HSS timing pulley hobs Specification Timing pulley profileBelt typeCommon arrangeSizeS.T.DMXL(2.032)10-23T 24-R32×25×13XL(5.08)10-R55×50×22L(9.525)10-R55×50×22H(12.7)14-19T 20-R70×60×27XH(22.225)18-R85×85×32XXH(31.75)18-R90×90×32H.T.D2M50×40×223M9-15T 16-25T 26-80T 81-R50×40×225M11-16T 17-31T 32-79T 80-200T50×50×228M18-27T 28-40T 41-89T 90-200T70×65×2714M28-40T 41-89T 90-R75×75×2720MS.T.S2M3M16-25T 26-80T50×40×225M20-24T 25-40T55×60×278M20-24T 25-31T 32-48T 49-120T70×65×2714M28-36T 37-51T 52-100T 101-200T75×75×2720MA.T.(D.T)A(T5)10-14T 15-20T 21-R55×45×22T1012-15T 16-20T 21-R65×60×27T2015-20T 21-R80×80×32(D)T513-17T 18-25T 26-40T 41-R55×45×22T1012-15T 21-R65×60×27T2015-20T 21-R80×80×32G.T.2GT16-25T 26-80T3GT25-26T 26-50T5GT17-31T 32-79T8GT18-28T 29-89T