Smalley Spiral Spirolox Retaining Rings - Available Exclusively in Canada from RotoPrecision Inc.

Smalley Spiral Retaining Rings

Smalley Retaining Rings

Smalley Spiral Retaining Rings, also known as Spirolox® retaining rings, are available exclusively from Smalley.  Spiral retaining rings have no protruding burrs or Ears-to-Interfere® with mating components in an assembly. They are manufactured by coiling the ring from flat wire in a variety of materials and produce no scrap which makes then economical and quick to produce in  carbon steel, stainless steel, copper and many other alloys. They are generally interchangeable with ordinary snap ring (circlip grooves).

If you require special designs, take advantage of Smalley's No-Tooling-Cost™ process; a process perfect for large runs, prototypes and midstream design changes. Whatever your application, Smalley has the cost-effective and innovative design solution.

Quick Specifications

• No gap - Smalley spiral retaining rings offer a full 360° retaining surface

• Over 6000 standard stock sizes from 1/4” to 16” (6 mm to 400 mm)

• Specials from .200" to 120" (5 mm to 3000 mm)

• Available materials include carbon and stainless steel, Inconel, Elgiloy (to NACE® standards), Beryllium Copper, Waspaloy, Hastelloy, Monel, A-286 and others

• Uniform cross section with no protruding burrs or "Ears-to-Interfere®" in assemblies

• Made-to-order rings available through Smalley’s No-Tooling-Charges™ process

• Deliveries in as little as two weeks including free samples and working prototypes.

• Easy installation and removal 

Product Range

Series (Click a Series for PDF Charts)
Icon Smalley Spiral Retaining Ring Light Duty, Single Turn, Spirolox®
The VH/VS and the VHM/VSM are specified for light duty, low clearance applications or where axial positioning rather than load carrying is the principal function. These retaining rings are economically produced and easy to use. Ideal for applications where thrust loads are moderate.

PDF Icon VH

Internal, Inch

PDF Icon VHM

Internal, Metric

PDF Icon VS

External, Inch

PDF Icon VSM

External, Metric
Icon Smalley Spiral Retaining Ring Medium Duty, 2-Turn, Medium Duty, 2-Turn, Spirolox®
The WH & WS series is Smalley's most popular retaining ring series with the greatest number of standard retaining ring sizes available from stock.  They easily handle thrust loads imposed by light or medium series bearings. The WH & WS series is Smalley's most popular retaining ring series with the greatest number of standard retaining ring sizes available from stock.  They easily handle thrust loads imposed by light or medium series bearings.

PDF Icon WH

Internal, Inch

PDF Icon WS

External, Inch
Icon Smalley Spiral Retaining Ring Medium / Heavy Duty, 2-Turn, Spirolox®
Many original equipment manufacturers have set groove dimensions specifically for the WHT & WST rings. While easier to install, this series has load carrying ratings close to Smalley heavy duty retaining ring designs. They are also available in 3-turn for added load capacities

PDF Icon WHT

Internal, Inch

PDF Icon WST

External, Inch
Icon Smalley Spiral Retaining Ring Heavy Duty, 2-Turn, Spirolox®
The WHM & WSM series is designed for the toughest retaining ring jobs. They use standard industry groove dimensions and are interchangeable with many stamped retaining rings. This series should be specified for thrust loads that demand deep groove, heavy section capacity.

PDF Icon WHM

Internal, Inch

PDF Icon WSM

External, Inch
Icon Smalley Spiral Retaining Ring Metric Aerospace Series, 2-Turn,Spirolox®
The EH & ES series metric retaining rings are Smalley's standard spiral retaining rings produced to Metric Aerospace specifications. They fit grooves specifically designed for 2-turn spiral retaining rings and accommodate light to medium duty applications.

PDF Icon EH

Internal, Metric

PDF Icon ES

External, Metric
Icon Smalley Spiral Retaining Ring DIN Metric Series,  2-Turn, Spirolox®
The DNH & DNS series are Smalley's equivalent to the European or "Hard" metric retaining ring series. With their 2-turn offset configuration, these spiral rings will fit into the grooves established by DIN specifications.

PDF Icon DNH

Internal, Metric

PDF Icon DNS

External, Metric
Icon Smalley Spiral Retaining Ring ID / OD Lock
Spiral retaining rings can operate in an internal and an external groove simultaneously. Spiral type retaining rings have many benefits for the ID/OD Lock including: concealed fastening, no required assembly tooling,  and a 360° rotational capacity. The application is tamper-proof and aesthetically pleasing. The retaining ring is initially installed in the housing groove. When the mating component in the assembly is added, the retaining ring compresses into the groove. The groove is deep enough for the rings radial wall to fit into as the component slides into position. Finally, when the grooves meet, the retaining ring snaps into the shaft groove (groove depth equals 1/2 the retaining rings radial wall) while still in the housing groove.
PDF Icon Additional Information
• ID / OD Lock


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