Gearmotor: varieties and selection criteria

Gear Motors: Advantages and Features

A gear motor is a unique mechanism that combines two main functions: an electric motor and a gearbox. Such devices are used in various industrial fields due to their high efficiency. Their advantages also include ease of installation, maintenance, compactness, and convenience in use.

Main Characteristics and Classification of Gear Motors

The working principle of a gear motor is based on the conversion of different types of energy into mechanical energy. The gearbox transforms the torque produced by the electric motor through one or several mechanical transmissions. The main elements of a gear motor that can be visually identified include the electric motor and the gearbox, which represents a housing with gears. Although the design may vary depending on the area of use, the principle of their operation remains unchanged.

There are many types of gear motors, but the most common models feature the following types of transmissions:

  • • worm;
  • • cylindrical;
  • • wave;
  • • planetary;

Today, the most popular are gear motors that use gear transmissions, distinguished by their reliability and durability.

Criteria for Choosing Gear Motors

Before purchasing, potential users should determine parameters such as the number of revolutions of the device, output torque parameters, and other factors related to loads and operational duration. High-quality models typically come with documentation that details parameters and operational terms under specific loads. Experienced companies employ experts who can assist in selecting the appropriate type of gear motor.

Popular Types of Gear Motors

One of the most common types is the worm gear motor, which can be single or double-stage. In single-stage models, the shafts are positioned at a crossed angle, while in double-stage ones, the axes can be parallel or perpendicular.

Cylindrical gear motors are also frequently used; however, they generally operate in horizontal planes due to the characteristics of their design.

Wave gear motors generate torque through cyclic displacements of deformation waves, while planetary designs are based on the movement of the axes of gears, allowing for very high gear ratios. Nevertheless, structural features limit their use in certain conditions.

Conclusion

In conclusion, it can be noted that due to the wear of mechanical transmissions and the moral aging of such devices, gearboxes in industry are increasingly being replaced by frequency-controlled drives, which are based on frequency converters.