回(hui)(hui)轉(zhuan)式減(jian)速器，是一(yi)(yi)種集成了驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)動(dong)(dong)(dong)(dong)力(li)源的(de)全周(zhou)回(hui)(hui)轉(zhuan)減(jian)速傳(chuan)(chuan)動(dong)(dong)(dong)(dong)機構，它以回(hui)(hui)轉(zhuan)支(zhi)承(cheng)作為(wei)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)從動(dong)(dong)(dong)(dong)件(jian)(jian)和(he)機構附著件(jian)(jian)，通(tong)過在回(hui)(hui)轉(zhuan)支(zhi)承(cheng)內(nei)外圈(quan)(quan)中的(de)一(yi)(yi)個(ge)圈(quan)(quan)上附著主(zhu)動(dong)(dong)(dong)(dong)件(jian)(jian)、驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)源和(he)罩殼(ke)，而(er)把另一(yi)(yi)個(ge)圈(quan)(quan)既(ji)當作傳(chuan)(chuan)動(dong)(dong)(dong)(dong)從動(dong)(dong)(dong)(dong)件(jian)(jian)，又作為(wei)被驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)工作部件(jian)(jian)的(de)連接(jie)基(ji)座，這樣利用(yong)回(hui)(hui)轉(zhuan)支(zhi)承(cheng)本(ben)身就是全周(zhou)回(hui)(hui)轉(zhuan)連接(jie)件(jian)(jian)的(de)特點，高(gao)效配置驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)動(dong)(dong)(dong)(dong)力(li)源和(he)主(zhu)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)零件(jian)(jian)，使之成為(wei)一(yi)(yi)種集回(hui)(hui)轉(zhuan)、減(jian)速和(he)驅(qu)(qu)(qu)動(dong)(dong)(dong)(dong)功能于(yu)一(yi)(yi)體而(er)同時又結(jie)構簡單，制造和(he)維護方(fang)便(bian)的(de)通(tong)用(yong)型減(jian)速傳(chuan)(chuan)動(dong)(dong)(dong)(dong)機構。