Stock sizes in Carbon Spring Steel
SPEC retaining rings are specially suited for retaining mating component
parts. Typical applications include power transmission assemblies, pneumatic
and hydraulic cylinders, bearing retainment, shaft retainment, as well
as many other uses.
Sizes other than those listed are available as a special run. Delivery depends
on availability of raw material.
Material
Spring Steel.
Commercial - SAE 1070-1090
Military - MIL-S-46049
No charge for certification of compliance when requested; certificate
of chemical analysis available, See Price Book.
High carbon rings are not recommended for applications where the temperature
exceeds 250 Deg. F. (121 Deg. C).
Finish
Standard finish is that of the normal wire. Plated finishes furnished
on request.
Installation
SPEC Retaining Rings are designed to be installed into a groove by inserting
the end of the ring into the groove and then working the immediate coil
into the groove. Continue around the ring until fully installed and properly
seated.
Application Considerations
Thrust load is a maximum force that can be applied to the ring without
the ring material shearing. To approach this level of thrust load the
groove must be sharp, with minimal diameter clearance between retained
components, and the load applied uniformly to the load surface of the
ring.
In most cases the load carrying capacity of the groove is less than the ring
due to lower tensile strengths of the groove material. For additional information
regarding thrust loads contact our Engineering Department
Factors that can have an effect on thrust load include: Radii and Chamfer of
groove - generally the larger the radii or the chamfer the lower the load.
Centrifugal force on shaft installations could cause the ring diameter to grow
on external applications which results in less retaining surface within the
groove. Contact Engineering Department for additional information.
Rotation of mating parts can dislodge the ring. If the application requires
rotation we suggest contacting our Engineering Department.
Yield strength - This pertains to both the yield strength in compression of
the groove as well as that of the ring. Three failure combinations can occur.
Groove Deformation - The yield strength of the groove is less than
that of the ring.
Ring Failure - The yield strength of the groove is greater than the yield strength
of the ring. The result is the shearing of the radial section of the ring material.
Combination Failure - This condition occurs when the groove yield and the ring
yield strengths are similar.
Stock Ring Configuration & Duties
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