Collars

Precision Machined Collars

Pattern Fasteners manufactures custom collars and precision-machined collar components for engineering, machinery and mechanical assembly applications.

Collars are commonly used to locate, retain, support or position components on shafts, fasteners and other cylindrical parts. Depending on the design, they can also act as spacers, stops, bearing faces or alignment features within an assembly.

We manufacture collars to customer drawings, samples and individual specifications, including non-standard diameters, bores, widths, threads, grooves and other machined features.

Custom & Bespoke Collars

Where a standard collar is unavailable or unsuitable, Pattern Fasteners can manufacture components specifically for the application.

Custom collar features can include:

• Non-standard outside diameters

• Precision internal bores

• Controlled widths

• Stepped diameters

• Shoulders

• Flanges

• Internal threads

• External threads

• Grooves and undercuts

• Cross holes

• Flats

• Chamfers

• Radiused edges

• Special end forms

Collars can be produced as simple cylindrical parts or as more complex precision-machined components incorporating several functional features.

What Are Collars Used For?

Collars are used across a wide range of industrial and engineering assemblies where accurate location or retention is required.

Typical applications include:

• Shafts and axles

• Machinery and production equipment

• Bearings and bushes

• Pulleys and gears

• Jigs and fixtures

• Automotive assemblies

• Rotating equipment

• Specialist engineering systems

Depending on the application, a collar may be used to prevent movement, maintain spacing, provide a stop position or locate another component accurately.

Shaft Collars

Shaft collars are fitted around a shaft to provide a locating or retaining function.

They can be used to position bearings, pulleys, gears and other mechanical components, or to act as a mechanical stop.

Pattern Fasteners can manufacture shaft collars with custom bores, widths, outside diameters and additional machined features to suit the assembly.

Spacer & Locating Collars

Collars can also be used as precision spacers or locating components.

In these applications, overall width and bore diameter may be especially important where the collar needs to maintain a fixed distance or align adjoining parts accurately.

Shoulders, steps and flanges can be incorporated where more positive location is required.

Threaded Collars

Custom collars can incorporate internal or external threads where the component needs to combine location with a fastening function.

Options can include:

• Internal threads

• External threads

• Metric and imperial thread forms

• Different thread sizes

• Special thread pitches

This can help reduce the number of separate components required within an assembly.

Collar Materials

Pattern Fasteners can manufacture collars from a wide range of engineering materials, including:

• Mild and carbon steels

• Alloy steels

• Stainless steels

• Aluminium

• Brass

• Bronze

• Copper and copper alloys

• Nickel alloys

• Specialist engineering materials

Material selection will depend on factors such as strength, wear resistance, corrosion resistance, weight and operating environment.

Stainless Steel Collars

Stainless steel collars are suitable for applications where corrosion resistance and long-term durability are important.

They can be manufactured in a range of stainless steel grades to suit industrial, outdoor and specialist engineering environments.

Aluminium Collars

Aluminium collars provide a lightweight alternative to steel and can be suitable where reducing component mass is important.

They can also offer good machinability and corrosion resistance depending on the grade selected.

Collars Made to Drawing

Many collar requirements are application-specific, particularly where the bore, width or outside diameter needs to be closely controlled.

Pattern Fasteners can manufacture directly from your engineering drawing, physical sample or dimensional specification.

This is particularly useful for:

• Replacement components

• Obsolete machinery

• Prototype assemblies

• Bespoke equipment

• Production tooling

• Specialist mechanical systems

Precision & Tolerances

Where a collar performs a locating or retention function, dimensional accuracy can be critical.

Bore diameter, outside diameter, concentricity, width, shoulder positions and other features can all be manufactured to suit customer-defined tolerances.

Specific surface finishes can also be reviewed as part of the quotation process.

UK Manufacturer of Custom Collars

Pattern Fasteners manufactures special fasteners and precision-engineered components in the West Midlands.

Whether you require a simple shaft collar or a more complex stepped, threaded or flanged component, we can manufacture to your drawing or specification.

Need a Custom Collar?

Send us your drawing, sample or specification and our team can review the material, dimensions, tolerances and manufacturing requirements for your component.