When the input shaft rotates, the helical gears and bevel gears mesh with each other.

　　When the input shaft rotates, power is transmitted to the output shaft via the meshing of helical gears and bevel gears, achieving speed reduction. The tooth surfaces of helical gears are inclined and transmit power by engaging with the tooth surfaces of adjacent gears; in contrast, the tooth surfaces of bevel gears (also known as cone gears) are curved, and power is transmitted through rolling engagement with the tooth surfaces of mating gears. This combined transmission arrangement leverages both the smooth operation characteristic of helical gears and the advantage of bevel gears in changing the direction of power transmission.

　　The core power source of a geared motor is the electric motor, which generates rotational power. The motor is connected to the reduction mechanism via its output shaft, transmitting power to the downstream reduction gears.

　　Deceleration mechanism:

　　Helical Gear Set: A helical gear set consists of multiple helical gears arranged according to a specific gear ratio. The teeth of helical gears are inclined at an angle relative to the axis; this design allows the gears to engage and disengage gradually, thereby reducing impact and vibration.

　　Bevel gear set (spiral bevel gears): The bevel gear set is positioned behind or to the side of the helical gear set and is used to change the direction of power transmission or to further reduce speed. The tooth surfaces of bevel gears are conical, with their axes intersecting at an angle; power is transmitted through rolling contact.

　　Bearings and Shafts: The reduction mechanism also includes multiple bearings and shafts, which support and secure the gears, ensuring smooth rotation.

　　Housing and Sealing: The geared motor is enclosed in a robust housing to prevent dust, moisture, and other contaminants from entering and compromising transmission performance. The housing is equipped with vent valves and sealing caps to ensure internal air circulation and prevent leaks.

　　Gear meshing process

　　Input power: The rotational power generated by the motor is transmitted via the output shaft to the first helical gear (the input gear).

　　Helical gear engagement: The input gear begins to mesh with the adjacent helical gear. Because the teeth of a helical gear are inclined, they gradually enter and exit the contact zone during meshing; this gradual engagement helps reduce impact and vibration. As the input gear rotates, power is smoothly transmitted to the subsequent helical gears.

　　Bevel gear meshing (where applicable): When power is transmitted to a bevel gear set, the tooth surfaces of the bevel gears engage in rolling contact with those of the mating gear. Because the tooth surfaces of bevel gears are conical, they can change the direction of transmission while continuing to convey power. During meshing, the tooth surfaces of the bevel gears remain in close contact with those of the adjacent gear, ensuring accurate and reliable power transmission.

　　Output Power: After undergoing stepwise speed reduction and transmission through helical gears and bevel gears, the power is ultimately delivered to the external load via the output shaft.

　　Smooth transmission: The meshing of helical gears and bevel gears is smooth, reducing impact and vibration and lowering noise levels.

　　High load-carrying capacity: The structural design of helical gears and bevel gears ensures robust load-bearing performance, making them suitable for a wide range of operating conditions.

　　Wide transmission ratio range: By appropriately designing the number of teeth and module of helical gears and bevel gears, a broad transmission ratio range can be achieved, meeting the requirements of various operating conditions.

　　Compact Design: The structural design of helical–bevel gear reduction motors is typically compact, helping to save space and simplify installation.

　　High flexibility: The parameters of helical gears and bevel gears can be adjusted to meet specific requirements, enabling a variety of transmission performance characteristics.

　　Helical‑bevel gear reduction motors are widely used in the speed‑reduction systems of various types of machinery, including metallurgical, mining, lifting, light‑industry, chemical, transportation, and construction equipment. Their high torque output, reliable operation under harsh environmental conditions, and exceptional versatility make them an ideal choice for numerous industrial applications.

　　High torque: Capable of delivering substantial output torque, meeting the demands of heavy-load operating conditions.

　　Strong environmental adaptability: capable of operating safely and stably under harsh environmental conditions.

　　Flexibility: By adjusting gear parameters, it can be adapted to meet various transmission requirements.