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SAW BLADE MOUNTING

For maximum efficiency, the blades must run as true as possible. This can be achieved by addressing the following items:

• Ensure that bearings and spindles are in good condition.
• Determine blade flatness, radial and lateral run out.
• Ensure that all mounting surfaces on the sawing machine hubs and flanges are clean and free from dirt, nicks, burrs or any mechanical obstructions.
• Confirm the drive and clamping flanges are of a recessed or bellville design (which means it is hollow ground) to exert maximum pressure on the outside diameter against the saw blade when mounted. This also makes it easier to keep the locating surfaces clean.
• Remove any play between drive pins and holes by pressing against the face of the saw blade before final clamping. This is a good saw mounting practice that prevents pin shear, pin hole deformation and tooth breakage.
• Determine that the blade arbor is exactly 90 degrees to the plane of the saw machine and saw blade travel.
• It should be noted that hydraulic nuts provide greater and more uniform pressure. This aids in dampening vibration of the assembly.

Depending on the maximum size workpiece to be sawed, the larger the flanges the truer the saw blade will run.

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