Flange Dynamics & Runout Prevention
Clean flange clamping surfaces ensure that rotational torque transfers evenly to the steel core without wobbling.
Maintenance & Diagnostics
Published: 2026-08-06
Arbor Bushings and Flange Maintenance: Ensuring Zero Wobble on High-Speed Saws
Direct Answer: Ensuring zero blade wobble (radial runout) requires maintaining clean, flat arbor flanges and using heavy-duty copper or steel arbor bushings matched to your saw shaft (e.g., converting 1" arbor cores to 20mm Stihl cut-off saw shafts). Flanges must be identical in diameter, clean of concrete slurry, and tightened to manufacturer torque specs. Worn or cupped flanges cause blade wobble, rapid segment wear, and arbor hole ovaling.
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Frequently Asked Questions
Can you stack multiple arbor bushings together?
No. Never stack loose bushings. Use a single precision-machined bushing that fits flush inside the blade core arbor hole.