Spline Rings & Plugs
Western Pegasus offers a full line of spline ring and plug gauges. Spline ring and plug gauges provide the most basic and simple inspection of spline components.
Go Composite Ring Gauges provide a basic check of the maximum effective tooth thickness of an external spline component.
Go Composite Plug Gauges provide a basic check of the minimum effective space width of an internal spline component.
NoGo Sector Ring Gauges provide a basic check of the minimum actual tooth thickness of an external spline component.
NoGo Sector Plug Gauges provide a basic check of the maximum actual space width of an internal spline component.
NoGo Composite Ring Gauges provide a basic check of the minimum effective tooth thickness of an external spline component.
NoGo Composite Plug Gauges provide a basic check of the maximum effective space width of an internal spline component.
Spline rings and plug gauges can also be designed and built for the combined inspection of major or minor diameter fit components. Other elements in the design of a gauge can include locating features such as journal diameters, ground bores, flats and holes in relation to a tooth or space to aid alignment.


“The true measure of a company is not how they handle things when they go well; it is how it reacts when a problem arises. In an industry with last minute and frequent changes, it is nice to know that Western Pegasus has the skill, experience, and commitment to assist us on those potentially difficult situations.”
Dave Haas
Dana Corporation
Marion, IN