... high strength and hard tooth surface extruder gearbox of ZLYJ series for plastic extruderSeries ZLYJ decelerator is a drive with high ... thrust bearing with over-specificaiton is mounted on the front end of the hollow output shaft to carry back backblow of ... assemblage mode respectivelyExample of earmark: ZLYJ 225-- 12.5 -- (,)ZLYJ series 133, 146, 173, 200, 225, 250, 280, 315, 330 are ...