Spiral retaining rings come in single-turn or multi-turn varieties. This process is economical when looking for a custom ring because there is no dedicated tooling (such as custom punch and die tooling). (Spiralox is a registered trademark of Smalley Steel Ring Co.) Because they are manufactured from wire, there is less scrap - making them more economical at larger diameters or when using stainless steel and exotic alloys. These are called spiral rings or Spirolox rings. Retaining rings can also be made from coiled flat wire. Spiral retaining rings - a cost-effective and reliable option E-clips are used when it is preferable not to slide a ring along the axis of a shaft. Similar to stamped rings, they become less cost effective as the required diameter increases in size. This can be a standard shaft or a stepped shaft. These rings are installed by pressing them radially onto a shaft groove. Radial retaining rings - also called e-clipsĪnother version of stamped rings are e-clips. Stamped rings can replace cotter pins and other traditional fasteners in an array of applications. The pliers are inserted into the lugs to separate or compress the ends so the retaining ring can clear the shaft or bore. Stamped rings are installed with the help of a special tool - snap ring pliers. However, the stamping process generates excess scrap causing them to be less cost effective when working with larger diameters. These are the most cost-effective retaining rings when working with small diameters. Stamped retaining rings are manufactured from sheet metal and feature twin lugs, sometimes called ears. Recognize stamped retaining rings by their ears Retaining rings exist in many forms including, stamped, spiral or Spirolox, constant section, hoop, e-clip, beveled, and wave-ring forms. They are used in assemblies as a cost-saving solution … to avoid machining a shoulder onto a mating component. These components reduce vibration, retain two parts of an assembly, and can withstand axial loading. Retaining rings are designed to fit into a machined groove either on the inside of a bore or on the outside of a shaft. Retaining rings are thin, circular, metal components that can be either stamped from a sheet or coiled from wire. In short, they create a removable shoulder preventing components from migrating out of proper position during operation. As with other joining hardware (such as cotter pins, screws, and bolts) retaining rings prevent mating components from excessive moving.
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