Spindle Max RPM Duty Cycle

josephk · Jun 29, 2020

I just came across this: YouTube, I remember being told the machine will run 15K RPM all day and so did other members here think, seems like it will kill the spindle prematurely, the case is probably the same with other MTBs?

Milland · Jun 29, 2020

All mechanical bearing systems have a rated life, which they can exceed or fail before depending on use and luck. Sort of like humans - we can make it to 80+ or kick-off at 40, even if both parties had identical lifestyles.

If you're a prototype shop without pressure for throughput, run the spindle slower, it will likely extend bearing life. If part output is critical to the company, run full-bore and budget for replacement or repaired spindles along the way.

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Spindle Max RPM Duty Cycle

josephk

Aluminum

Milland

Diamond

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