05-28-2016, 01:38 PM
Belt driven surface grinder spindles are usually capable of achieving better surface finish than direct drive because it isolates motor vibration from the grinding wheel. Mine is a direct drive type and I can't achieve the finishes that others can despite having more wheel choices.
If those bearings are shot, that's the one area on the machine itself where you would be wise to invest in the best quality bearings you can get, and pay close attention to orientation of the races, pre-load, cleanliness and lubrication when you assemble.
If those bearings are shot, that's the one area on the machine itself where you would be wise to invest in the best quality bearings you can get, and pay close attention to orientation of the races, pre-load, cleanliness and lubrication when you assemble.