Spacer Collars

Precision Machined Spacer Collars

Pattern Fasteners manufactures custom spacer collars for engineering, machinery and mechanical assembly applications.

Spacer collars are compact cylindrical components used to maintain a set distance between parts, position components along a shaft or fastener, provide a bearing face, or control movement within an assembly.

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

Custom & Bespoke Spacer Collars

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

Custom features can include:

• Non-standard outside diameters

• Precision bore diameters

• Controlled overall lengths

• Stepped diameters

• Shoulders

• Flanges

• Counterbores

• Internal threads

• External threads

• Grooves and undercuts

• Cross holes

• Flats

• Chamfers and radiused edges

• Special end profiles

Spacer collars can be produced as simple cylindrical parts or as more complex precision-machined components.

What Are Spacer Collars Used For?

Spacer collars are used in a wide variety of mechanical assemblies where accurate spacing or positioning is required.

Typical applications include:

• Shafts and axles

• Bolted assemblies

• Machinery and equipment

• Jigs and fixtures

• Automotive components

• Production tooling

• Rotating assemblies

• Fabricated equipment

• Precision engineering applications

Depending on the design, a spacer collar may act as a distance piece, locating feature, bearing surface or mechanical stop.

Shaft Spacer Collars

Spacer collars are often used on shafts to control the position of bearings, gears, pulleys, bushes or other rotating components.

The internal bore can be manufactured to suit the shaft diameter, while the outside diameter and overall length can be controlled to provide the required spacing and support.

Where tighter location is required, the collar can incorporate stepped bores, shoulders, grooves or other features.

Spacer Collars for Fasteners

Spacer collars can also be fitted around bolts, studs or screws to create a fixed distance between components.

This can be useful where:

• A controlled gap is required

• Components must be aligned accurately

• A fastener needs additional support

• Clamping loads need to be distributed

• A simple washer or tubular spacer is unsuitable

The bore and overall length can be manufactured to suit the fastener and assembly.

Stepped & Shouldered Spacer Collars

Where a component needs to locate positively within an assembly, a spacer collar can be manufactured with stepped or shouldered diameters.

These features can help:

• Control insertion depth

• Improve alignment

• Locate the collar accurately

• Interface with different bore diameters

• Combine spacing and locating functions in one component

Spacer Collar Materials

Pattern Fasteners can manufacture spacer 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, corrosion resistance, weight, wear, operating temperature and compatibility with adjoining components.

Stainless Steel Spacer Collars

Stainless steel spacer collars are suitable for applications where corrosion resistance and durability are important.

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

Aluminium Spacer Collars

Aluminium spacer collars offer a lightweight alternative to steel and can be suitable where low mass and corrosion resistance are important.

They can also be anodised or finished where required, depending on the alloy and application.

Spacer Collars Made to Drawing

Many spacer collar requirements are application-specific, particularly where bore diameter, outside diameter and overall length must 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

• Specialist equipment

• Bespoke engineering projects

• Production components

Precision & Tolerances

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

Bore diameter, outside diameter, concentricity, overall length, shoulder dimensions and other features can be produced to suit customer-defined tolerances.

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

UK Manufacturer of Custom Spacer Collars

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

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

Need a Custom Spacer Collar?

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