Internet Horology Club 185
Curb pins

This topic can be found at:
https://ihc185.infopop.cc/eve/forums/a/tpc/f/3426047761/m/3431051732

March 05, 2007, 05:35
Aaron Bereiter
Curb pins
Hello,

How tight or loose should the curb pins on the regulator be over the hairspring? I have a watch that dosent seem to respond to the regulator and I and see that the curb pins are about twice as wide as the haipspring is thick and the spring moving back and forth between them. I know they shouldnt snag on the hairspring but.......?
Any input would be appriciated.


Aaron
March 05, 2007, 14:48
Jim Cope
...Aaron, it is my understanding that the distance between the regulator pins shud be twice the thickness of the hairspring for a FLAT 'spring and on a Brequet 'spring little or very close tolerance between the spring and pins is recommended...
April 08, 2007, 13:03
Aaron Bereiter
Sorry, I didnt even make it back here to read your responce. I figured that they needed to be somewhat snug like you stated. I have made the adjustment after posting the request for information and it worked.
Thanks again. Wink


Aaron