To solve the problem that a lifetime is shortened due to an oblique transfer of a block or a generation of a noise by stabilizing feeding of a belt by raising an accuracy of a PLD of the belt by raising a thickness accuracy of an elastomer sheet used for a center belt.
A method for manufacturing the center belt which is used for a high load transmission belt made of a plurality of the engaged and fixed blocks 2 along a longitudinal direction of the center belt 3 and which has an outer layer 4b laminated on an outside of a core 5 and an inner layer 4a laminated on an inside of the core 5. In this method, a secondary sheet regulated to a predetermined thickness by slicing a primary sheet obtained by rolling the elastomer is used as the inner layer 4a.
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