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Daemar’s line up of Engineered Fasteners provide non-threaded fastener solutions for a wide range of applications. Products include: retaining rings (tapered, constant section, spiral), wave springs, disc springs, self-compensating hose clamps, push-on fasteners, plastic fasteners, and installation tools.
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Getting Started with Retaining Rings
Reduce your fastener assembly costs by designing in a Retaining Ring. Consider replacing costly traditional fasteners with retaining rings and enjoy savings you didn’t know were possible. Retaining Rings can also handle many “Non-Traditional” fastener requirements for even greater savings. There are many criteria that influence the correct ring for your application, such as: how the ring will be installed (on a shaft or in a housing) and the operating environment (material and finish). Before you designate a retaining ring for your application, follow these simple design consideration steps.
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Spiral Rings Provide Greater Design Freedom
Spiral rings provide a strong, yet flexible, 360 degree retaining surface. They offer you greater freedom of design and speed production by reducing the number of required parts and eliminating excess machining such as counterboring, threading, drilling, and other complicated and costly processes. Spiral rings offer space savings in a radial direction since there are no assembly lugs as with tapered retaining rings. Daemar stocks a complete line of spiral rings from light duty single turn rings to heavy duty multi-turns.
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Rings Designed to Compensate for Accumulated Tolerances in Assemblies
If you are looking for a retaining ring to act as a spring or as a preload on parts to reduce chatter or vibration, then you need either a bowed (BHO, BSH for resilient end-play take up) or a beveled (VHO, VSH for rigid end-play take up) retaining ring. Once snapped into the groove, bowed rings exert a force or “preload” on the retained parts made to the low side of the tolerances “snugging” everything up. They also act like a spring and “give” when parts made to the high side of the tolerances extend too far into the groove.
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Disc Springs Save Space in Assemblies
DMR Disc Springs provide shock absorption, energy storage and high spring forces with little deflection and while utilizing minimal space in an assembly. Disc Springs are utilized in many applications including actuators and ball valves, with standard outside diameters ranging from 6 mm to 250 mm. On Request, Daemar can deliver pre-assembled Disc Springs in stack formation or on a guided device. Stack formations provide specific load-deflection diagrams, small load tolerance. Stacked parts can be tested for 100 % load capacity to verify proper stacking.
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