Benefits of Plastic Injection Molding Gears

a plastic injection molding company

Previously, plastic gears were found in very limited applications due to the uncertainty around their response to chemicals, temperature, moisture, as well as other elements. However, this has changed.

Today, the true benefits of plastic gears are finally being acknowledged as process control, material processing, and scientific plastic molding design are advancing to new levels.

Injection-molded plastic gears are now being used in the automotive industry, the medical industry, industrial equipment, electronic & electrical equipment, and many more.

Here, we discuss some benefits of plastic injection molding gears:

There’s no need for lubrication

Although oil and grease can lubricate plastics, plastics’ inherent lubricity makes them an ideal choice for applications requiring dry gears.

They’re immune to corrosion

Plastics aren’t a corrosive material. Whereas, metals have limited use in water, some chemicals, and other situations due to their corrosive properties.

They have better shock absorption

Compared to their metal counterparts, plastic injection molding gears absorb impacts loads better. In addition, plastic gears can distribute localized loads well.

one of many plastic injection molded parts created by PTMS

They’re bigger and stronger

Unlike metal gears which typically are of the same size, plastic gears can be made wider and larger. Due to this, plastic gears can bear greater load capacity.

They have a flexible design

There are a lot of limitations when it comes to producing metal gears. But when it comes to plastics, manufacturers have greater freedom with the designs. The injection molding process enables the creation of shapes for different types of gears.

They don’t produce a lot of noise

Metals can create a lot of noise, especially with larger weight loads. However, the plastic gears don’t produce a lot of noise—thanks to their noise-dampening properties.

They’re lightweight

Plastic materials like acetal and nylon have a specific gravity of approximately 1.4. This is far less than the 7.85 specific gravity of metal, making plastic gears superior when it comes to weight.

They’re more effective

Plastics are typically more affordable than metals and plastic gears produced don’t need any finishing touches. In fact, manufacturers love the idea of low-cost plastic injection molding.

PTMS provides injection molding services to customers worldwide

PTMS is an ISO9001-2008 certified plastic injection molding company with more than 20 years of experience in all kinds of plastic injection molding mass production.

Reach out to them directly for more information on their plastic injection molding parts!

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