回(hui)(hui)轉(zhuan)(zhuan)(zhuan)式(shi)減(jian)速(su)器，是一種集(ji)成了驅動(dong)(dong)(dong)動(dong)(dong)(dong)力(li)源的(de)(de)全周(zhou)回(hui)(hui)轉(zhuan)(zhuan)(zhuan)減(jian)速(su)傳動(dong)(dong)(dong)機(ji)構(gou)，它(ta)以回(hui)(hui)轉(zhuan)(zhuan)(zhuan)支承(cheng)作(zuo)(zuo)(zuo)為傳動(dong)(dong)(dong)從動(dong)(dong)(dong)件(jian)和機(ji)構(gou)附著件(jian)，通過(guo)在回(hui)(hui)轉(zhuan)(zhuan)(zhuan)支承(cheng)內外圈(quan)(quan)中(zhong)的(de)(de)一個圈(quan)(quan)上附著主(zhu)動(dong)(dong)(dong)件(jian)、驅動(dong)(dong)(dong)源和罩(zhao)殼，而把(ba)另一個圈(quan)(quan)既當作(zuo)(zuo)(zuo)傳動(dong)(dong)(dong)從動(dong)(dong)(dong)件(jian)，又作(zuo)(zuo)(zuo)為被驅動(dong)(dong)(dong)工作(zuo)(zuo)(zuo)部件(jian)的(de)(de)連(lian)接基座，這(zhe)樣利用回(hui)(hui)轉(zhuan)(zhuan)(zhuan)支承(cheng)本身就是全周(zhou)回(hui)(hui)轉(zhuan)(zhuan)(zhuan)連(lian)接件(jian)的(de)(de)特點，高效配置(zhi)驅動(dong)(dong)(dong)動(dong)(dong)(dong)力(li)源和主(zhu)傳動(dong)(dong)(dong)零件(jian)，使之成為一種集(ji)回(hui)(hui)轉(zhuan)(zhuan)(zhuan)、減(jian)速(su)和驅動(dong)(dong)(dong)功能于一體而同時又結(jie)構(gou)簡單，制(zhi)造和維護方便的(de)(de)通用型減(jian)速(su)傳動(dong)(dong)(dong)機(ji)構(gou)。