Beginning with these considerations, we’ve a gearbox with a motor mounting flange that is separable from the casing which incorporate the oil seal; in this manner we avoid any threat of damaging the oil seal in the event of substitute of the input flange and the O-Ring could be eliminated.
All the aside covers, swinging and with feet, have O-Rings instead of traditional flat gaskets.
The sizes 03-04-05 permit the rotation of the feet without disassembling them; furthermore the variations with swinging apart covers allow the lateral flanges to be installed on both sides with simple fixing screws.
The worm screw has a ZI involute profile: with this worm-wheel coupling we shall get a much better performance with a temperature reduction.
The gearboxes and motors are painted with RAL 9022 aluminium worm gear unit colour epoxy powder to safeguard 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, obtaining a gear ratio up to 1 1:300. For bigger reductions is possible to have two gears collectively using an appropriate kit