The worm gears created by EP are square and so are considerably versatile for installation. The machining of the parts, completed using numeric control devices, guarantees maximum precision for the restricted tolerances, creating a product that may remain reliable as time passes. The groupings are constructed of aluminium casings from sizes 025 to 090, as the sizes 110, 130 and 150 are produced from cast iron. All the bodies are painted with RAL 9022 aluminium color to protect the parts from aging and also to give better protection against microblowholes that may be within the aluminium. The gears are supplied with at least one filling connect that is also used during assessment to check for feasible leaks. A CHM – WORM GEARED MOTORS AND WORM GEAR UNITS connection flange enables two gears to become combined in order to obtain high equipment ratios. Four sizes of CHPC pre-stage gears can be found to pair with the gears; they 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 input bearing. Motors given by Chiaravalli Group S.p.A. guarantee that this requirement is fulfilled. For ease of consultation, the correspondence of how big is the B5 and B14 motor with the sizes of the shaft and the engine 
connection flange are demonstrated in the following table. Understand that, as the electric motor connection flanges are individual from the body additionally it is possible to get a shaft / flange mixture that will not match the table, e.g. 19/140, therefore offering adaptability for additional non-unified models like the brushless or immediate current types.
CHM – WORM GEARED MOTORS AND WORM GEAR UNITS
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