CHUCK LUBRICATION

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HI FRIENDS,
I WANT TO KNOW ABOUT CHUCK LUBRICATION OF
CNC M/C. BASICALLY WHAT MEACHNISM IS TO BE
LUBRICATED. AND WHAT KIND OF LUMRICANT MUST BE USED

1/1/079:15 PM

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bruce381Member

most chuck grease are a high moly grease >5% the chuck can be dis assembled to grease or some have a lube fitting with a plug that has to be removed befor greaseing. not a "normal" grease thing don on rebuild of when chuck "jaws" start to stick or they will not tighten.
bruce

1/1/079:30 PM

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greasespecMember

The best I have see is to smear a white paste between the surfaces that tighten. Reason for protecting them is fretting corrosion given a contact metal-to-metal under vibration, and moist environment.

Typical problem in the chuck start with a dark or black discoloration and end up in not tightening since the metal surface corrodes.

1/10/075:20 PM

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