Advantages & Disadvantages of Plastic Gears

A pile of plastic gears.
••• alan64/iStock/Getty Images

Despite the prevalence of electronic devices, a great deal of current technology relies on more traditional machinery to get the job done. For example, gears still play a large role in many important machines, from wind farms to heart pumps. To save cost and weight, many gears are made of plastic.

Corrosion

Unlike metal gears, plastic gears are completely immune to corrosion.

Weight

Gears made of plastic tend to be lighter in weight than similar gears made out of metal.

Cost

Plastic gears are, in general, less expensive to produce than those made of metal.

Strain

Plastic gears can warp under strain. This can be a problem if the plastic becomes hot.

Wear

Plastic gears can have their teeth worn down from repeated use. While this is true of any gear, plastic as a material isn't as durable as metals, though manufacturers can add coatings for the teeth.

Related Articles

What Are the Materials Used for Spur Gears?
What Is the Difference Between Sheet & Plate Steel?
Difference Between Polystyrene & Polyurethane
How to Calculate Gear Pitch
Is Styrofoam Biodegradable?
How to Calculate Gear Ratio
How to Shrink Rubber Bands
How to Calculate the Thickness of Aluminum Foil
Things Made Out of Tungsten
Materials Used for Gears & Pulleys
Uses of Spur Gears
The Disadvantages of Using Plastic Products
Difference Between Density & Mass
Does Mahi Mahi Have Fins & Scales?
What Is the Cost of Metal Roofing?
How to Convert Cubic Feet to Lbs
How to Calculate Weight Per Linear Foot
The Mechanical Properties of JIS SCM 420H Steel
What Is HDPE Plastic?
How to Convert Pounds Into Kilograms in Two Simple...

Dont Go!

We Have More Great Sciencing Articles!