| 摘要 |
A sprocket comprising at least one groove for engaging a toothed belt, said groove having a flank, the flank having a groove tip radii (R1) of between approximately 105% and approximately 125% of a belt tooth root radii (R8) when the toothed belt is in rack form, said groove tip radii being joined to a groove arcuate conjugate flank portion (200) by a linear flank portion (202), and said linear flank portion being disposed at an angle (F) of between approximately 18° to approximately 24° with respect to a groove centerline (CL) and comprising a length of at least approximately 20% of a sprocket groove depth (h). |
