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Posted by: snapper

10/04/2004, 01:35:24

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hi everyone,

would you please help me how to calculate back lash for spur and helical gear. And is there any connection between speed and the value of gear back lash.

Regards,
Daud







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Re: gear backlash
Re: gear -- snapper Post Reply Top of thread Forum
Posted by: mikebull

10/05/2004, 07:43:11

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Backlash is to allow the teeth to pass without foul due to temperature expansion and manufacturing errors between teeth. The more accurate the teeth, the less BL is needed. There are rules of thumb e.g (.03 x Mn)+.05mm. The higher the speed then the less backlash the better, but you also need better accuracy with speed.

Look in a few textbooks to see the offerings

see ( select "email author" for web address of site) some gear calcs






Modified by Administrator at Tue, Oct 05, 2004, 08:48:07

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