Worm gears – permissible bending stress

Efficiency η is the ratio between the work out to work in. For the usual case of the worm serving as an input member, is reported on the worm gear efficiency is slightly lower due to friction losses in the bearings and shaft seals, and because of “churning” the lubricating oil.


The relationship between worm tangential velocity, tangential velocity gear, and sliding velocity,


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