we have a gearbox with a motor mounting flange that is separable from the housing which incorporate the oil seal; in this manner we avoid any risk of damaging the essential oil seal in the event of alternative of the input flange and the O-Ring could be eliminated. All the apart covers, swinging and with feet, have O-Rings rather than traditional toned gaskets. The sizes 03-04-05 allow the rotation of your toes without disassembling them; CH WORM GEARED MOTORS AND WORM GEAR UNITS furthermore the versions with swinging apart covers allow the lateral flanges to end up being fitted on both sides with simple fixing screws. The worm screw has a ZI involute profile: with this worm-wheel coupling we shall get a better performance with a temperature decrease. The gearboxes and motors are painted with RAL 9022 aluminium colour epoxy powder to protect the parts from oxidation and against micro-blowholes that can come through the pressure of die-castings. The CHPC pre-stage gears (already within the catalogue of CHM) can also be mounted with this range, finding a gear ratio up to at least one 1:300. For bigger reductions is possible to possess two gears jointly using a proper kit