回(hui)(hui)(hui)(hui)轉(zhuan)(zhuan)式減(jian)(jian)速(su)器，是(shi)一(yi)種(zhong)集(ji)成了(le)驅(qu)(qu)(qu)動(dong)(dong)動(dong)(dong)力(li)(li)源(yuan)的(de)(de)全周回(hui)(hui)(hui)(hui)轉(zhuan)(zhuan)減(jian)(jian)速(su)傳動(dong)(dong)機構，它以回(hui)(hui)(hui)(hui)轉(zhuan)(zhuan)支(zhi)承作(zuo)為(wei)傳動(dong)(dong)從(cong)(cong)動(dong)(dong)件(jian)(jian)和機構附(fu)著件(jian)(jian)，通過在回(hui)(hui)(hui)(hui)轉(zhuan)(zhuan)支(zhi)承內外圈(quan)中的(de)(de)一(yi)個(ge)圈(quan)上附(fu)著主動(dong)(dong)件(jian)(jian)、驅(qu)(qu)(qu)動(dong)(dong)源(yuan)和罩殼，而把(ba)另一(yi)個(ge)圈(quan)既當作(zuo)傳動(dong)(dong)從(cong)(cong)動(dong)(dong)件(jian)(jian)，又(you)作(zuo)為(wei)被(bei)驅(qu)(qu)(qu)動(dong)(dong)工作(zuo)部件(jian)(jian)的(de)(de)連(lian)接基座，這樣(yang)利(li)用回(hui)(hui)(hui)(hui)轉(zhuan)(zhuan)支(zhi)承本身(shen)就是(shi)全周回(hui)(hui)(hui)(hui)轉(zhuan)(zhuan)連(lian)接件(jian)(jian)的(de)(de)特點，高效配置驅(qu)(qu)(qu)動(dong)(dong)動(dong)(dong)力(li)(li)源(yuan)和主傳動(dong)(dong)零件(jian)(jian)，使之成為(wei)一(yi)種(zhong)集(ji)回(hui)(hui)(hui)(hui)轉(zhuan)(zhuan)、減(jian)(jian)速(su)和驅(qu)(qu)(qu)動(dong)(dong)功能于一(yi)體(ti)而同時又(you)結構簡單，制(zhi)造和維護(hu)方(fang)便的(de)(de)通用型減(jian)(jian)速(su)傳動(dong)(dong)機構。