I got a new bench grinder today (have not owned one before) and put it together. The grinder was shipped with the wheels attached but I took them off and did a ring test on both wheels on 8 points and they sounded OK based on what I understand they should sound like. When I spun it up I noticed the 80 grit wheel has more side-to-side "wobble" to it compared to the other wheel, so I took it apart again and started looking at it closely. I noticed it is crumbling around the arbor hole. Like little chunks came out just from poking at it with my finger.
So I guess my questions are:
Pictures of the arbor hole:
So I guess my questions are:
- I should toss this wheel right?
- Is this a symptom of anything I might be doing wrong? Overtightening? The grinder was shipped with the wheels attached...
- Does anyone have a recommendation for what wheel to get instead (grit + type)? Arbor is 5/8" if that matters.
Pictures of the arbor hole:
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