This is the one I used. There are different diameter versions so measure you stuff first or order a a couple.
https://www.avidrc.com/product/1/bearings/191/5x11x4-Thrust-Bearing-F5-11M-bearings.html?cc=1
PM me if you need a link to one of the old threads we had.
https://www.avidrc.com/product/1/bearings/191/5x11x4-Thrust-Bearing-F5-11M-bearings.html?cc=1
PM me if you need a link to one of the old threads we had.