Posted by BillS on August 09, 2018 at 09:49:45:
In Reply to: Replacing Helical gears with spur gears posted by Tlueken on July 02, 2018 at 19:40:15:
Unless they have a compelling reason to replace helical with spur, I would suggest not doing that. First of all, it will make the reducer noisier. Also, the pitch diameters of individual gears would need to be reduced (perhaps a small amount) to keep a similar backlash. In other words, you would be changing the profiles of gears which could violate the original design criteria (noise, tooth strength, etc.)