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Author Topic: Backlash in planetary gearboxes  (Read 18750 times)

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Re: Backlash in planetary gearboxes
« Reply #10 on: February 26, 2009, 08:03:58 AM »
Nice write up Fernando...thanks.
But as far as Mach and a machine tool is concerned, any backlash compensation applied would be in reference to the input of a planetary reducer.
For instance, if the reducer was 60:1, and the output backlash was 1 arc min., then the input backlash would be 1 arc degree which is what would be used to configure the compensation.
Like your PDF said, Industry standard for servo heads is to measure at the output so you would need to do the math or better yet, set it up at the machine.
Thanks again for the tutorial,
RC
Re: Backlash in planetary gearboxes
« Reply #11 on: February 26, 2009, 10:41:54 AM »
Well yea... for compensation in mach you would have to translate it to the input.

But actually i was looking for that info for gearbox selection :)

Best regards
Fernando

Offline kf2qd

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Re: Backlash in planetary gearboxes
« Reply #12 on: May 27, 2010, 03:01:04 PM »
Backlash is still calculated in real world units. It does not matter where it occurs as it still looks like it occurs at the moving stage. How many steps per inch/mm/furlong, how much backlash in inches/mms/furlongs

Offline RICH

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Re: Backlash in planetary gearboxes
« Reply #13 on: May 27, 2010, 07:15:53 PM »
Interesting write up. Attached is a conversion table i keep around for reference. If you are checking the backlash on a rotary and have a dial indicator the conversions come in handy.

RICH