15 Jul, 2015

Selection of improper construction material for timing belt pulley may lead to dramatic repercussions. When crafting a pulley your aim is to create a product that is reliable, with long operation life, and inexpensive at the same time. To achieve the desired results you need to use the right material and there are two options available for construction material: plastic or metal.

Let’s have an insight in the difference between plastic and metal timing belt pulley material that can help you make the right decision of selecting the right material for desired results:


Following are some of the properties of nylon timing belt pulley material:

  • These are lightweight, easy to handle
  • Inertia control
  • Saves energy
  • Resistant to chemicals
  • Material cost efficient
  • No coating is required to avoid oxidation


Aluminium has its own specific features that set it apart from its plastic counterpart:

  • Although it is also lightweight nut heavier than nylon
  • Quit durable
  • It is heat resistant
  • Have high tensile strength

When to Choose Aluminum Timing Belt Pulley?

If you are looking for high tensile strength, aluminium is the ideal selection as it has high horsepower drive systems. Whereas nylon is packed with a lower tensile strength compared to aluminum or steel but it still suffices for low horsepower drive systems.

Yet another reason that can help you opt for aluminum over nylon is its resistance to temperature. Under the high temperature conditions aluminum take the front seat as compare to nylon. This is because aluminum has a higher temperature resistance capacity.

When to Choose Nylon Timing Pulley?

Due to constant evolution in plastics technology, nylon can be the most flexible option over aluminum. While it is not all the machinery that can be operated by nylon, it often provides a durable and cost-effective alternative to heavier and expensive aluminum pulleys.

The Fusion Concept

As discussed we have both nylon and aluminum with their respective properties that make them ideal materials for timing belt pulley, combining these two can also be the preferable construction process. Using pulleys that is designed with the fusion of metal and lightweight plastic can result a high strength-to-weight ratio and deliver low inertia leading to longer life and better product quality.

Custom Timing Belt Pulley

Apart from the standard timing pulley there are also custom designs available for specific application. These are created by modifying and customizing a standard timing belt pulley.


There are majorly two types of timing pulley materials available but considering the evolving dynamic needs of market a fusion of both types of pulley material can also be available, given the specific need of the business. It is entirely the personal choice of the business to select the desired timing pulley material for use.

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