REDwire Four retaining rings facts that ring true

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Retainer rings are the humble yet heavy-duty fasteners that hold mechanisms together.

If you’ve ever used a power tool, turned a door handle or pushed a lawn mower, then chances are you’ve been in contact with a retainer ring.

Retainer rings are the humble yet heavy-duty fasteners that hold mechanisms together. These precision components are put onto shafts or bores, which act as shoulders to retain other parts in place inside a device, equipment or machinery.

No two retaining rings are alike. Read on to learn the four main types of retaining rings and their unique specifications.

Axially Assembled Rings

Typically the design standard for machined grooves, when installed these types of rings protrude to retain parts of the assembly.

Axially assembled rings can be installed internally inside housings and bores, or externally on shaft assemblies, either of which are connected along the rings' axis.

Radially Assembled Rings

Unlike axially assembled rings, radially assembled rings neither extend around the circumference of the grooves, nor have lugs or lug holes. Consequently, these specific rings are partially opened to one side, which requires installation from a radial direction.

Bowed Retaining Rings

Constructed to offset accrued demands during assemblies, bowed rings preload and apply power onto the retained parts once snapped into a groove.

Similar to a spring, these types of rings tensely hold all the retained parts together on the low side of the tolerance while they ease up when parts on the high side of the tolerance spread throughout the groove.

Self-Locking Rings

Groove installation is unnecessary for these certain rings, which in turn means a boost in production time and a drop in manufacturing costs.

Choose self-locking rings as an economically viable option if working on small applications with low thrust loads and if you can live with a permanent result since it is difficult to remove self-locking retaining rings once installed.

Daemar delivers devices of distinction - that has a nice ring to it

Since 1970, Daemar Inc. has excelled in delivering high quality industrial fluid sealing products and precision compone ntsto the North American manufacturing and MRO markets. We’re a proud supplier of Rotor Clip, an international leader and ISO 9002 certified manufacturer of precision retaining rings, including axial, radial, bowed and self-locking rings.

But, Daemar is more than just a supplier of world-class industrial goods. Daemar is also synonymous with superior customer service. We ensure that our clients’ successes are reflected in our Lean Manufacturing initiatives; from our own virtual stock to our vendor's inventory, our network of four stocking facilities is purposefully positioned with our customers’ needs in mind.

Deal with Daemar Inc. and contact us today or visit our virtual inventory without delay at


Daemar Inc.

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