Replacing kvt with washers

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Gadt

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I want to remove the bearings in my zt 0562 and put washers in. Has anybody tried this. I figured a good way would be to put washers in the milled pockets until it is proper height, oiling each one should give a smooth action. Thoughts and suggestions and opinions please. Thanks.
 
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Gadt said:
I want to remove the bearings in my zt 0562 and put washers in. Has anybody tried this. I figured a good way would be to put washers in the killed pockets until it is proper height, oiling each one should give a smooth action. Thoughts and suggestions and opinions please. Thanks.
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You would be stacking an awful lot of washers. I would advise against it.
 
One piece washer would be better in terms of simplicity and maintaining parallelism.

First order should be to measure thickness/OD of existing bearing and the milled bearing housing bore depth/ID. Machine a one piece upside down "T" shaped button washer in accordance to the measured dimensions, small OD end fit into existing milled bore and the wider flange side to provide additional support for the blade tang. Or, staying simple, just flat washers

Much like these oversized I made to replace smaller/softer teflon type came with my XM's, or as an option - yours could have a raised step boss for additional support:

DSCN2336_zpsd5pjcddc.jpg


DSCN2337_zpscn10xihv.jpg


Good luck!
 
Not sure how much real estate the bearing assembly takes up, but if you make a washer that's larger in diameter then the hole the bearings sit in, that will work fine....

You just need to make sure that there is enough room for a larger PB washer.

By larger, I mean in circumference...
 
Although in another language, but it is the inside on a ZT 0562:

https://www.youtube.com/watch?v=auAfr4leOB0

My original suggestion/assessment were based on tried and trued basic Machinist practices. Based on the above video, due to space/design constraint, look like washers simply having larger OD is not practical in the case of your model! But "T" button type, with a marginally larger OD for added support, or for the sake of simplicity, a simple one piece, having the same thickness as the bearing and an OD that can fit into the bore of the milled bearing housing will work.

Video shown, bearing balls are having direct contact, with Ti acting as bearing race - well, in terms of metallurgical relationship, being softer, Ti will always be the sacrificial.

It will be a give and take. Your idea of changing to washer will be more trouble free but probably will not be the same as having bearings.

Trouble is, unless you are capable or having a friend that is. Most Machinist will not turn on their machine for this simple task! So that will leave the option of lucking out from knife maker supplies for the closest with the least tweaking to work!

Based on facts along with imaginations, anything is doable!

Good luck!
 
Honestly I think It can be done but it will be a lot of effort for minimal differences. And thats if you can get the washer spacing perfect. Id probably suggest cutting your losses and selling it to purchase a knife that is closer to your desires.
 
Never say never don't quit. I am trying to do the same with a Benchmade 781 Anthem now. Try looking outside of the knife realm and look at websites that sell to industrial manufacturing customers. For example you can get many different type and size washers from these people
MotionIndustries.com
They may not have the exact size but they may have a washer close enough that all you need to do is sand and remove material until you have the right fit.
 
Sharpcoolman said:
Never say never don't quit. I am trying to do the same with a Benchmade 781 Anthem now. Try looking outside of the knife realm and look at websites that sell to industrial manufacturing customers. For example you can get many different type and size washers from these people
MotionIndustries.com
They may not have the exact size but they may have a washer close enough that all you need to do is sand and remove material until you have the right fit.
Click to expand...

Let me know if you find a solve for the anthem!
 
Westrom said:
Let me know if you find a solve for the anthem!
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I got a washer that is close enough thanks to a lead I got on reddit from a user there. (I forget his user) It is a tt504 thrust bearing you can find it in the above mentioned link now I can sand it down to have the size fit right. But I am leaning on taking it to a machine shop I have in town and have them surface finish it to the exact .048 thickness on both washers. This will be a tight fit kind of like a 940 right out of the box but it will break in and smoothen out real nice.
 
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Sharpcoolman said:
I got a washer that is close enough thanks to a load I got on reddit from a user there. It is a tt504 thrust bearing you can find it in the above mentioned link now I can sand it down to have the size fit right. But I am leaning on taking it to a machine shop I have in town and have them surface finish it to the exact .048 thickness on both washers. This will be a tight fit kind of like a 940 right out of the box but it will break in and smoothen out real nice.
Click to expand...
If you do that I would be willing to send money your way to have a set done for me!
 
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