Research the influence of cleaned grain material components on surface of combine working bodies with UHMWPE covering

In article the possibility of application the polymeric materials in combine units is considered. The purpose of conducted researches – the comparative analysis of interaction of cleaned grain material with working bodies of harvesters with steel covering and with covering from polymeric materials. Decrease in abrasive wear of UHMWPE polymer was revealed at interaction with grain material and decrease of macro- and micro- damages of grain.