Linear rod pump (LRP) of SRP is a rack-and-pinion drive which ensures reciprocating movement of downhole pump in a well by rotating of induction motor back and forth. The drive consists of mounting base, electric engine, gear box, gear, pillar (body), removable cover, rod clamp and control box. Linear drives manufactured by ELKAM have stroke length up to 1.6 meters, loading capacity 8 tons and explosion-proof design.