Leading experts and valued customers in both the industry and in the field all agree — Lone Star Artificial Lift creates the most premier quality pumping units and parts possible.

Comparison of DCA and Involute Gears
Comparison of Double – Circular – Arc – Gear
Double Circular Arc Helical Gears-Main Features
Gear Reducer Design Engineering Book
Introduction for Development, Application and Performance of Double Circular Arc Gear
Qualification of DCA Gear Reducer Pumping Unit
Faydor Litvan DCA paper 1997 No. 19970025519.pdf