soc_monki wrote: ↑Wed Nov 11, 2020 4:33 am
Do you have a tutorial on how to swap the bearings? Specs on the washers and source? I am interested!
I've done this on many knives, not just Spydercos. Its pretty easy.
Now, it seems to me that many people think you need some sort of super thick washer to fill the bearing pocket. Not true. Just get a bigger diameter PB washer to sit
over the pocket.
First step, before disassembly, is to measure between the blade and frame/liner with a feeler gauge. This is how thick your washers should be. Plus or minus one or two thousanths should be good enough.
Next, disassemble the knife and figure the ID and OD needed. IIRC, 1/2" OD is usually the ticket. A bit bigger than the bearing pocket so that it sits on top, rather than falling down into it. If it interests you, even bigger diameters can work ocassionally too for added surface area to distribute forces. Just make sure it wont interfere with the lock. Sometimes the stop pin hits even the smaller size ones though, like on the Southard. Then you gotta file a notch in the washer to mate with the pin. Now the washer will be captured and wont spin. I actually prefer this.
Spyderco often uses an odd ID and can be hard to find, so I usually have to get washers with smaller holes and ream them to fit.
I like to flatten and lightly polish washers after modifying them.
KnifeKits.com and USAknifeMaker sell an assortment of PB washers.
This mod works well on knives with pockets milled into the liner/frame and smooth blade tangs. I've tried it on designs with pockets milled into the blade and could not get a smooth action without lots of blade play.
Only negative to this is that sometimes blade centering will be just a teeny bit off on some knives because the pivot cannot be as tight anymore. Ball bearing knives with snug pivots are always dead center.
Notice that I did not include much for specific measurements or replacement parts. If you do not have the tools and knowhow to come up with these numbers, this mod is probably not for you.