RC10Talk - The Net's Largest Vintage R/C Community

Any tips for removing these blind bearings from a SST gearbox? The smaller size is 5x10 and the larger size is 8x14.

Maybe put a tiny L bend in a real tiny flat head screwdriver?? Hard to tell if there is any chance it could fit in there to pry it out without damaging anything.

I would insert the shaft that goes in it, or one of similar diameter, and rock the shaft left/right forward/back to try and walk the small bearing out. I don't know how brittle the gear case is so don't get too extreme with the side to side shaft rocking.

For the larger bearing, I would flip the case over, use a small screwdriver to catch the edge of the bearing, and tap it in several locations to push it out.

Dental Pick

Or turn it over and...



...smack the case a few times.

If all else fails, just grab the ol' persuader.

I do what frankentruck recommend, just a little wiggle and they will usually pop right out.

If you are feeling adventurous you could do what we do for pilot bearings on a transmission, pack the center hole of the bearing full of grease and insert a 5mm shaft, the grease will hydraulically force the bearing out. It's messy but it works.

GoMachV wrote: ↑Thu May 15, 2025 9:42 am If you are feeling adventurous you could do what we do for pilot bearings on a transmission, pack the center hole of the bearing full of grease and insert a 5mm shaft, the grease will hydraulically force the bearing out.

Or go full Roadkill and use Wonder Bread instead of grease.

Dangeruss wrote: ↑Thu May 15, 2025 10:44 am

GoMachV wrote: ↑Thu May 15, 2025 9:42 am If you are feeling adventurous you could do what we do for pilot bearings on a transmission, pack the center hole of the bearing full of grease and insert a 5mm shaft, the grease will hydraulically force the bearing out.

Or go full Roadkill and use Wonder Bread instead of grease.

Lots of results about bread when you Google this issue haha.

The non-fully blind bearing gave me the most trouble. I think dirt got in and jammed it tighter.

Here is what I was able to make work: