BRECOtimingbelttimingbeltpulleysendallowsrunouttolerancessectionlineofcodePulleyendtoallowtherunouttolerances(unit:MM)inTable2PulleyoutsidediameterAllowstherunout≤101.600.1>101.60~254.00Pulleyoutsidediameterx0.001>254.000.25+[(pulleyoutsidediameter-254.00)x0.005]≤203.20300.13>1203.200.13+[(pulleyoutsidediameter-203.20)x0.005]BRECO同步带同步带轮端面允许跳动量公差节线代号TheBRECOPUtimingbeltspolyurethanetimingbeltsPUbeltmaterialcanbedividedintochloroprenerubber,plusfiberropebelt,polyurethane,pluswiretimingbeltteethshapedintotrapezoidaltoothandarctoothtwocategories,accordingtotherowofclothcanbetootheddividedintosingle-sidedtoothsynchronousbeltandDoubleSidedTimingBelt.PUtimingbelthasexcellentflexresistance,elongation,strongadvantages,butalsowithoil,heatresistance,agingresistance,ozoneresistance,resistancetocrackingandexcellentperformance.Existingtimingbeltmorethan30kindsofmodels,morethan1000kindsofspecificati***,andsupportingthetimingbeltpulleys,Inadditiontotheconventionalmodels,butalsomanufacturethespecialspecificationmodelofthetimingbeltisdesignedforuserstomeetthespecialuserequirementsoftheuser.BRECO带轮端面允许跳动量公差(单位：MM)表2带轮外径允许跳动量≤101.600.1>101.60～254.00带轮外径x0.001>254.000.25+[(带轮外径-254.00)x0.005]≤203.20300.13>1203.200.13+[(带轮外径-203.20)x0.005]BRECOPU同步带聚氨酯同步带PU同步带按材质可分为氯丁橡胶加纤维绳同步带，聚氨酯加钢丝同步带，按齿的形目前主要分为梯形齿和圆弧齿两大类，按带齿的排布面又可分为单面齿同步带和双面齿同步带。BRECOPU同步带具有优良的耐屈挠性能、伸长率小、强力高等优点，还具有耐油、耐热、耐老化、耐臭氧、抗龟裂等优良性能。现有同步带30多种型号，1000多种规格，并配套同步带轮，除常规型号外,还能为用户设计制造特殊规格型号的同步带，满足用户特殊的使用要求。BRECO聚氨酯同步带型号有MXL.XL.L.H.XH.XXH.T2.5T5.TT5.T10.T20.AT5.AT10.AT20.HTD.3M.5M.8M.14M.20M.STD2M.S3M.S4.5M.S5M.S8M.S14M.RPP5M.RPP8M等。)