MechanicalprocessingBRECO®andBRECOFLEX®timingbeltscanbemechanicallyreworkedtomeetspecialfunctionalfeatures.Forthispurpose,inparticular,timingbeltswiththickbacks,Tversion,typeseriesDR,andvariouscoatingmaterialsare***ailable.MechanicalreworkingPiercedBRECO®timingbeltsareusedinvacuumtransportsystems.Theirpreferredversionismanufacturedwithtension-member-freezones.Also***ailableforthispurposeareBRECOFLEX®timingbelts.Pleasenotethattheflexibilityoftimingbeltswithathickerbackisreducedandthereforetheyrequirelargerpulleydiameters.Beltflexibilitycanbeimprovedbycrossgroovingorincisi***.)