2. Moderate worm gear not WJ series because there aren't device , can consult when being choose by" install by orientation diagram".

3.Moderate there aren't device , If user demand mix electrical machinery explain at the time of ordering . So long as user get form ready 12 fixed electrical machinery, produce electrical machinery axle insert pole in in the hole when installing, Then worm gear hookup flange and flange regular to can use while being kind electrical machinery that case mix.