Endless belt for use with heavy duty track vehicles

An endless belt for use with a heavy duty track vehicle comprising:

• an elongated endless body made of polymeric material, said body having a longitudinal direction, an outer surface and an inner surface;
• a plurality of longitudinally spaced guide members integrally formed to said inner surface extending transversely to the longitudinal direction at mid-section of said body and defining first valleys between adjacent guide members;
• and
• two rows of longitudinally spaced tread members integrally formed to said outer surface;
• the tread members of a first of said rows being longitudinally offset relative to the tread members of a second of said rows;
• each said tread member of said first and said second rows having an inner edge area located at a mid-section of said body and extending transversely to a longitudinal direction of the belt;
• said tread members defining second valleys between adjacent inner edge areas of each said rows and an outer edge area;
• said tread members defining a series of pitches on said outer surface of said track wherein a pitch is defined as including a tread member of the first row and an adjacent tread member of the second row;
• each said inner edge area of said tread members being in vertical alignment with a corresponding one of said guide members on said inner surface of said body and parallel to the corresponding one of the guide members;
• wherein two longitudinally spaced guide members are provided on the inner surface for each pitch of said outer surface;
• wherein each pitch on said belt differs from another pitch in value;
• wherein each first valley is in vertical alignment with corresponding second valley so that flexing of said track, when bending, occurs in said first and second valleys where thickness of the body is at its minimum.