OMP series motor is a small volume,spool valve type gerotor motor. Advanced design of spool and gerotor,which has small size and compact structure. Credible design of shaft seal,which can bear high pressure and be used in paraller orin series. Direction of shaft rotation and speed can be controlled easily and smoothly. Best combination of efficiency and economy in medium duty ap... https://www.rectehydraulic.com/bmp-omp-jh-bm1-series-orbital-hydraulic-motor-omp-100-hydraulic-motor-product/