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Alignment Dowels / Bushings

Precision Alignment Dowels

Direct Replacements for ISO 8734 Dowel Pins

SPIROL’s GD100 Ground Hollow Dowels are designed to be direct replacements for Ground Solid Dowels manufactured per ISO 8734 when used in alignment applications.  This innovative product is manufactured from strip steel, and then OD ground to achieve extremely tight diameter tolerances that enable critical alignment up to 20µm.

The main advantage of the GD100 Ground Hollow Dowel is its ability to achieve the same alignment as the Ground Solid Dowel with a significant reduction in cost due to its hollow construction.  In most scenarios, the Ground Hollow Dowel is approximately 50% lighter and at least 30% less expensive than the solid equivalent.

If installation equipment is required, SPIROL also offers a standard comprehensive line of Installation Equipment from manual to fully automatic modules, with or without out fixturing, to support your assembly requirements.

Application Engineering Assistance: If you would like assistance in selecting the proper Alignment Dowel for your assembly, please Request Engineering Support!  We are here to help!


Dowel Bushings

SPIROL Series GD100 Ground Hollow Dowels provide precision alignment at a fraction of the cost of Solid Ground Dowels of the same size. GD100 Ground Hollow Dowels are manufactured from low carbon steel. When required, Ground Hollow Dowels can be case hardened for wear resistance or manufactured from heat treated, high carbon steel for improved shear strength. SPIROL's precision line of GD100 Ground Hollow Dowels is offered in five standard diameters: Ø6, Ø8, Ø10, Ø12 and Ø16mm. Depending on the application’s requirements, specials can be developed and manufactured with minimal investment.

Additional Alignment Dowels / Bushings Types

Customizable Solutions

If you are unable to find the Alignment Dowel in the diameter, length, material, finish or quantity that you require within our standard offering, or if you are unsure what Alignment Dowel is most appropriate for your plastic assembly, Request Engineering Support and we will help you determine the most cost-effective solution for your application.

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Your Total Assembly Solution

Installation Technology for Dowels and Bushings

In addition to a comprehensive line of engineered components used for joining and assembly, SPIROL also offers a full range of installation equipment designed to facilitate cost-effective and high quality assembly of your products. Our installation solutions range from manual machines to fully automatic work cells with statistical process control and error-proofing options. We are the only company of our kind that offers the total integrated solution.

Explore Installation Equipment

Application Success Stories

Local Design, Global Supply.

SPIROL has Application Engineers throughout the world to assist you in your designs, supported by state-of-the-art manufacturing centers and worldwide stocking facilities to simplify the logistics of delivering your product.

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Have a Question? We're Here to Help!

Have a manufacturing issue you can't solve? Our engineering experts love a challenge. Recommending efficient solutions for your application requirements is what we do best. Give us a call or fill out the form below to connect with us!

+1 519 974 3334