Our MQ series of worm-gear variable speed electric motors is produced using nodular cast iron G-25. The square-shaped housing is designed to accommodate adjustments from any of its three machined sides.
The robustness of this design is derived from the block, which bears the load created by the interaction between the worm gear and the wheel. Consequently, this variable speed electric motor exhibits a longer operational lifespan compared to the MF series.
Should it be necessary, we can supply this type of variable speed electric motor made from GGG-40 nodular cast iron, providing enhanced support for the machinery.
Structural Features
The variable speed electric motor with a worm gear design consists of three primary components: the housing, worm gear, and wheel.
The casings are manufactured from nodular cast iron GG-25 for all sizes of this model, which provides exceptional durability against fatigue, vibrations, and other unforeseen challenges that may arise during assembly.
Constructed from cement steel, the worm gear features rectified tooth flanks, while the crown is made from DIN bronze (GZ-CuSn 12 Ni2) fused to steel. The superior mechanical quality of these components results in impressive performance and minimal noise generation.
The output shaft is designed as hollow, but a solid shaft can be installed if required.
Featuring an oil seal made from NITRILE BUTADIENE in compliance with DIN 3760, high-quality bearings, a two-component EPOXI-impregnated finish, and a single-layer enamel coating in grey (RAL 7672), this product stands out as a leading choice among ear reducers on the market.
Assembly Position
To ensure the effective installation and operation of a gear reducer, the following considerations should be followed:
Backdriving
When considering the operation of the gear reducer output shaft, it is important to recognize that it may be driven rather than act as the driver. One notable characteristic of this worm-gear variable speed electric motor is its inability to be axle-driven from the output shaft (irreversibility). Achieving complete irreversibility is nearly impossible due to external influences such as vibrations and other factors. Therefore, in applications that necessitate absolute irreversibility, utilizing external brakes with sufficient force to prevent slipping is recommended. The conditions that can lead to irreversibility are as follows: • Output < 0.55 (refer to the technical features table).
It could be said that the conditions under which irreversibility can happen are as follows:
• output < 0,55 (see table of technical features).
Maintenance
This type of gear reducer is equipped with a permanent lubrication system, eliminating the need for any maintenance.
Lubrication
The lubrication for this type of variable speed electric motor gear reducer is designed to be constant and is supplied as standard. It features high-quality refined oil infused with anti-rust and anti-wear additives, including Fe, Cu, and alloy protectors, compliant with CLP DIN 51517-3, FGZ level 12, AP GL-4, US 224, and AGMA 250-04 standards. Consequently, no maintenance is required.
