12/31/2022 0 Comments Aircraft heim joints![]() For example, when constructing end links for a car this is a sufficient rod end, but it should not be used in higher load application applications such as control arms. This rod end style can also be used for some automotive applications. This is the most common commercial-grade rod end, since it has greater durability than a steel-raced (steel on steel) rod end and the motion of the ball is much smoother. This is a steel rod where the inside of the housing has been coated in PTFE to create a smoother surface with the coated ball. You can browse for steel rod ends by clicking here. ![]() These are not recommended for automotive applications and we recommend staying away from manufacturers who provide these in their kits for suspension components. The race is direct steel on steel, which can lead to shorter wear cycles, but of course is cheaper to produce. It provides a great value for many applications where the added expense of a higher-end rod end is not necessary. ![]() This is the most common rod end in use, largely for commercial non-automotive applications. So now that we've done our history lesson, here's the real info about the different varieties of rod ends. That's how the alternative names came about. Heim Company in the US and Rose Bearings Ltd. Once the Allies got the technology via an aircraft that was shot down, supposedly in the Spanish Civil War in 1930's, the exclusive patent was given to the H.G. The Germans came up spherical rod end bearings (the most proper and technical name for these) in the 1930's. Rod End, Heim Joint or Rose Joint?Īll three names mean the same thing and the difference is all just cultural and historical. ![]() Here's our guide to help you figure it out. So they're different great what's the point? Well, the differences are certainly not for vanity and when buying rod ends it's important to choose the right one for your application. ![]() The leftmost is coated in PTFE (Teflon, a trademark of Dupont), the middle in bronze and the right one has not coating, meaning the steel housing acts as the race. This is called the bearing race and there are a few difference options available. There's also a difference between these three that you can't really see: the inside of the housing that contains the spherical ball has different coatings. Other typical materials for rod ends, but not pictured above, are stainless steel and aluminum. From left to right, they're made of chrome moly, plated steel with plated steel. Turns out they're all made of very different materials and they therefore have very different properties and applications. Yes, one is female and two are male, but that's not the most important difference. ![]()
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