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Hit 500 hours of spindle runtime on my old Haas last week and honestly I didn't think it would still hold tolerance that tight.
Pulled a 0.0005" tolerance part after that milestone and it came out dead nuts, has anyone else seen their machine stay this consistent past the 500 hour mark?
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sethm581d ago
025" bearings were still under 50F temp rise when I pulled the part.
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kelly_rivera1d ago
50 degrees is still too hot if you're aiming for any kind of precision work. Those bearings might be okay for a roughing pass, but if you're holding tenths, you're asking for trouble.
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