#Excessively large custom letter chain professional
#Excessively large custom letter chain series

Every drive requires lubrication, and the best option is a pump or stream lubrication. Lubrication is always critical for moving parts.

Is your lubrication system up to the job?

#Excessively large custom letter chain professional

Never hesitate to reach out to an industry professional for help in determining what may work best in an application. Matching specific features of roller chain to your application can result in more prolonged and efficient operation. Even small changes to chain components like this are often the most economical way to increase chain life.

#Excessively large custom letter chain series

There is also a heavy series version for most chains that feature thicker side plates and longer pins, which increase the max working load by about 10%. Quad-staked pins will increase the durability and resistance to heavy shocks. The same can be said for the rollers as well. Solid bushings will be able to better handle the requirements of operation compared to a bushing with a seam, resisting deformation at a much higher level. Oil ports in bushings provide improved lubrication to the areas that need it. Most roller chain manufacturers have features included in certain lines, typically premium roller chain, that will deter premature wear. Manufacturing methods and processes will have significant effects on how well the chain will perform. Factory-preloaded chain will reduce initial stretch, and consistent precision heat treatment creates a harder, more robust roller chain. The material and finish of the pin and bushing surfaces will influence how quickly they wear down. It’s worth confirming your calculations, consulting an engineer that specializes in power transmission or using a higher rated chain if your conditions are a bit extreme. If your machine runs somewhere hot, humid, at high altitudes, or is abnormal in any other way, your working load will be affected. Remember, these numbers came from manufacturer tests in a controlled environment. When designing a chain drive, make sure the parts used – including the chain – can handle the horsepower of your prime mover. This rating is developed through multiple types of tests examining when chains break and at what load breaks occur. Comprehensive testing by the manufacturer establishes the max working load for every chain. Once you’ve confirmed the correct installation of the roller chain, what’s next? A common problem causing excessive roller chain wear is load size. There should be no unusual noises or visible problems with the chain. Inspect the entire span of the chain once installed for the proper function of all components. Chain sag should be 2-4% of center distance, which is the distance between the center of the two shafts. You can use a straightedge or laser to check both these alignments at multiple points.įinally, your chain drive needs to be correctly tensioned and have an appropriate lubrication system in place before operation. The angular alignment of the shafts should be parallel to each other, and the axial alignment of the sprockets should be on the same plane. When installing your chain drive, make sure all the drive components are in good condition – from the bearings to the sprockets.Īlignment is crucial in preventing unnecessary wear and tear. Prevention is keyīefore troubleshooting, we recommend you review proper installation practices. Let’s troubleshoot with the most likely culprits first. Assuming the correct installation of your drive – lubrication, material finish, and sprocket placement can be factors in excessive roller chain wear.

The first lines of defense against any roller chain problem are proper installation and regular maintenance. Once roller chain elongation reaches 3% when used with a sprocket under 67 teeth, or 1.5% when used with a sprocket with 67 teeth or more, the chain needs to be replaced. Inevitably this movement causes elongation of the chain as the pin and bushing materials wear away. A well-maintained chain drive will keep your machine running strong over time, making it important to minimize the impact of wear.Īs the chain wraps around the sprocket, the pins and bushings wear through constant friction. The movement of chain around a sprocket naturally causes wear, but excessive roller chain wear and fatigue cause problems.

There’s a reason we replace roller chains regularly.