A thread already exists on this topic but my post did not get any response. I thought posting in this forum may get a response as the members here might have tried something similar. Is it a good idea to add a bearing below the bit (in my case, a round over bit) and cut a small grove after leaving space for the bearing and put a C ring in the groove to hold the bearing? It does not impact the grip on the bit as the bit will still have the same length inside the collet. The only question is if a C ring is sufficient to keep the bearing on the bit without slipping out. Also wondering why current bit designs (at least the ones I have seen) use a screw to hold the bearing instead of a C ring - is a screw better than a C ring. It seems to me that a screw can come loose because of vibration but vibration can never get a C ring off. Or, even better, why not use a washer that is heated till the hole expands and put into the groove where it fits snugly once it cools? That will never come off.
Thanks,
Arvind
The old thread:
https://sawmillcreek.org/showthread....arings-to-bits