When Should I Replace My Roller Chain?
29th Apr 2022

A roller chain sprocket typically lasts about three applications of the same material. If it is wearing out in one of those points, you should replace it immediately, as it could be an early sign of problems with your drive. 

In addition to replacing the entire chain, you should also consider performing scheduled maintenance to ensure that your chain will last for as long as possible. 

To measure the wear on the chain, check its elongation. This is essential to determine the length where replacement is necessary. Make sure the sprockets are not corroded. It is important to replace the entire chain. Likewise, replace the sprockets when you replace the roller chain.

If you want to know when it’s time to replace your roller chain, continue reading this article. 

What Is a Roller Chain?

A roller chain is a cable carrier that connects gears to wheels. These chains are often made of stainless steel and can withstand extreme environmental conditions. These types of chains are used in a wide variety of applications, including construction, automotive, and agriculture. 

Roller chains are used in many different applications, from oil-field to film feeders and coupling. Depending on their purpose, they come in a variety of types. Standard and double-pitch light-load chains are available, as are attachment and oversized roller chains. Some features of a roller chain include offset links and self-lubrication. Single, double, triple, and quadruple-pitch rollers are available.

A roller chain is a versatile chain with multiple strands. There are several types of chains, each with different tensile strengths. Some of these chains are used in conveyor systems and bicycles, while others are primarily used in automobiles and cable tensioners. When they are woven, they are called a “roller” and are made up of many strands.

When to Replace a Roller Chain?

If you suspect that your roller chain has aged beyond its original lifespan, you should replace it immediately. By repairing the chain, you can prolong the life of your conveyor and save money. You can also prolong the life of the sprocket by performing regular maintenance. 

When looking for wear and tear on a roller chain, look for the following signs: elongation, sag, and pitch. The wear of your chain can be measured with sag and pitch measuring instrument or a Vernier caliper. A Vernier caliper measures the distance between the rollers and helps you identify the signs of wear and tear.

Proper lubrication and tension are important. The sag should be between two and four percent of the center distance, which is the distance between the sprockets. A worn or loose roller chain may also have visible damage or make unusual noises. 

Measure the distance between the inner plates of the sprocket and the outer surface of the roller. You need to measure the distance, add all the numbers and divide it by the number of times you have measured it. For example, 1+1+1 divided by 3. After that, you need to multiply it by the number of links in the chain. Lastly, you need to find the percentage of the elongation by dividing it by 100.

If you are unsure of the exact length of the roller chain, use a laser pointer to locate misalignments. The first step in replacing your roller chain is measuring its length. You can also measure the elongation rate of the chain by looking at the tight span. Usually, manufacturers recommend a maximum of three percent elongation rate. If you exceed that percentage, you should replace your roller chains.