链式拖拉机支重台车密封部位漏油是行业中众所周知的棘手难题。1996年，海拉尔牧管局机电处从全国农垦系统春季农业生产现场会上获悉，奉化市武岭机械密封件厂生产的东方红系列拖拉机支重合率浮动油封密封总成已在黑龙江省农垦系统和新疆生产建设兵团推广，当即引进示范，于当 Chain tractor heavy truck sealing parts of the oil spill is well-known in the industry, the tricky problem. In 1996, the mechanical and electrical department of Hailar Animal Husbandry Bureau learned from the National Agricultural Reclamation System Spring Agricultural Production Field Meeting that Fenghuang Wuling mechanical seal factory produced Dongfanghong series tractor branch coincidence rate floating seal seal assembly in Heilongjiang Provincial Land Reclamation System and Xinjiang Production and Construction Corps promotion, the immediate introduction of demonstration, at the moment