Bally score motor and trip relay shaft sleeve.
Reference:
S-231-760 sleeve 25/32 inch long
S-231-761 sleeve 1-13/64 inch long
Errata Note:
Typo in Bally 1971 Parts Catalog lists these sleeves as S-731-760 and S-761-760.
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Reset cam nylon

Reset cam nylon

Reset cam nylon

Motor - Bally trip relay

Score motor sleeve Bally 25/32 inch