CHM – WORM GEARED MOTORS AND WORM GEAR UNITS

The worm gears made by EP are square and are considerably versatile for mounting. The machining of the components, carried out using numeric control machines, guarantees maximum precision for the limited tolerances, generating a product which will remain reliable over time. The groupings are constructed with aluminium casings from sizes 025 to 090, as the sizes 110, 130 and 150 are manufactured from cast iron. All of the bodies are painted with RAL 9022 aluminium colour to protect the parts from aging and also to give better security against microblowholes that may be present in the aluminium. The gears are supplied with at least one filling connect that’s also used during examining to check for possible leaks. A connection flange allows two gears to be combined in order to obtain high equipment ratios. Four sizes of CHPC pre-stage gears can be found to set with the gears; these are also constructed in aluminium and are painted like the worm gears
Gears that are supplied with mounting flanges should be assembled with motors whose shaft and flange tolerances match a “normal class” of quality in order to avoid vibration and forcing of the insight bearing. Motors given by Chiaravalli Group S.p.A. CHM – WORM GEARED MOTORS AND WORM GEAR UNITS guarantee that this requirement is fulfilled. For ease of consultation, the correspondence of how big is the B5 and B14 engine with the sizes of the shaft and the electric motor connection flange are demonstrated in the next table. Remember that, as the electric motor connection flanges are separate from the body it is also possible to have a shaft / flange combination that does not correspond to the table, e.g. 19/140, therefore offering adaptability for various other non-unified models such as the brushless or immediate current types.