Starting from these considerations, we have a gearbox with a motor mounting flange that is separable from the 
housing which incorporate the essential oil seal; in this way we avoid any threat of damaging the essential oil seal in the event of replacement of the input flange and the O-Ring can be eliminated.
All the aside covers, swinging and with ft, have O-Rings rather than traditional flat gaskets.
The sizes 03-04-05 permit the rotation of your toes without disassembling them; furthermore the versions with swinging aside covers permit the lateral flanges to be fitted on both sides with simple fixing screws.
The worm screw worm gear unit includes a ZI involute profile: with this worm-wheel coupling we shall get a better performance 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 may come during the pressure of die-castings.
The CHPC pre-stage gears (already within the catalogue of CHM) may also be mounted with this range, obtaining a gear ratio up to at least one 1:300. For bigger reductions can be done to have two gears collectively using an appropriate kit
worm gear unit
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