What Is a Trunnion On a Table Saw? – Complete Explanation

There are different types of table saws and each of them has a different kind of trunnion. Even though there are many kinds of saws, the trunnion is an important part of each saw. This is because it helps the blade rotate. If you have ever used a table saw, you have used the trunnion. A trunnion is the part of the saw that adjusts the height of the blade.

In this blog post, we will take a look at what is a trunnion on a table saw.

What Is A Trunnion On A Table Saw

A trunnion is a type of device that attaches a tool or machine to another object. The trunnion is attached to the sides of the base of the table saw. It allows for adjustments of the blade, like raise, low, and tilt. A trunnion is the metal part that connects the table of the saw to the cabinet. A table saw trunnion usually has a ball bearing in it that the saw blade and fence ride on.

The trunnion is an accessory for table saws, that is used to attach the arbor to the underside of the table. It is the primary adjustment point that aligns the saw blade towards the miter slot on the table of the saw and is also used to adjust the angles of the Blade. The trunnion on a table saw is an essential part of a table saw.

It’s the axle-like mechanism that allows the blade to move up and down. Although it may look complicated, you can easily figure out how it works with a few simple tests. Once you see how the trunnion works, you’ll realize that maintaining your table saw doesn’t take as much effort as you thought it did.

Why You Need A Trunnion On A Table Saw

Problems You Face

You need a trunnion on a table saw if you have one or more of these annoying problems.

  • Your rip cuts may be burnt if the blade is set at 90 degrees.
  • Your wide crosscuts may be out of square.
  • Your boards may pull from the fence.
  • You might have related problems with the blade set at 45 degrees.

Trunnions Are The Solution

A table saw is a type of power tool used to cut wood. In this case, the two trunnions attached to the blade allow it to tilt while cutting. The blades have semicircular raised areas that ride in grooves. These areas prevent the blade from tilting too far. To correct this problem, loosen the bolts holding the brackets, allowing them to move back and forth. This moves the brackets, correcting the problem.

A table saw blade can be perfectly aligned when it’s flat but isn’t when it’s tilted. The vibration and weight of the motor cause the rod-tie rods to shift, causing them to become misaligned. Lifting the saw while using it causes the same thing. Trunnion brackets are attached to the underside of the table saw. Loosening them lets you move the brackets, which align the blade to the miter slot. This method is very easy to use, but it takes time to adjust the bracket position.

How Do You Align Trunnions To The Blade

There are two ways to align trunnions to a blade. One method is to use a trunnion pin. The second method is to use a set screw. The best blade I use is the WEN BL1060.

Trunnion Pin

Trunnion pins are used to attach the trunnion to the blade. A trunnion pin is a small metal rod that goes through the center hole of the trunnion. This allows the trunnion to rotate freely. When using a trunnion pin, make sure that there is no binding or friction in the joint. If there is binding or friction, then the trunnion pin won’t allow the trunnion to move smoothly.

To prevent binding, lubricate the trunnion pin. Lubricating the trunnion pin helps to eliminate friction. Using a trunnion pin is the easiest way to align trunnions. However, it’s not recommended to use trunnion pins for blades that weigh over 100 pounds. For heavier blades, use a set screw instead.

Set Screw

Set screws are used to connect the trunnion to a blade. A set screw is a threaded fastener that connects the trunnion to another part of the blade. Use a set screw only after you’ve aligned the trunnion to its corresponding slot.

Before using a set screw, make sure that the trunnion is properly aligned to the blade. Aligning the trunnion to an incorrect slot could cause damage to the blade. Once the trunnion has been aligned to its corresponding slot, use a set screw to secure the trunnion to it. Make sure that the set screw is tightened until it is snug against the trunnion. This prevents the trunnion from moving laterally.

After tightening the set screw, remove any residual slack in the trunnion. Tightening the set screw too much could cause the trunnion to bind.

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What Is An Arbor On A Table Saw

An arbor is a piece of wood that holds the blade of a table saw in place while cutting. An arbor is basically a spindle that connects your blade to your table saw. The most common reason you’d want one is so that you can switch out blades with ease, which means saving time.

What The Role Of The Trunnion Is In The Saw

A trunnion is a part of the saw that connects the blade to the arbor. There are two types of trunnions used in the saw industry. One type is called a “trunnion pin” and the other is called a “pinless trunnion.”
Both types of trunnions allow the blade to move up and down relative to the arbor. However, there are differences between the two types.
Trunnion pins are usually made out of steel and are attached to the arbor using screws. Pinless trunnions are usually made out of aluminum and are attached to the saw arbor using bolts.

How To Replace A Bearing In A Trunnion

There are two types of bearings used in a trunnion: ball bearings and roller bearings. Ball bearings are used in most applications. They are cheaper than roller bearings, but they do wear out over time. Roller bearings are usually used in higher-end machines where there is less friction.
If you’re replacing a trunnion bearing, you’ll need to remove the shaft first. To remove the shaft, loosen the nut holding the shaft in place and slide the shaft off the trunnion. Next, use a socket wrench to remove the old bearing. Use a new bearing and tighten the nut back down. Replace the shaft and reassemble the trunnion. You’re done!

How Do You Adjust A Table Saw Trunnion

Here is how do you adjust a table saw trunnion:

  • First, loosen the screws holding the trunnion to the baseplate.
  • Then slide the trunnion up and down until it fits snugly against the baseplate.
  • Next, tighten the screws.
  • Finally, test the trunnion to make sure it works properly.

How To Replace A Trunnion On A Table Saw

Here is how to replace a trunnion on a table saw:

  • Step 1: Locate the trunnion and the bolts that hold it in place. Trunnions are generally mounted on the motor end of the saw. It is a cylindrical piece with a shaft that extends vertically through the saw frame.
  • Step 2: Remove the bolts and pull the trunnion away from the machine using a pair of channel locks.
  • Step 3: Install the new trunnion and re-tighten the bolts.
  • Step 4: Adjust the trunnion so that the bolts are fully engaged and that the alignment marks are aligned.
  • Step 5: Replace the saw blade and install the saw on the table so that it is ready for use.