Retaining Rings (also known as coil rings, coiled rings, snap rings, round wire rings, circlips, square section rings, rectangular section rings, custom shaped section rings, or tapered section rings) - close tolerances, short lead-times, improved product life

MW Industries, Inc. manufactures custom, precision-engineered retaining rings (also known as coil rings, coiled rings, snap rings, round wire rings, circlips, square section rings, rectangular section rings, custom shaped section rings, or tapered section rings) that are available in various end configurations and used in multiple applications.

Function of Retaining Rings (or Snap Rings)
Retaining rings are designed for use on shafts or in bores. The ring installs into a groove, thereby creating a shoulder to accurately position and retain other components of an assembly. The retaining shoulder is created when the ring attaches itself to the bore or shaft, typically by snapping into a groove.

Categories of Retaining Rings
The two major categories of retaining rings are internal and external. Internal rings are assembled inside a cylinder where the ring fits inside a hole (or bore). External rings are assembled on the outside (or external) of the shaft.

Retaining Rings vs. Traditional Fasteners
The advantages of using retaining rings include their ease of assembly, low cost to manufacture, and accuracy of positioning when compared to traditional fasteners. Retaining rings only require a groove. This is an advantage over traditional fasteners that require threaded components, mating threaded holes, access holds, and counter-bores. Retaining rings function with a minimal amount of surface preparation to either the shaft or the housing.

Retaining Ring Applications
Aircraft
Agricultural machinery
Brake cylinders
Clutches
Computer equipment
Couplings

Drive shafts
Electric motors
Furniture
Gear retainers
Hand/power tools
Hydraulic equipment
Home appliances

Industrial automation
Lawn mowers
Piston pin rings
Pumps
Pressure regulators
Seals

Solenoids
Sports equipment
Torque converters
Transmissions
Toys
Valves

Materials
Carbon Steel (SAE 1060-1090)
Chrome Silicon Alloy Steel
Phosphor Bronze
Stainless Steel

Packaging
Bulk stacked
Plastic shrink wrapped
Rings on wire

Registrations/Certifications
ISO 9001:2008
ISO/TS 16949:2009
ITAR compliant

Finishes
Phosphate coating
Phosphate and oil

Retaining Ring End Configurations

Reverse angle cut ends with slight dub cut
Reverse angle cut ends with
slight dub cut
Retaining Rings - Round wire angle cut ends
Round wire angle cut ends
 
Retaining Ring - Straight cut ends
Straight cut ends
 
Retaining Ring - Custom formed ends
Custom formed ends
 
Retaining Rings - Straight cut ends with OD notches
Retaining Rings - Straight
cut ends with OD notches
Retaining Rings - Rounded ends with ID notches
Rounded ends with
ID notches
Retaining Rings - Angle cut ends
Angle cut ends
 
Retaining Rings - Custom shaped & formed ends with holes
Custom shaped & formed
ends with holes
Retaining Rings - Butterfly cut & straight cut ends
Butterfly cut &
straight cut ends
Retaining Rings - Butterfly cut both ends
Butterfly cut both ends
 
Retaining Rings - Dubb cut both ends
Dubb cut both ends
 
Retaining Rings - Custom shape cut ends
Custom shape cut ends
 

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