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Change gears for a newbie on a 7x10 HF lathe, metal or plastic?

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Cavediver

H-M Supporter - Premium Member
H-M Supporter-Premium Member
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Jan 9, 2016
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#1
The time has finally come to start messing around with threading. I have a used lathe that arrived without the change gears, so I need to buy some.

Should I buy metal change gears or plastic gears?

I would buy the plastic, but LMS is out of stock on the full set. I'm a little concerned about using metal since the plastic gears should provide a failure point if / when I crash the carriage.


If plastic is the way to go, does anyone have a US source other than LMS? I'd like to buy from them, but their estimated availability date for the full set is unknown :(
 

Cavediver

H-M Supporter - Premium Member
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Jan 9, 2016
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#4

old toolmaker

Active Member
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May 15, 2016
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#5
Concerning your choice of plastic vs metal I would strongly recommend the plastic gears. Plastic gears run quieter. Plastic gears need no lubrication which is a plus as lubrication such as oil or grease attracts and holds chips and dirt (this is an important point. Well adjusted plastic gears will last indefinitely I have not had any issues with them in over 6 years of frequent use.

Dick
 
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