yīng)用廣泛，包括倉(cāng)儲(chǔ)物流，超市購(gòu)物車，家具家私等設(shè)備，同時(shí)重型腳輪也被應(yīng)用于平臺(tái)車，手推車，集裝箱等設(shè)備（關(guān)于腳輪的應(yīng)用，我們?nèi)f達(dá)輪業(yè)也會(huì)在以后的腳輪講座與大家一起探討）。一般而言，腳輪對(duì)于工作的輪面環(huán)境要求較為平坦，以便能靈活運(yùn)轉(zhuǎn)。當(dāng)然，隨著社會(huì)的發(fā)展，對(duì)工作設(shè)備的更高要求，腳輪的設(shè)計(jì)也有了更為特殊的方案，例如減震腳輪，V型腳輪等（關(guān)于這些特殊設(shè)備腳輪，也會(huì)在以后的腳輪講座中展開(kāi)更為廣泛的討論）。

百科全書對(duì)腳輪的解釋

　A caster (or castor) is an undriven, single, double, or compound wheel that is designed to be mounted to the bottom of a larger object (the "vehicle") so as to enable that object to be easily moved. They are available in various sizes, and are commonly made of rubber, plastic, nylon, aluminum, or stainless steel. Casters are found in numerous applications, including shopping carts, office chairs, and material handling equipment. High capacity, heavy duty casters are used in many industrial applications, such as platform trucks, carts, assemblies, and tow lines in plants. Generally, casters operate well on smooth and flat surfaces。