Table Saw Trunnion Shims

May 30, 2018

The advent of modern technology has revolutionized carpentry and woodworking. It’s now easier than ever to make precise cuts in wood with a variety of saws, routers, and other tools. But even with the latest technology, there is still a need for precision tuning and adjustment. This is where trunnion shims come into play.

A trunnion shim is a thin piece of metal or plastic used to adjust the alignment of a table saw trunnion assembly. A trunnion is the mechanism that allows the blade of the saw to be adjusted up and down. It is made up of two parts: the upper and lower trunnions. The upper trunnion connects the motor to the blade, while the lower trunnion attaches the blade to the table. The shim is inserted between the upper and lower trunnions to adjust the alignment of the blade and ensure it is perfectly level.

But why is it so important to have a perfectly level blade? Simply put, a perfectly level blade ensures accurate cuts. If the blade is not properly aligned, the cuts will be off and the finished product may not be satisfactory. If you’re working on a project with tight tolerances, an unlevel blade can mean the difference between success and failure. That’s why having the right trunnion shim is so important.

Trunnion shims are available in a variety of sizes and thicknesses to accommodate different table saws. The most common sizes are 1/4”, 1/2”, and 3/4”. The thickness of the shim should match the thickness of the blade, as this ensures the blade remains level when the saw is in use. It’s important to choose the right size shim to avoid problems with accuracy and precision.

When installing a trunnion shim, it’s important to do so correctly. You should remove the old shim, check the alignment of the blade, and then install the new shim. Make sure the shim is properly seated and that there are no gaps or spaces between the shim and the trunnion. Once the shim is in place, tighten the screws that hold the shim in place.

In addition to ensuring accurate cuts, trunnion shims also help prevent wear and tear on the saw blade. Since the blade is properly aligned, it will not rub against the trunnion assembly, which can cause damage over time. This prolongs the life of the blade and ensures that it will last as long as possible.

Installing trunnion shims can seem like a daunting task, but the process is actually quite simple. With the right knowledge and tools, you can easily adjust the alignment of your saw blade and ensure accurate cuts. So, if you’re looking for a way to improve the accuracy of your cuts, consider investing in some trunnion shims.

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