Hole solution

A standard off-the-shelf Dowel Bushing from Spirol Industries has been specified to replace two solid ground wall dowels used to align the two side covers of the body of an oil pump assembly. The solution has reduced the cost per dowel by almost 50% and provided savings in overall manufacturing costs.

In the original design, use of a ground dowel required an accurate hole that had to be reamed to the correct dimension. Using a Spirol Dowel Bushing, the customer no longer needs a tight hole tolerance as the dowel bushing acts as a spring and will conform to the hole size.

The outside diameter of the bushing will take the shape of the hole so long as 60% of the length of the dowel is inserted into the main component.