Constant Section Snap Rings

A Constant Section Retaining Ring (Snap Ring) is a retaining ring often specified for heavy-duty or impact loading applications.

Smalley Constant Section Retaining Rings are produced by edgewinding, with no custom tooling charges. They have been specified for many years in the automotive and heavy equipment industries as a standard choice of engineers.

Smalley Offers Eight Snap Ring Series from Stock

• Over 1,000 stock sizes
• Inch and Metric series rings available
• Stocked from .375” to 10” diameters, 13 mm to 300 mm
• Customs available from .157” to 120”
• New series, interchangeable with Eaton® snap rings
• Free samples to test in your application

Types of Smalley Constant Section Retaining Rings

Standard Parts

• 1/2" - 11" Diameters & 
• 13 mm – 300 mm Diameters 
• Carbon and Stainless Steel
   

Eaton Style Snap Rings

Smalley offers 4 series of Eaton style snap rings from stock. Smalley's XAH, XAS, XDH and XDS series contains over 300 snap rings that are interchangeable with Eaton Snap Rings.

• XAH & XAS
• XDH & XDS

Standard Parts

• .375” – 10” Diameters
• Carbon and Stainless Steel

Request Samples

Request free samples of any of our standard parts to test in your application. 

Interchange Listing

Alternative Ring End Configurations

Additional end types can be manufactured to meet your Constant Section Retaining Ring requirements. The ring end configurations pictured below are available from Smalley. Type A, B, C and E rings are available for both internal and external applications; designated by the -H (housing) and -S (shaft) rings.

A-H (U-Notch)	A-S (U-Notch)	B-H (Double Scallop)
B-S (Double Scallop)	C-H (Double Angle)	C-S (Double Angle)
E-H (Single Scallop)	E-S (Single Scallop)	D (Single Angle)
F (Pi Cut)	G (Flat Cut)	H (Holes)

Learn More About Constant Section Retaining Rings (Snap Ring)

Applications

Bearing

The application below features a XAH series snap ring installed in an internal groove. The heavy-duty ring retains the bearing in the housing.

Actuator Valve

A heavy-duty Constant Section Ring was installed to absorb the occasional shock loading of the pistons. The rings feature special ends allowing for easy installation and removal using compatible tools and have a profile designed for high thrust capacity.