浙江省奉化市武岭机械密封件厂生产的东方红系列履带拖拉机支重轮改进型密封装置,1992年开始在黑龙江省宝泉岭农场局装车试验48台,到1994年历经2000h的生产试验及跟踪调查表明:此产品性能好,质量可靠,解决了几十年来令广大机务工作者头疼的支重轮漏油、进水和进泥问题。1995年进入批量推广阶 Zhejiang Province Fenghua Wuling mechanical seal factory production Dongfanghong series crawler tractor roller improved seal, started in 1992 in Heilongjiang Province Baoquan Ling Farm Bureau loading test 48 to 1994 after 2000h production test And follow-up survey showed that: This product has good performance, reliable quality, solve the problem of roller gear oil leakage, water inflow and into the mud for the majority of maintenance workers for decades. In 1995 to enter the bulk promotion stage