回(hui)(hui)轉(zhuan)式減(jian)速(su)(su)器，是(shi)一(yi)種集(ji)成(cheng)了(le)驅(qu)動(dong)(dong)(dong)(dong)(dong)動(dong)(dong)(dong)(dong)(dong)力源的(de)全周(zhou)回(hui)(hui)轉(zhuan)減(jian)速(su)(su)傳動(dong)(dong)(dong)(dong)(dong)機構，它以回(hui)(hui)轉(zhuan)支承作(zuo)為傳動(dong)(dong)(dong)(dong)(dong)從動(dong)(dong)(dong)(dong)(dong)件和(he)(he)機構附著件，通(tong)過在回(hui)(hui)轉(zhuan)支承內(nei)外(wai)圈(quan)中的(de)一(yi)個圈(quan)上附著主動(dong)(dong)(dong)(dong)(dong)件、驅(qu)動(dong)(dong)(dong)(dong)(dong)源和(he)(he)罩殼(ke)，而把另一(yi)個圈(quan)既當作(zuo)傳動(dong)(dong)(dong)(dong)(dong)從動(dong)(dong)(dong)(dong)(dong)件，又(you)作(zuo)為被(bei)驅(qu)動(dong)(dong)(dong)(dong)(dong)工作(zuo)部件的(de)連接(jie)基座(zuo)，這樣利(li)用回(hui)(hui)轉(zhuan)支承本身(shen)就(jiu)是(shi)全周(zhou)回(hui)(hui)轉(zhuan)連接(jie)件的(de)特(te)點，高效配置(zhi)驅(qu)動(dong)(dong)(dong)(dong)(dong)動(dong)(dong)(dong)(dong)(dong)力源和(he)(he)主傳動(dong)(dong)(dong)(dong)(dong)零件，使之成(cheng)為一(yi)種集(ji)回(hui)(hui)轉(zhuan)、減(jian)速(su)(su)和(he)(he)驅(qu)動(dong)(dong)(dong)(dong)(dong)功能于一(yi)體(ti)而同時(shi)又(you)結構簡單，制造和(he)(he)維護方(fang)便的(de)通(tong)用型減(jian)速(su)(su)傳動(dong)(dong)(dong)(dong)(dong)機構。