| 摘要 |
2103444 9222757 PCTABS00018 The combination of an endless power transmission belt construction and a pulley therefor, the belt construction and methods of making the same are provided, the belt construction (41-41B) having opposed inner and outer surfaces (48-48B, 49-49B) with each surface defining a plurality of longitudinally disposed and alternately spaced apart like projections (60-60B) and grooves (61-61B) that are adapted to mesh with a ribbed surface (71) of a pulley (70), the depth (D) of the grooves of each of the surfaces of the belt construction (41-41B) being substantially less than the approximately 2.4 mm depth of the grooves of the known belt construction that is adapted to have one of the opposed surfaces thereof mesh with the ribbed surface of the pulley in the same manner as the first mentioned belt construction.
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