Internal Structure of the Schmidt SKM-88 Click Mechanism ?

Signed-In Members Don't See This Ad

magpens

Member
Joined
Feb 2, 2011
Messages
13,319
Location
Coquitlam, BC, Canada
I can see potential for incorporating the Schmidt SKM-88 Click Mechanism into the ballpoint pens that I make.

However, the slightly tapered shape of the outer sleeve is problematic.

Using a metal working lathe, I would like to remove the taper and reduce the diameter by a few thou.
I have tried this on 3 units. . Only 1 of the units remains fully functional after the machining. . The other 2 show no signs of actual damage, but are not reliable.

I am thinking, if I understood how the internal mechanism is constructed, that I might be able to do the machining with better success.

I'd greatly appreciate receiving any advice, please.

By inspecting an intact original unit, I see that there is a very tiny circlip on the small diameter shaft of the unit.
I suppose, by removal of that circlip, that the unit might come apart and reveal its internal construction.
I haven't tried that yet and am loathe to do so because the circlip is extremely tiny and I don't have any tools to remove it.

Thanks for any knowledge, help, or info that you can share.
 
Signed-In Members Don't See This Ad

darrin1200

Member
Joined
Mar 17, 2010
Messages
1,213
Location
Lyn, Ontario, Canada
Internally, there are extremely fine channels and ball bearings.
Some where on here is a discussion about this. It included some photos and disassembly tips.

 
Last edited:

Herman

Member
Joined
Oct 3, 2020
Messages
28
Location
Brazil
I would sugest SKM 192 Push Button. Ready to use, you just need a M4 x 0.35 tap to fix this part.
Regards
 
Top Bottom