worm gear unit

Beginning with these considerations, we have a gearbox with a motor mounting flange that’s separable from the casing which incorporate the essential oil seal; in this way we avoid any risk of damaging the oil seal in case of replacement of the insight flange and the O-Ring could be eliminated.
All the apart covers, swinging and with ft, have O-Rings instead of traditional flat gaskets.
The sizes 03-04-05 permit the rotation of the feet without disassembling them; furthermore the versions with swinging aside covers allow the lateral flanges to become fitted on both sides with basic fixing screws.
The worm screw has 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 worm gear unit micro-blowholes that can come during 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 larger reductions can be done to have two gears collectively using a proper kit


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