抄録
To investigate an applicability for reduction of the friction loss of tapered roller bearing, a surface modification technic using a roller burnishing and a micro shot peening was proposed Bronze containing micro sized sulfur phase acting as solid lubricant or molybdenum di-sulfide was penetrated into micro dimples fabricated to a chromium alloy steel surface The friction properties was evaluated with a ring on disc type testing apparatus mated with a chromium alloy steel surface in lubricated condition Results showed that the friction coefficient of sulfide alloy penetrated surface was relatively stable and lower, compared with those of molybdenum di-sulfide, bronze without sulfide and dimpled surfaces Therefore, it was estimated that the composed surface consisted from chromium alloy steel and bronze with micro sized sulfur fabricated with the roller burnishing and the micro shot peening is effective for reduction of friction loss of a tapered roller bearing
