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Grinding Wheel Removal: Carbide Tool Grinder

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  • Grinding Wheel Removal: Carbide Tool Grinder

    Can someone confirm that it should not necessary to remove the
    arbor (spindle) nut to remove/replace grinding wheels on a 6" Carbide
    Tool Grinder such as the Harbor Freight #46727-0VGA.

    There is no guidance offered in the HF manual about wheel R&R. However
    a manual for someone else's product states never to loosen or remove
    the arbor nut on their machine.

    An OEM SiC wheel on the HF machine remains tight to the shaft after
    removal of four hex socket head shoulder bolts. Brief attempts to
    loosen with gentle levering with wooden wedges between the housing
    and the backing plate of the wheel were unsuccessful - force here
    seems likely to ruin the SiC wheel.

    There are four tapped holes in the b-plate on the same circumference
    as the mounting holes for the shoulder bolts. Could these be intended
    as locations for 'pusher bolts' to bear against the motor housing and
    extract the wheel from the arbor adapter?

    .

  • #2
    Originally posted by EddyCurr
    Can someone confirm that it should not necessary to remove the
    arbor (spindle) nut to remove/replace grinding wheels on a 6" Carbide
    Tool Grinder such as the Harbor Freight #46727-0VGA..
    Confirmed. Center hole in HF SiC wheel is 1.26" diameter, should clear spindle nut.

    It's been a while since I changed wheels on the unit, but I think the spindle nut holds the backing plate, while the 4 screws hold the wheel to the backing plate.

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    • #3
      Thanks. I already had examined the arbor nuts to determine handedness
      and had made an initial unsuccessful attempt to loosen them. When they
      didn't break free with a moderate effort, discretion and research seemed
      more appropriate than further force.

      While few have had kind words for the OEM wheels on these grinders,
      I would prefer to remove them without breakage - point of honour,
      if nothing else.

      .

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