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Distributor / authorized representative that deals with supply & delivery of gearmotors to industrial enterprises of Russia

Engineering company ‘Intech GmbH’ LLC (ООО «Интех ГмбХ»), Russia, has been successfully working with a number of Russian industrial enterprises at the local market for more than 20 years. Since the company’s founding, it has acquired immense engineering experience, market reputation, and has realized more than a hundred large-scale projects at the industrial plants in Russia. Our company is continuously in search of new business partners, who consider Russian market investment-attractive and want to boost their sales in the region, as well as expand their field of activities and enter a new international level.

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We are interested in cooperation with the manufacturers of gearmotors (also referred to as gear drives or geared motors), who are looking for an official and reliable distributor to deal with supply & delivery of their equipment to the industrial plants in Russia.

The company’s top management and sales team are well acquainted with the Russian market, its mentality and laws; they also understand industrial specifics of the financial and economic activities of the Russian customers. All our sales managers have a large customer database, extensive experience of successful sales and well-established connections with the potential buyers of your gearmotors. This allows our managers to promptly set out the most promising directions for promotion and to ensure a rapid entry of the products into the promising Russian market. Our employees, who are fluent in English and German, are focused on working at the international market with the supplies of foreign equipment.

Our team of experienced engineers, who can handle the most serious technical problems, constantly keeps in touch with the Russian customers, holds meetings and delivers presentations regarding the latest achievements of our manufacturing partners. They point out the engineering challenges and actively communicate with all the departments at Russian plants. That is why the specifics of doing a business in the Russian Federation are well-known to us, and we also know the equipment of the local industrial plants and their up-to-date modernization needs.

Once we become your authorized representative in Russia, our marketing staff will carry out a market research in order to check the demand for gearmotors, will submit a market overview for gearmotors that you offer and evaluate the needs for this type of equipment at local plants. Our specialists will also estimate the potential and capacity of this market at local industrial plants. Our IT-team will start developing a website for your products in Russian. Our experts will assess the conformity between your gearmotors and customer needs as well as analyze the common reaction to the new goods in general. We will look into the categories of potential customers, and pick out the largest and the most promising plants.

Upon becoming your authorized agent on the territory of Russia, ‘Intech GmbH’ LLC (ООО «Интех ГмбХ»), will obtain certificates, if required, for a batch of the goods, for various types of gearmotors in compliance with Russian standards. We can also arrange the inspection in order to obtain TR TS 010 and TR TS 012 Certificates. These certificates provides permission to operate your equipment at all industrial plants of the EAEU countries (Russia, Kazakhstan, Belarus, Armenia, Kyrgyzstan), including the hazardous industrial facilities. Our company is eager to assist in issuing Technical Passports for gearmotors as per Russian and other EAEU countries’ requirements.

Our engineering company ‘Intech GmbH’ LLC (ООО «Интех ГмбХ»), collaborates with several Russian design institutes in various industrial segments, which allows us to conduct preliminary design as well as subsequent design works according to the standards, construction rules and regulations that are applicable in Russia and other CIS countries. It also enables us to include your gearmotors into the future projects.

The Company has its own logistics department that can provide packing service, handling as well as the most efficient and cost effective mode of transportation of the goods (incl. over dimensional and overweight goods). The goods can be delivered on DAP or DDP-customer’s warehouse basis in full compliance with all the relevant regulations and requirements that are applicable on the Russian market.

Our company has its own certified specialists who will carry out installation supervision and commissioning of the delivered equipment, as well as further guarantee and post-guarantee maintenance of gearmotors. They will also provide necessary training and guidance for the customer’s personnel.

Geared motors. A brief description of geared motors

A gearmotor can be considered as a combined mechanism designed as an electromechanical unit that comprises a gearboxes and an electric motor operating as a pair. These devices are widely used in many branches of industry due to their major advantages: small size, low weight, good efficiency, easy installation and maintenance. The electric motor, located in this unit, provides for conversion of the specific kind of energy into the mechanical energy, and the gearboxes transmits it to the output shaft with variation of the rotation frequency. The following types of gear motors are the most common:

  • parallel-shaft;
  • worm gear;
  • bevel gear;
  • planetary;
  • harmonic gear;
  • combined.

Obviously, the type of a gear motor depends on the type of a gearboxes used in it; the gearboxes determines the method of variation of the shaft rotation frequency and transmission of mechanical energy from the motor to the actuator. For example, the configuration of a worm gear motor must contain a worm gear, that is characterized by noiseless operation and small sizes. The corresponding gear motor will have the same advantages. Worm gear motors can be considered the second most common motor, while parallel-shaft gear trains and corresponding gear motors take the first place. This is caused by their reliability, durability and simple design that enables easier operation and maintenance.

Geared motors, gearmotors

Gear motors are used almost in every sphere due to several advantages of this type. Due to their small size and relatively small overall dimensions, gear motors can be built into the constructions of various machines and apparatus. These may be automated packing, palletizing and pallet wrapping lines, various conveyors and other medium-moving machines as well as apparatus for chemical, petrochemical, food-processing and other industries. The scope of application of gear motors covers also medical equipment, regulating systems, automated control systems, information processing and delivery systems etc. Characteristics of a gear motor’s components determines the details of its application in an industry.

Worm gear motors

Geared motors, gearmotors

The principle of operation of this type of assemblies lies in the use of a crossed-axis helical gear. The crossed-axis helical gear increases significantly the transmitted torque, while the angular speed is significantly reduced. The mechanical gear consists of two basic components: a screw and a wheel. A screw in these gears resembles a worm in appearance, that is why it is called ‘worm’. A gear wheel used in such a gear (a worm wheel) has some differences from wheels used in a gear train. The wheel teeth are usually made helical, with the special concaved shape, providing better meshing with a worm. The shape of teeth of a worm wheel can also be different: straight, bend or roller-type. In a latter case, it a roller that takes part in meshing, instead of teeth.

In a screw-worm pair, a screw is usually the driving element. A worm wheel can also be the driving element, but it is impossible in most cases because it results in gear self-locking. To reduce friction in a meshing zone, materials of a worm and a wheel are chosen in such a way that these components comprise an antifriction pair to provide minimal friction coefficient. A screw is usually made of carbon steel or alloy steel, while a wheel is usually made of antifriction materials; however, for the purposes of cost-saving, cheaper materials not providing the aforementioned properties are usually used for a wheel core.

A worm gear motor has inherited many features of worm gear gearboxess, imparting similar advantages and disadvantages to it. For example, low noise and smoothness of operation are typical for this type of gear motors; also, the effect of self-locking is intrinsic for them. Also, high gear ratio per one stage is typical for worm gear motors.

At the same time, disadvantages of a worm gear affect corresponding gear motors as well; this is demonstrated by their relatively low efficiency and reduced wear resistance, resulting in higher requirements for assembling and adjustment accuracy, and by the need in high-quality lubrication to reduce heat release caused by friction in a gear. This combination of factors limits applicability of worm gear motors predominantly by the cases when only low powers are to be transmitted.

This type of assemblies can be classified depending on various characteristics: number of screw thread run-ins, threading method (right-hand and left-hand thread), screw shape (globoid or parallel-shaft), thread profile (convolute, Archimedean or involute profile). Depending on their design configuration, worm gear motors can be single-reduction, double-reduction ones etc. Depending on relative positioning of gear elements, worm gear motors with top, bottom and side positioning of a worm relative to a wheel can be considered.

Parallel-shaft gear motors

Geared motors, gearmotors

As the name suggests, in parallel-shaft gear motors, the motion is transmitted due to the parallel-shaft gear where a pair of gear wheels are meshed. This type of assemblies is among the most common in industry, and their popularity is comparable with that of worm gear motors. Parallel-shaft gear motors are widely used in metal-cutting machine tools, mixers, grinding mechanisms, roll equipment etc.

To some extent, the parallel-shaft gear can be considered as opposite to the worm gear. For example, it has much higher efficiency, cinematic accuracy and reliability characteristics; also, it is capable to transmit high powers and forces. High efficiency is provided, to a great extent, by low thermal losses in a gear resulting from friction of teeth. Similar to worm gear motors, the advantages of a parallel-shaft gear are imparted to the corresponding gear motors as well.

However, these assemblies are not provided with a self-locking function, and it is difficult to reach high gear ratios for these assemblies with small sizes preserved. Moreover, the noise, generated by them during operation, is higher.

Depending on relative positioning of shafts in a gear train, parallel-shaft gear motors are subdivided into coaxial and parallel ones. Unlike the gearboxess, in case of which this classification defines the positioning of input and output shafts relative to each other, in gear motors, the positions of an electric motor shaft and an output shaft are compared. Depending on the number of stages, these assemblies can be single-stage and double-stage ones etc.

Parallel-shaft gear motors can be configured both horizontally and vertically but the latter configuration remains more common. Lugs, flanges or accessories for putting-on can be used to mount the assemblies.

The precondition for long service life, reliability and, generally, high operability characteristics of a parallel-shaft gear motor is its correct and reasonable choice during design process in accordance with normative documents.

Bevel gear motors

Geared motors, gearmotors

Bevel gear motors are the subtype of parallel-shaft gear motors, and the major difference is that the bevel gear wheels are used. Axes of meshed bevel gear wheels cross at an angle (usually 90°), set by the configuration of these wheels. This is a key feature because, due to it, it is possible to vary relative position of a gear motor output shaft and an electric motor shaft or, more specifically, an angle between them. A bevel gear is used quite often in a gear motor configuration in combination with parallel-shaft gears just to make it possible to vary the position of an output shaft.

This type of gear motors preserves the advantages of parallel-shaft ones, such as high efficiency and resistance against short-time and varying loads; however, the complexity of manufacturing of these gears resulting in higher costs of corresponding gear motors and, also, additional (axial and radial) loads arising in them are the disadvantages of this type of assemblies.

The need to vary directions of torque transmission arises quite often, resulting in a wide scope of application of bevel gear motors. They are used in drives of conveyor lines, machine tools, hoisting equipment, pulling equipment for mines etc. The areas of application cover agriculture, construction, machinery building industry, electric drives for manufacturing automation etc.

Comparing the most common types of gear motors

Since worm and parallel-shaft gear motors are most common in industry, it is reasonable to carry out a comparative analysis related to their most significant characteristics, which determine a final decision when choosing a drive for each specific case. As compared with worm gear motors, parallel-shaft gear motors demonstrate the following advantages:

  • high efficiency (98%, with the gear ratio not considered), making them extremely cost-effective in terms of energy consumption;
  • high load capacity, making the parallel-shaft gear motor capable to transmit much higher force than the worm gear motor having similar dimensions;
  • high cinematic accuracy resulting from relatively small play of the output shaft;
  • low energy losses for heat release caused by friction in a gear;
  • operation conditions can be set to use an output shaft as a driving shaft;
  • operation stability under frequent gear motor starts and stops and under uneven loads.

Planetary gear motors

Geared motors, gearmotors

A planetary gear, used as the basis for this type of motor gears, is a mechanical gear that consists of several pinions. There is a sun pinion in the center, meshed with several smaller-size pinions denoted as planetary ones. Planetary pinions (satellites) are joined into a single configuration by a carrier; however, they remain capable to rotate about their axes. Satellites are also meshed (in addition to the sun pinion) with the crown pinion. Motion of satellites around the sun pinion resembles motion of planets around the Sun; this is an origin for the name of the gear itself and its components.

Depending on the cinematic configuration, one element in a gear remains motionless (a carrier, a sun pinion or a crown pinion), and two other elements become the driving and driven ones. If all three elements are movable, the planetary gear is denoted as the differential gear. Due to a differential gear, motion composition or decomposition can be implemented, and this capability is used in automobiles and machine tools. Also, planetary gear motors are capable to transmit significant forces with high efficiency preserved. As one more important advantage of these assemblies, their small dimensions and weight should be noted. The latter, to a great extent, results from dense layout of the planetary gear and the specific features of its design.

Moreover, there is a subtype of planetary gear motors that are called eccentric gear motors. In terms of design, the distinctions of eccentric gear motors include an eccentric shaft and unbalanced weight on a shaft of the eccentric. This weight balances inertial force of a carrier and satellites; this, however, leads to increase of axial dimensions of the unit and to more complex design. An eccentric shaft is either mounted in a separate housing (with a coupling used to fasten it onto a motor shaft), or a cantilever configuration is used to place the eccentric shaft directly on a motor shaft.

Due to unique properties of a planetary gear, similar planetary gear motors are used widely in various industries, such as petrochemical, pharmaceutical and food-processing industries, metallurgy, mining, machinery building and water treatment. This type of gear motors are often used as drives for mixing equipment.

Harmonic gear motors

Geared motors, gearmotors

A harmonic gear is among the most advanced and feasible gears. Respectively, gear motors, designed on the basis of this gear, also demonstrate high effectiveness, combining the advantages of gear trains and flexible gears. This type of gears was invented in 1959 by W. Musser, the U.S. engineer.

The major components of a harmonic gear (also referred as a strain wave gear motor) are a solid gear wheel, a toothed flexible element and a wave generator. The teeth of a wheel are directed inward, and the teeth of a flexible element are directed outward. The number of teeth of a flexible element is slightly less. The wave generator is a mechanism that stretches the flexible element; as a result, it forms two or more zones of meshing with the wheel. At the same time, in areas between the meshing zones, there is absolutely no contact between a flexible element and a wheel. A wave generator is connected with an input shaft, and a flexible element is connected with an output shaft. The principle of operation of a harmonic gear motor is based on a strain of a flexible part. Following the rotary motion of a wave generator, flexible element strains also move; their speed is constant, and it depends on the wave generator rotation speed.

The flexible element, used in the design, imparts several significant advantages to the wave gear motors. First of all, one should note the gear elements’ high precision and smoothness of motion, as well as capability to provide high gear ratios, thus providing for successful use of wave gear motors in several special areas. Moreover, it is quite important that a motor can be separated from the rest of an assembly without any leaks; due to this, wave gearboxess are applicable in toxic, corrosive and explosive environments. They also characterized by their high operating characteristics, such as low noisiness, vibration-free operation and smooth motion in case of variation of operational conditions. At the same time, these gear motors preserve high efficiency and, due to dense layout of elements, have comparatively small dimensions and weight.

The major disadvantage of these assemblies is a high level of requirements with regard to the flexible element that must be highly wear-resistant and elastic. It is critically important to choose the material correctly for manufacturing of the flexible wheel.

A number of characteristics of wave gear motors is a background for their wide scope of application in many industries. For example, they are often used as drives for hoisting machines, at chemical plants with aggressive environments, in missile and aircraft industry. One should also not that they are used in manufacturing of various robots, handling devices and positioning systems where high accuracy and smoothness of motions must be ensured.

The following methods can be used to mount a wave gear motor housing:

  • on lugs;
  • with flanges on an output;
  • by putting on, with a hollow output shaft.

Connection with a driving shaft by couplings or by a gear (chain or belt gear) is typical of the first mounting method. In the second method, a gear motor shaft is aligned with a driving shaft. The typical feature of the third mounting method is putting the gearboxes shaft on the input part of the driving shaft.

Gear motor application advantages

Undoubtedly, if sufficient space for installation is available and there are no restrictions in terms of weight, a simple combination of a motor and a gearboxes may be preferable. However, gear motors, as a rule, have smaller weight and dimensions than the alternative drives made as assemblies of a motor and a gearboxes; moreover, mounting and maintenance of gear motors are significantly easier. For instance, for assemblies mounted by putting on, even a frame structure is not required for mounting. Often, especially in automation systems and in cases when the equipment must be placed within a limited volume, space-saving matter can be critical.

Smaller weight is also preferable when a drive must be chosen for various handling devices and positioning systems because a drive is often installed directly on movable elements, and their additional weight is extremely undesirable. To make the weight of gear motors even smaller, spring thrust rings can be used instead of covers to transfer axial forces from the shaft to the housing, resulting in additional reduction of weight of the gearboxes. However, additional processing of both rings and grooves for them is necessary for this replacement.

Gearboxes and polymeric equipment
Bevel gearbox
Casting machines, injection molding machines
Extruders, extrusion lines
Gearboxes. Main description
Parallel-shaft gearbox
Polymer substance press, preforming machines
Roll mills, calenders
Planetary gearboxes
Variable-speed drive
Worm gearbox

Upon becoming the official distributer of gearmotors, our company ‘Intech GmbH’ LLC (ООО «Интех ГмбХ»), carries out the following: finds the buyers of your products on the market, conducts technical and commercial negotiations with the customers regarding the supplies of your equipment, concludes contracts. Should a bidding take place, we will collect and prepare all the documents required for the participation, conclude all the necessary contracts for the supply of your equipment, as well as register the goods (gearmotors) and conduct customs clearance procedures. We will also register a certificate of transaction (Passport of Deal) required for all foreign trade contracts in the foreign currency control department of the authorized Russian bank so that currency transaction could be effected. If required, our company will implement an equipment spacing project in order to integrate your equipment into the existing or newly built production plant.

We are convinced that our company ‘Intech GmbH’ LLC (ООО «Интех ГмбХ»), will become your reliable, qualified and efficient partner & distributor in Russia.

We are always open for cooperation, so let’s move forward together!

Intech GmbH SARLIntech GmbH SARL