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Something about rod ends

rod ends

1, Description of the rod end.

This is a mechanical joint, also known as a “house joint” or “socket joint.” These joints are use on the ends of control rods, steering rods, tie rods, or wherever a precision joint is required. It usually consists of a spherical inner ring and a cylindrical hole to secure the shaft.

2, Different sizes and characteristics.

Rod End Bearings vary in size characteristics and features. Load capacity and maximum angular displacement are the most important features to consider. In most cases, the bearing motion is symmetrical and the maximum angular displacement is half of the total lateral range. Dimensional characteristics include structural units, bore diameter, main diameter, bearing thickness, housing diameter, overall length, and the thread length.

English units of measure include inches (in) and fractions of an inch. Metric units include millimeters (mm) and centimeters (cm). Bore diameter is the inside diameter (ID) of the bearing bore. The main diameter is the nominal diameter to the top of the thread. The thickness of the bearing is the length through the bore.

Housing diameter is the outside diameter (OD) of the bearing housing. Overall length is the distance from the top of the housing to the end of the shaft. Some rod tips are self-lubricating or have a grease hole.

3, Various threads.

A ball joint with a hole through which a bolt or other fastener can pass is press into a round body to which a threaded shaft is attach. The threaded part can be externally or internally threaded. The ends of the rods are fastened to the rods. And shafts with an externally threaded bolt or internally threaded body. Right-hand threads are tightened clockwise. And are the most common thread type. Left-hand threads tightened counterclockwise and must match the mating part.

4, Rod ends making materials

Metal rod ends made of brass, bronze, iron, or steel. And are often coat with zinc or chrome. Non-metal products made of plastic, nylon, and so on.

5, Application of Rod Ends

These bearings can use on the ends of cylinders, rods, rods, and shafts to compensate for angular misalignment between connected parts. They can also use in many aerospace, military, and automotive applications, as well as in some applications that allow for low to moderate shaft misalignment.

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