Timing Belt Pulley Materials - Things to Consider

Hello Everyone .....!!!

Choosing the right construction material for a timing belt pulley can have dramatic repercussions. When designing a pulley you want a product that is reliable, has a long operation life, and is cost effective. Often, to achieve the desired results, that means there are two options for construction Material: Plastic or Metal.


Nylon Vs. Aluminum

Nylon:

.Lightweight
.Inertia control
.Energy saving
.Chemical resistance
.Material cost savings
.No coating to avoid oxidation

Aluminum:

.Lightweight (heavier than nylon)
.Durable
.Resistance to heat
.High tensile strength

When is Aluminum Preferable?

One of the main reasons for choosing aluminum as a material is its high tensile strength, making it ideal is high horsepower drive systems. Nylon, however, has a lower tensile strength than aluminum or steel but it is still sufficient for low horsepower drive systems.
One of the other most common reasons for turning to aluminum over nylon is its temperature resistance. In high temperature applications aluminum is preferable to nylon because aluminum has a higher temperature at which the belt will fail.

Why Choose Nylon?

Because of advancements in plastics technology, nylon is often a viable alternative to aluminum. While not all applications are equally served by nylon, nylon often offers a cost-effective alternative to heavier, more expensive aluminum pulleys.


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