One of very important requirements for measuring devices is fact that measured values of observed quantity will be in specific tolerance zone of actual value also after longer period of use. Deviations of actual value can be caused by several factors – improper handling with devices, inadequate maintenance and storing, aging of materials of which they are made and last but not least, by wear of single parts.The target was to define the way of wear elimination of most faulty parts of dial gauges to obtain the maximum possible lifetime with minimal possible costs. Since, the using of more resistant material for producing of faulty part is difficult economically, for eliminating of wear, there was used the coating method for given part. By experimental results, it was choosen suitable way of coating.Keywords: Coating, measuring devices, elimination of wear, lifetime
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