Is it possible to use duplex worm gear pair at zero backlash?
– Basically, it is not possible. There are possibilities that the gear pair does not turn well. It is possible that backlash change at certain point during a turn due to runout error, which causes a jam. Backlash is necessary for smooth operation of the gears. Too small amount of backlash will create the problems:Abnormal wear of the gear due to a lack of space for lubrication.Deformation of the gear due to excessive heat and a consequent jam of the gear due to zero-backlash condition.
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