PWU平面包络蜗杆减速机是以一个平面为母面，通过相圆周运动，包络出环面蜗杆的齿面，再以蜗杆的齿面为母面，通过相对运动包络出蜗轮的齿面。平面二次包络环面蜗杆与普通圆柱蜗杆及直廓环面蜗杆相比较，具有以下特点：（a）蜗杆为环面蜗杆，与蜗轮同时啮合的齿数增多；（b）蜗杆的齿面的经过硬化处理后***磨削而成，齿面硬度，表面表糙度等级提高，可以达到很高的齿型精度。（c）齿面接触面积大，并且有瞬时双线接触，接触线总长度加长。（d）齿面润滑角大，啮合中容易形成动压油。PWU80、PWU100、PWU125、PWU140、PWU160、PWU180、PWU200、PWU225、PWU250、PWU280、PWU315、PWU355、PWU400、PWU450、PWU500、PWU560、PWU630、PWU710减速机PWU80-PWU355、型平面二次包络环面蜗杆减速器主要尺寸aH1BB1CC1DHLL1L2L3L4L5d­1b­1t1l1d2b2t2l2h801002501901128014315160160125180100902582842451448.58230100112300236130100163552002001602121251183210355855165982351251253552801601251845023623619025015014038104158651869105381401404003151801402050026526521228016016042124582702074.51054016016045035520016021560300300236315190180481451.5828022851304218018050040022518022630335335265355212200561660829025951304520020056045025020024710355355300400236224601864105100281061655022522563050028022526800400400315450265250651869105110281161655325025067053030025028850450450355500280280702074.5105125321321655628028080060035528030950475475400560315315852290130140361482006031531590067037531532106056056045063035535590259513015036158200673553551000750425355351250670670500710400400100281061651704017924075aH1BB1CC1DHLL1L2L3L4d­1b­1t1l1d2b2t2l2h4003559008004003553512506006004506303751102811616518045190240554504001000900450400391400670670500710425125321321652004521028060500450112010005004504216007507505608004751303213720022050231280655605001250112056050045180085085063090053015036158200250562623307263056014001250630560482000950950710100060017040179240280632923808071063016001400710630522240106010608001250670190452002803207033438088)