The worm gears created by EP are square and are considerably versatile for installation. The machining of the components, carried out using numeric control machines, guarantees maximum precision for the limited tolerances, producing a product that will remain reliable over time. The organizations are constructed of aluminium casings from sizes 025 to 090, as the sizes 110, 130 and 150 are made from cast iron. All of the bodies are painted with RAL 9022 aluminium color to protect the parts from aging and also to give better safety against microblowholes which may be within the aluminium. The gears are given at least one filling connect that's also used during assessment to check for CHM - WORM GEARED MOTORS AND WORM GEAR UNITS feasible leaks. A connection flange enables two gears to be combined to be able to obtain high equipment ratios. Four sizes of CHPC pre-stage gears are available to set with the gears; they are also built in aluminium and are painted just like the worm gears
Gears that are supplied with mounting flanges must be assembled with motors whose shaft and flange tolerances correspond to a “normal course” of quality in 
order to avoid vibration and forcing of the input bearing. Motors given by Chiaravalli Group S.p.A. guarantee that this requirement is fulfilled. For simple consultation, the correspondence of how big is the B5 and B14 electric motor with the sizes of the shaft and the electric motor connection flange are shown in the following table. Understand that, as the motor connection flanges are individual from the body it is also possible to possess a shaft / flange mixture that does not match the table, electronic.g. 19/140, therefore offering adaptability for other non-unified models such as the brushless or immediate current types.
