Vol.1, No 4, 1997 pp. 423 - 428
UDC: 62-233.27

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ASPECTS CONCERNING THE BEHAVIOUR OF ROLLING TRACKS UNDER LIMIT LOADS
Eugen Cefranov
University of Suceava, Romania

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Abstract. The paper presents results of experimental and theoretical research concerning remanent deformations which occur in rolling tracks when the contact pressure exceeds a certain limiting value. For bearings and ball-rolling tracks, the static loading capacity is defined for a maximum force which produces a remanent deformation deltha_rem=10^-4d. Experimental studies upon the behaviour of a ball-plane contact lead to relations for the dimensions of the plastic prints produced by contact forces. The favorable influence of the cold-hardening upon the rolling tracks resistance at contact deformation it is also revealed. 

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USLOVI KOJI OPREDELJUJU PONAŠANJE VALJČASTIH VOĐICA KOD LEŽAJEVA
PRI GRANIČNIM OPTEREĆENJIMA U ovom radu su izložena teorijska i eksperimentalna istraživanja remanentne deformacije koja nastaje kod valjčastih vodjica kada kontaktni pritisak dostiže graničnu vrednost.