RUBBER COMPOSITION, RUBBER COMPOSITION FOR CRAWLER, RUBBER FOR LUG PART AND RUBBER CRAWLER

摘要

PROBLEM TO BE SOLVED: To provide: a rubber composition and a rubber composition for a crawler capable of obtaining a rubber having excellent tensile strength even when a reclaimed rubber is blended in a larger amount than before and excellent wear resistance; and a rubber for its lug part and a rubber crawler having excellent tensile strength and wear resistance.SOLUTION: There is provided a rubber composition obtained by blending 100 pts.mass of an unvulcanized raw material rubber component containing a diene rubber as a main component, 100 pts.mass or more and 500 pts.mass or less of a reclaimed rubber based on 100 pts.mass of the raw material rubber component, a vulcanizing agent in an amount within the range of (the blending amount of the reclaimed rubber [pts.mass]/200))×(1.0 to 3.0 pts.mas), zinc oxide in an amount within the range of (the blending amount of the reclaimed rubber [pts.mass]/200))×(1.0 to 4.0 pts.mas) and carbon black in an amount within the range of (the blending amount of the reclaimed rubber [pts.mass]/200))×(10.0 to 20.0 pts.mas), relative to the specific basic blending.SELECTED DRAWING: None