What is a Heim Joint

  
  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.

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What Kind of Ball Joints is the Best for Off-Road Vehicles

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  Basic Situation: An off-road racing vehicle weighs about 2 tons with the driver inside, most of its weight is distributed on the frame (body), the frame is connected to the pillar and wheels through the suspension system (all kinds of forked arms and swinging links). Ball joints are often used to connect the suspension system with the body and pillar. They connect different parts of a vehicle just like the joints that connect different parts of our body, from here we can see the importance of ball joints. Moreover, the vehicle is like an athlete who needs to jump up and down throughout the race, which requires the joints to be stronger and more durable, so that the vehicle can win out in a variety of special and harsh environments.     There are basically two kinds of ball joints that can be used in an off-road racing vehicle: 1) Injection molded. 2) Stamped.                   An...
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