... versionsNMRV - fitted for motor flanged coupling,NRV - with input shaft,NMRV-E motor flanged coupling with worm extension shaft,NRV-E ... with double extension worm shaft,Available combination NMRV+NMRV, NMRV+NRV, PC+NMRV,NMRV+UD(L) Single unit reduction ratio 1:5 7 ... :2008Basic Information,Package,1 pc / carton,several cartons / wooden pallet NMRV-E Extension Transmission Worm Reducer