Correct o-ring size for HP-65 and HP-67 card readers

[born2laser]

(06-03-2024 04:24 PM)albertofenini Wrote:  

(05-29-2024 06:50 PM)born2laser Wrote:  I got it from McMaster-Carr, link to the item in question below

https://www.mcmaster.com/catalog/130/161/9627T13

Thank you very much for your reply,
may I ask you why not using the 9627T14 ?
It looks more close to the o-ring specs

Let me know and thank agains !

That is indeed true, I had not noticed. I vaguely remember that somebody in the forum gave the dimensions of tubing they had used and I based my choice on that, it worked for me so I did not question it. If I had noticed at the time I would probably have ordered both!
One thing to note is that the tubing fits snuggly on the motor axis, and the ID of the o-ring is smaller, so it probably stretches more and the resulting OD is about the same (I am guessing wildly here).

Juan