Is HSS for pivots a good idea?

Discussion in 'Clock Construction' started by dandydude, Oct 31, 2019.

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  1. dandydude

    dandydude Registered User

    Nov 30, 2014
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    Hello everyone,

    I was considering using HSS (cobalt) for palet Arbor pivots to go with jewel plain bearings? Has anyone done this before? Its easy to find because, I can cut it off a drill bit of the Dia I need. Just need to taper the end to a point. Isn't this better than hardening steel?

    Any response appreciated...

    Thanks
    Dandy
     
  2. John MacArthur

    John MacArthur Registered User
    NAWCC Member

    Feb 13, 2007
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    Dandy - I think you'd want to experiment a little. In my experience, the shank end of a drill bit is softer than the cutting end, as anyone who has ever had a bit grab and spin in the chuck knows. You can get drill stock or pin gages which probably are hard throughout the length. These might work for grinding to a point, or even shaping a pivot and polishing with a pivot polisher. Good luck,
    Johnny
     

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