My older flat wheel wire brush from Menards was vibrating rather wildly on my 1/2 HP motor. So a few days ago I asked a bunch of questions about wire brushing, hoping to improve my situation.
Here's the outcome. I bought a 8" fine wire bruch from McMaster, item
4840A48. Also bought one extra motor arbor adaptor.After replacing the previous brush and previous adapter with both new brush and a new adapter, the difference is huge. The motor no longer vibrates, the noise is gone, and it is all smooth and quiet.
I believe that 1/2 horsepower is fine for this fine bristle brush, because the manual says do not press too much on it when brushing. If I do not press too hard, then the motor keeps up with speed just fine. This is a 50 year old Peerless motor that cost me just $2 (IIRC) and if I can use it, I will be happy.
What I use this brush for, is I clean various gunky or slightly rusty things.
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