we have a gearbox with a motor mounting flange that is separable from the housing which incorporate the essential oil seal; in this manner we avoid any threat of damaging the essential oil seal in case of alternative of the insight flange and the O-Ring can 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 feet without disassembling them; furthermore the variations with swinging apart CH WORM GEARED MOTORS AND WORM GEAR UNITS covers allow the lateral flanges to be installed on both sides with simple fixing screws. The worm screw includes a ZI involute profile: with this worm-wheel coupling we shall get a better efficiency with a temperature reduction. 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 present in the catalogue of CHM) may also be mounted with this range, finding a gear ratio up to 1 1:300. For larger reductions can be done to possess two gears with each other using an appropriate kit