Abstract
The objective of this work is to investigate the impact of monoglycerols, stearin and olein acids on tribological and plastic properties of the greases of rapeseed oil and lard. A four-ball type tribotester was used to perform tribological tests under the 150 and 300 N load. The test results show that the use of monoglycerides could increase the consistence of both rapeseed oil and lard according to the different consistence categories of greases. Tribological tests presented good properties of such lubricants to decrease the wear and friction. Special advantage of rapeseed oil and lard greases modified by stearin and olein acid is the ability to change the friction coefficient during the tests – it has the trend to decrease. DOI: http://dx.doi.org/10.5755/j01.mech.18.1.1292
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