回(hui)轉(zhuan)(zhuan)式減(jian)速(su)器，是一(yi)種集成了驅(qu)(qu)動(dong)(dong)(dong)(dong)動(dong)(dong)(dong)(dong)力源(yuan)的全(quan)周回(hui)轉(zhuan)(zhuan)減(jian)速(su)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)機構(gou)，它以回(hui)轉(zhuan)(zhuan)支承作(zuo)(zuo)為傳(chuan)(chuan)動(dong)(dong)(dong)(dong)從動(dong)(dong)(dong)(dong)件(jian)(jian)和(he)機構(gou)附著件(jian)(jian)，通過在回(hui)轉(zhuan)(zhuan)支承內(nei)外圈中的一(yi)個圈上(shang)附著主動(dong)(dong)(dong)(dong)件(jian)(jian)、驅(qu)(qu)動(dong)(dong)(dong)(dong)源(yuan)和(he)罩(zhao)殼，而把(ba)另一(yi)個圈既當作(zuo)(zuo)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)從動(dong)(dong)(dong)(dong)件(jian)(jian)，又作(zuo)(zuo)為被(bei)驅(qu)(qu)動(dong)(dong)(dong)(dong)工作(zuo)(zuo)部件(jian)(jian)的連接基座，這樣利用(yong)回(hui)轉(zhuan)(zhuan)支承本身就是全(quan)周回(hui)轉(zhuan)(zhuan)連接件(jian)(jian)的特(te)點，高效配置驅(qu)(qu)動(dong)(dong)(dong)(dong)動(dong)(dong)(dong)(dong)力源(yuan)和(he)主傳(chuan)(chuan)動(dong)(dong)(dong)(dong)零件(jian)(jian)，使(shi)之成為一(yi)種集回(hui)轉(zhuan)(zhuan)、減(jian)速(su)和(he)驅(qu)(qu)動(dong)(dong)(dong)(dong)功能(neng)于(yu)一(yi)體而同時又結構(gou)簡單，制造和(he)維(wei)護(hu)方便的通用(yong)型減(jian)速(su)傳(chuan)(chuan)動(dong)(dong)(dong)(dong)機構(gou)。