R&D Center

Slewing Drive Worm Gear & Worm


Slewing drive worm gear is a commonly used transmission device, which is composed of slewing drive worm and rotary drive worm gear, which can achieve large speed ratio and direction change.

The manufacturing process of rotary drive worm gear generally includes the following steps:

Raw material preparation: select appropriate materials, such as carbon steel, alloy steel, bronze, etc., for cutting, sawing, forging and other pretreatment.

CNC machining: CNC machine tools are used for turning and milling, so that the shape, size and accuracy of the rotary drive worm gear meet the design requirements.

Heat treatment: the rotary drive worm gear is quenched, carburized and other heat treatments to improve its hardness and wear resistance.

Tooth cutting processing: use a special tooth cutting machine or gear grinding machine for tooth shape processing to form the tooth profile and tooth surface of the rotary drive worm gear.

Inspection and assembly: the quality inspection of the slew drive worm gear, such as size, accuracy, hardness, etc., is then installed in the transmission box in conjunction with the rotary drive worm.


Slewing drive worm manufacturing process:

Material preparation: select the appropriate material, such as carbon steel or alloy steel, forging, annealing and other pretreatment to improve the structure and properties of the metal.

Rough turning: use machine tools such as lathes or milling machines to process the billet into a roughly rotary drive worm shape to ensure coaxiality and dimensional accuracy, leaving a certain finishing allowance.

Heat treatment: According to different requirements, the rotary drive worm is carburized, quenched, tempered, nitrided and other heat treatment processes to enhance the hardness, wear resistance and fatigue resistance of the rotary drive worm.

Semi-refined turning: The rotary drive worm is further processed into a shape and size close to the final shape and size by machine tools such as lathes or milling machines, ensuring the accuracy of coaxiality and roundness, leaving a certain amount of fine grinding allowance.

Pliers (resting incomplete teeth): The helical surface of the rotary drive worm is cut or rolled with a fitter tool or a special machine tool to form an incomplete tooth shape in order to mesh with the rotary drive worm gear.

Low temperature aging: Aging the rotary drive worm at low temperature (such as -80 °C) to eliminate residual stress and reduce deformation.

Fine grinding: use machine tools such as grinding machines or honing machines to precision grind the outer circle, end face, inner hole, spiral surface and other parts of the rotary drive worm to achieve the final shape and dimensional accuracy and improve the surface quality.