Vol.7, No1, 2007, pp. 37-46
UDC 621.833.01

Abstract

According to clauses of Machinery Directive 98/37/EC the basic requirements are defined which have to be met by gear power transmissions in regard to health and safety. Different types of gear teeth damage, fracture and affecting conditions of environment, service and maintenance are analysed in the paper. A detailed description of damage forms of teeth flank surfaces under high loads and insufficient lubrication which can cause failure of heavy machinery and also imposes danger for people and environment. Testing and analysis procedures for some types and levels of teeth damage are shown. Tests of gear teeth of an excavator front arm are presented.

Keywords: gears, Machinery Directive 98/37/EC, damage, safety