Updating of lubricants and packing devices of rolling-cutter drill bit supports
The article presents the results of the studies aimed at updating of lubrication and sealing devices of rolling-cutter drill bit supports. Based on the analysis of the existing patterns and constructions of lubrication systems, used when manufacturing the serial drilling tools, new construction of lubricant and sealing devices were developed Use in practice proposed constructive solutions in view of lubricating and sealing devices will allow, firstly, to improve the reliability and durability of both the sealing system and bearing assemblies in the whole, and, secondly, to simplify their constructions as compared with the existing serial analogues, thus reducing the cost of the drilling tool manufacture.