Guangming Group shares today what PM dual gears are

PM dual gear (powder metallurgy dual gear)

PM = Powder Metallurgy， Powder metallurgy, PM double gear=powder metallurgy double gear/double-layer gear, is a gear that is integrally formed, coaxial with two different tooth numbers/moduli, and is made by pressing and sintering metal powder. It belongs to precision transmission parts.

1、 Core structure

Two gears of different sizes (spur/helical) are integrated on one shaft, with varying module and number of teeth

Integrated sintering molding, no splicing, high precision, good concentricity

2、 Common materials and performance

Mainstream: Iron based alloys (Fe-Cu-C, Fe-Ni-Mo) with a density of ≥ 6.8g/cm ³

Hardness: HRB45~HRC35, with built-in pores for self-lubricating, wear-resistant, and low noise

Modulus: 0.3-5.0mm, commonly used 0.5/0.6/1.0mm, suitable for small reduction mechanisms

3、 Technological advantages (compared to machined gears)

One time molding, low cost, high efficiency, suitable for large quantities

No cutting required, material utilization rate close to 100%

Porous structure, self-lubricating, shock-absorbing, and low noise

Suitable for micro and complex dual gears (motors, gearboxes, household appliances)

4、 Main applications

Automobile: gearbox, starter motor, wiper

Home appliances/office: printers, fans, floor sweepers, gearboxes

Industry: Small reducers, actuators, transmission mechanisms

5、 Common specification examples

Modulus: 0.5+0.5, 1.0+1.5

Number of teeth: 25+10, 40+13, 62+16

Aperture: 2-10mm, height 10-30mm

Powder metallurgy, metal injection molding, powder metallurgy gears

Guangming Group focuses on the research and development of metal forming technology and wear-resistant materials. Its main products include metal compression molding and injection molding powder metallurgy products.

The company has a team of high-quality talents, with the founding team originating from the Guangzhou Nonferrous Metals Research Institute, a directly affiliated national and ministerial level scientific research institution. It has rich industry experience and research and development capabilities, providing a continuous source of innovation power for the company's development. The company has successively obtained 5 invention patents and more than 30 utility model patents. It has passed the IATF16949 quality management system, ISO9001-2015 quality management system, ISO14001 environmental management system, intellectual property management system, and obtained international trademark certification. It is an innovative enterprise in Guangdong Province, a small giant enterprise in science and technology in Guangzhou, a member of the Guangdong Powder Metallurgy Industry Technology Innovation Alliance, and an initiator of the Guangzhou Advanced Powder Metallurgy Cluster Promotion Center.