How to Correctly Identify and Replace Machinery Timing Belts

When it’s time to replace a timing belt on a machine, the first step is to correctly identify the replacement belt that you need. Unfortunately, identifying timing belts can be difficult sometimes. For example, some belts don’t have specific identification codes, or the codes rub off after time. Thankfully, there are ways to identify the XL timing belts that you need.

Identifying the Timing Belt If There’s No Trade Size Indicator

If there’s no trade size indicator, you need to measure the width of the timing belt that you take off the machinery. While taking the timing belt off, pay close attention to the construction of the belt. For example, is the belt made out of rubber or polyurethane. Rubber is extremely flexible, while polyurethane feels more like plastic.

Pay Attention to the Teeth of the Timing Belt

The teeth on the timing belt can help you determine the tooth profile of the belt. It’s important to get the right tooth profile so that it will function properly for the machinery. For example, is the valley between the teeth curved? If so, it’s likely a high torque drive timing belt. If you spot HTD, STD or CTD on the belt, keep in mind that this is an indicator of the style of the timing belt.

Count the Teeth on the Timing Belt

An easy way to determine the size of the timing belt is to measure the circumference. However, what if the belt is broken or you can’t easily measure the distance around the outside edge? In such cases, you can always count the number of teeth that it has. An easy way to do this is to mark one of the teeth as the starting point. Then, count around the belt until you get back to your starting point. Use this number to determine the size of the belt.

Are you looking to buy high-quality XL timing belts for office machines, medical equipment or another type of machinery? If so, reach out to JJC & Associates so that we can help you find the timing belts that you need.

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