Pulley Gear

Pulley gears (synchronous pulleys) are key components in mechanical transmission systems.

Next Product Inquire Now

Product Description

The Core Role and Application Scenarios of Pulley Gears

Pulley gears (synchronous pulleys) are key components in mechanical transmission systems. They achieve high-precision transmission and stable motion control through the meshing of tooth shape and synchronous belt.

Its Core Functions Include:

Accurate transmission of motion

Change of motion direction and speed

High load bearing

Typical Application Areas:

3C testing equipment: circuit board testing, communication signal detection and other links rely on the high-precision transmission characteristics of synchronous pulleys;

Robotics and automation: as a core component of the reducer, it is used in the output end of the robot arm joint and servo motor to increase torque and reduce speed;

High-end manufacturing: precision transmission systems in aerospace, high-speed rail and other fields have extremely high requirements for gear wear resistance and reliability;

Medical equipment: automated equipment such as mask machines require synchronous pulleys to maintain stable transmission at high speeds.

Processing Equipment and Process Flow of Pulley Gears

Raw Material Selection and Inspection:
Select high-quality alloy steel such as 20CrMnti or 40C, and ensure that the materials meet the standards through chemical composition analysis and metallographic structure inspection.

Key Processing Equipment:
- Lathe: used for preliminary forming of outer circle, end face and inner hole;
- Milling machine/machining center: complete precision processing of tooth shape to ensure pitch and module accuracy;
- Heat treatment equipment: such as quenching furnace and tempering furnace to improve material hardness and wear resistance.

Heat Treatment Process:
- Quenching: rapid cooling to enhance surface hardness, but the temperature needs to be controlled to avoid deformation;
- Tempering: eliminate internal stress, improve toughness and dimensional stability.

Tolerance Inspection and Quality Control

- CMM (three-coordinate measuring machine): detect tooth profile accuracy, pitch circle diameter and form and position tolerance (such as parallelism, coaxiality);

- Microscope: observe tooth surface roughness and microscopic defects to ensure no cracks or burn marks;

- Comprehensive inspection: including meshing clearance test and dynamic balance verification to avoid vibration and noise in transmission.

Processing Precautions and Surface Treatment

Processing Precautions:
- Cutting parameters need to match material properties to avoid deformation caused by overheating;
- Ensure the coaxiality of the shaft and pulley during assembly to prevent eccentric wear;
- Eliminate tooth gap: use double gear staggered structure or helical gear gasket method to improve reverse transmission accuracy.

Surface Treatment Technology:
- Oxidation treatment: form an oxide film to enhance corrosion resistance;
- Electroplating (galvanizing, nickel plating): improve hardness and wear resistance;
- Spraying: improve appearance and protect against environmental erosion.

Company Advantages

Pulley gears are the "transmission heart" of modern industry, and their precision manufacturing process directly affects the performance and life of the equipment. Our factory strictly follows the standards for the entire process control from raw material selection to heat treatment, processing, and inspection, and combines advanced processes (such as high-frequency quenching and nano-coating) to further improve quality to meet the global market's demand for high-precision transmission systems.