drag links

Suspension, Brakes, Tires, Wheels etc..

drag links

Postby Jim100 » Fri Nov 10, 2017 8:40 am

Rare parts makes a adjustable drag link for 300 bucks that looks like a bolt clamp threaded sleeve with a couple of tie rod end on it.
do drag link ends differ from tie rod ends?
jim
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Re: drag links

Postby MadMC63 » Fri Nov 10, 2017 6:56 pm

Since nobody chimed in... Mine do. Some are big and some small and if you really must know.....Read on.
A rod end bearing, also known as a heim joint (N. America) or rose joint (U.K. and elsewhere), is a mechanical articulating joint. Such joints are used on the ends of control rods, steering links, tie rods, or anywhere a precision articulating joint is required, and where a clevis end (which requires perfect 90 degree alignment between the attached shaft and the second component) is unsuitable. A ball swivel with an opening through which a bolt or other attaching hardware may pass is pressed into a circular casing with a threaded shaft attached. The threaded portion may be either male or female. The heim joint's advantage is that the ball insert permits the rod or bolt passing through it to be misaligned to a limited degree (an angle other than 90 degrees). A link terminated in two heim joints permits misalignment of their attached shafts (viz., other than 180 degrees) when used in tension. When used in compression, the through-rods are forced to the extreme ends of their ball's misalignment range, which cocks the link at an oblique angle.

History
The spherical rod end bearing was developed by Nazi Germany during World War II.[1] When one of the first German planes to be shot down by the British in early 1940 was examined, they found this joint in use in the aircraft's control systems. Following this discovery, the Allied governments gave the H.G. Heim Company an exclusive patent to manufacture these joints in North America, while in the UK the patent passed to Rose Bearings Ltd.[2] The ubiquity of these manufacturers in their respective markets led to the terms heim joint and rose joint becoming synonymous with their product. After the patents ran out the common names stuck, although as of 2017 "rosejoint" remains a registered trademark of Minebea Mitsumi Inc.,[3] successor to Rose Bearings Ltd. Originally used in aircraft, the rod end bearing may be found in cars, trucks, race cars, motorcycles, lawn tractors, boats, industrial machines, go-karts, radio-control helicopters, and many more applications.
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