How to Track a Band Saw Blade on the Wheels
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Contents
What blade tracking means
Tracking is the blade’s position on the band saw wheels. Correct tracking keeps the blade in a stable position as the wheels turn; it is not the same as setting the guide blocks or thrust bearings. Those parts support the blade near the cut, but they cannot fix a blade that is wandering on a wheel.
Wheel shape and blade design matter. Many saws have crowned tires, and many common blades are intended to run with the teeth just beyond the front edge of the tire. Other saws or blade designs call for the blade to sit differently. Check the saw manual first. If it specifies a tracking position, follow it rather than assuming every blade belongs in the center.
Prepare the saw safely
Unplug the saw before opening the wheel covers or reaching near the blade. Wear eye protection when testing it, keep hands clear of the wheels, and close the covers before running the saw. Never try to adjust tracking while the machine is powered.
Check that the blade is the right length and width for the saw, installed with its teeth pointing down toward the table, and tensioned according to the manual. A blade installed backward, poorly tensioned, kinked, or damaged will not track reliably. Inspect the tires for cracks, missing chunks, glue, and sawdust buildup. Clean debris off with the machine unplugged; replace badly damaged tires rather than trying to compensate with the tracking knob.
If you need a replacement, match the blade length and width to the saw and choose a tooth style suited to the work. A general-purpose blade is adequate for occasional resawing and curves within its capacity; a narrower blade is better for tighter curves, while a wider blade is generally more stable for straight cuts. Compare woodworking band saw blades by the saw’s specifications, not just by price.
Track the blade in small adjustments
With the saw unplugged, open the wheel covers and turn the upper wheel by hand through several full revolutions. Watch where the blade rides on the tire. Hand-turning shows whether the blade settles into a repeatable position without the risk of starting the saw with the covers open.
Use the tracking adjustment—usually a knob or handwheel at the back of the upper wheel assembly—to tilt the upper wheel. Make a small change, then turn the wheel by hand again. Which direction moves the blade forward or backward varies by saw, so observe the result rather than relying on a guessed clockwise rule. Aim for the position specified in the manual. On many crowned-tire saws, that means the blade’s body rides on the crown and the teeth sit just beyond the tire’s front edge. Do not let the teeth grind into a rubber or urethane tire.
Repeat in small increments until the blade stays in the intended position through several turns. If a small adjustment makes it move sharply or it drifts as the wheel turns, check tension, tire condition, blade condition, and wheel alignment before turning the tracking knob farther. Tracking is a setup adjustment, not a cure for a bent blade or a damaged tire.
When the position looks consistent, close the covers and plug in the saw. Stand clear of the blade’s path and start the machine briefly. Switch it off and unplug it before reopening the covers to inspect. If the blade shifted during the powered test, make another small adjustment with the machine unplugged and repeat the test.
Tracking versus guide adjustment
Once tracking is stable, set the guides and thrust bearing according to the manual. Guides should support the blade close to the work without pinching it; the thrust bearing should sit just behind the blade and contact it under cutting pressure, not constantly shove it forward. These clearances differ by saw and blade, so use the manufacturer’s instructions rather than copying a single measurement.
| Symptom | Likely area to check | What to do |
|---|---|---|
| Blade walks toward a tire edge while hand-turning | Tracking, tension, blade condition, or tire | Adjust tracking slightly; inspect the blade and tire if it will not settle. |
| Blade tracks steadily but deflects in the cut | Blade choice, tension, feed rate, or guides | Check the manual’s tension guidance and use a suitable blade; do not force the cut. |
| Blade rubs the tire with its teeth | Tracking position or blade compatibility | Stop and correct the position; confirm that the blade is suitable for the saw. |
| Blade moves side to side once per wheel turn | Blade damage, debris, tire damage, or wheel issue | Clean and inspect with the saw unplugged; replace damaged parts or seek service. |
Common tracking problems
A blade that will not stay put may be too loose, but adding tension blindly can overload the saw. Use the saw’s tension scale as a starting point, recognizing that built-in scales are not always precise. If the blade keeps drifting, check that it is fully seated, the tires are clean and sound, and the blade is not twisted or damaged. A blade that has taken a permanent bend should be replaced.
Do not use tracking to hide poor cutting performance. A blade can track perfectly and still cut crooked because it is dull, too narrow for the cut, under-tensioned, or being fed too fast. Likewise, repeatedly moving the guides to correct a blade that runs off the wheel treats the symptom, not the cause.
If the saw has no usable tension scale, a band saw blade tension gauge can help compare tension across setups, but it is not essential for occasional hobby use. Following the manual, making careful adjustments, and checking the cut may be enough. A gauge is most useful when you change blade widths often or need repeatable settings.
When to stop and investigate
Stop if the blade scrapes a wheel, comes off the tire, makes an unusual knocking sound, or shifts dramatically during the powered test. Unplug the saw before inspection. If the blade remains unstable after checking tension, blade condition, tire condition, and the manual’s setup procedure, the wheel alignment or tracking mechanism may need service. Continuing to run it risks damaging the blade, tires, or saw.
After tracking and guide setup, make a test cut in scrap at a moderate feed rate. A stable blade should remain on its intended path without rubbing the tire or needing excessive force through the cut. Recheck tracking after changing blade width or replacing tires, since either can alter how the blade sits on the wheels.
