Gears and Shafts | Hydraulic Pumps & Motors For Mobile & Industrial Applications > Permco

Gears and Shafts

Gears/Shafts for Permco pumps and motors are cut in our own plant to extremely close tolerances.

Gear width tolerances are held to 0.0003″ with backlash held to a minimum of 0.003″ to 0.006″. To prevent leakage caused by the common “crowning” effect, Permco shapes gears rather than hobbing and shaving them. This gives a true involute profile for the full length of each gear tooth, assuring maximum volumetric operation, no headaches with hand matched gear sets and longer operating time without rebuilding.


⚠ WARNING: This product can expose you to chemicals including nickel and nickel compounds, lead and lead compounds, which is known to the State of California to cause cancer and lead and lead compounds which is known to the State of California to cause birth defects or other reproductive harm.  For more information, go to



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