Contact or non contact sealed bearings

[stihlsawer]

Contact or non contact sealed bearings on the quill shaft? What is your preference?

[DLB]

I use contact type (2RS). I had to look that up, so I wouldn't say it is a preference. IIRC SS (or their supplier) use shielded (ZZ) on the inner bearing for the current two bearing quill, but when I've rebuilt quills I often find dirt everywhere inside so I use 2RS on the inner as well. It seems like I have seen a 2RZ bearing somewhere, maybe the internal motor bearings on PowerPro, but it isn't common.

- David

[stihlsawer]

Thank you David. Contact makes sense to me with the amount of sawdust generated. I'll take your advice for the inner bearing as well.