減速機常用的有X系列B系列擺線針輪減速機，ZQ系列ZQA系列軟齒面減速機，ZDY，ZLY，ZSY系列硬齒面減速機，NGW系列行星齒輪減速機，WXJ，WSJ，WD，WS，WP，WH系列蝸輪蝸桿減速機。

減(jian)速(su)(su)(su)機(ji)(ji)在原動機(ji)(ji)和(he)工作(zuo)機(ji)(ji)或執行(xing)機(ji)(ji)構之間(jian)起匹配(pei)轉速(su)(su)(su)和(he)傳遞轉矩的作(zuo)用(yong)，是(shi)(shi)一(yi)種(zhong)(zhong)相對精密的機(ji)(ji)械。使用(yong)它的目的是(shi)(shi)降低(di)轉速(su)(su)(su)，增加轉矩。它的種(zhong)(zhong)類繁(fan)多，型號各(ge)異，不同種(zhong)(zhong)類有不同的用(yong)途(tu)。減(jian)速(su)(su)(su)器(qi)(qi)的種(zhong)(zhong)類繁(fan)多，按(an)照(zhao)傳動類型可分(fen)為齒(chi)輪減(jian)速(su)(su)(su)器(qi)(qi)、蝸桿減(jian)速(su)(su)(su)器(qi)(qi)和(he)行(xing)星齒(chi)輪減(jian)速(su)(su)(su)器(qi)(qi)。

按照(zhao)傳(chuan)動級(ji)(ji)數不(bu)同可分(fen)(fen)為(wei)單級(ji)(ji)和多級(ji)(ji)減(jian)(jian)(jian)速(su)器(qi)(qi)；按照(zhao)齒(chi)(chi)輪(lun)形狀(zhuang)可分(fen)(fen)為(wei)圓柱齒(chi)(chi)輪(lun)減(jian)(jian)(jian)速(su)器(qi)(qi)、圓錐齒(chi)(chi)輪(lun)減(jian)(jian)(jian)速(su)器(qi)(qi)和圓錐－圓柱齒(chi)(chi)輪(lun)減(jian)(jian)(jian)速(su)器(qi)(qi)；按照(zhao)傳(chuan)動的布置形式又可分(fen)(fen)為(wei)展開式減(jian)(jian)(jian)速(su)器(qi)(qi)、分(fen)(fen)流式減(jian)(jian)(jian)速(su)器(qi)(qi)和同軸式減(jian)(jian)(jian)速(su)器(qi)(qi)。