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→Friction pegs: The taper has a purpose. It doesn't last forever. |
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Friction pegs are most often used on [[violin family]] instruments (not on the [[double bass]], which typically uses geared tuning machines), as well as being used on older instruments, such as the Bulgarian [[gadulka]] and the [[hurdy gurdy]], as well as on [[flamenco guitar]]s.
A properly working peg will turn easily and hold reliably, that is, it will neither stick nor slip. Modern pegs for [[violin family]] instruments have conical shafts, turned to a 30:1 taper, changing in diameter by 1 mm over a distance of 30 mm. The taper allows the peg to turn more easily when pulled out slightly, and to hold firmly when pushed in while being turned. Since the typical wear pattern on a peg shaft interferes with this action, pegs occasionally require refitting, a specialized job which amounts to reshaping both pegs and holes to a smooth circular conical taper.
==Geared pegs==
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