XL Timing Pulleys
XL pulleys are stock belt positive drive pulleys with trapezoidal teeth with a 1/5 pitch. XL is the smallest pitch in a family of 5 with XL, L, H, XH, XXH. Grob carries XL, L, and H sized pitches. XL is typically used in medium-speed low-torque applications. Paired with H belt tooth profile.
1/5-XL Timing Belt Data
| Part Name | No. Teeth | Pitch Dia. | OD | Root Diameter |
|---|---|---|---|---|
| 1/5-XL-10 | 10 | 0.637 | 0.618 | 0.491 |
| 1/5-XL-11 | 11 | 0.700 | 0.681 | 0.554 |
| 1/5-XL-12 | 12 | 0.764 | 0.745 | 0.618 |
| 1/5-XL-13 | 13 | 0.828 | 0.809 | 0.682 |
| 1/5-XL-14 | 14 | 0.891 | 0.872 | 0.745 |
| 1/5-XL-15 | 15 | 0.955 | 0.936 | 0.809 |
| 1/5-XL-16 | 16 | 1.019 | 1.000 | 0.873 |
| 1/5-XL-17 | 17 | 1.082 | 1.064 | 0.937 |
| 1/5-XL-18 | 18 | 1.146 | 1.128 | 1.001 |
| 1/5-XL-19 | 19 | 1.210 | 1.192 | 1.065 |
| 1/5-XL-20 | 20 | 1.273 | 1.255 | 1.128 |
| 1/5-XL-21 | 21 | 1.337 | 1.319 | 1.192 |
| 1/5-XL-22 | 22 | 1.401 | 1.383 | 1.256 |
| 1/5-XL-23 | 23 | 1.464 | 1.446 | 1.319 |
| 1/5-XL-24 | 24 | 1.528 | 1.510 | 1.383 |
| 1/5-XL-25 | 25 | 1.592 | 1.574 | 1.447 |
| 1/5-XL-26 | 26 | 1.655 | 1.637 | 1.510 |
| 1/5-XL-27 | 27 | 1.719 | 1.701 | 1.574 |
| 1/5-XL-28 | 28 | 1.783 | 1.765 | 1.638 |
| 1/5-XL-29 | 29 | 1.846 | 1.828 | 1.701 |
| 1/5-XL-30 | 30 | 1.910 | 1.892 | 1.765 |
| 1/5-XL-31 | 31 | 1.974 | 1.956 | 1.829 |
| 1/5-XL-32 | 32 | 2.037 | 2.019 | 1.892 |
| 1/5-XL-33 | 33 | 2.101 | 2.083 | 1.956 |
| 1/5-XL-34 | 34 | 2.165 | 2.147 | 2.020 |
| 1/5-XL-35 | 35 | 2.228 | 2.210 | 2.083 |
| 1/5-XL-36 | 36 | 2.292 | 2.274 | 2.147 |
| 1/5-XL-37 | 37 | 2.355 | 2.337 | 2.210 |
| 1/5-XL-38 | 38 | 2.419 | 2.401 | 2.274 |
| 1/5-XL-39 | 39 | 2.483 | 2.465 | 2.338 |
| 1/5-XL-40 | 40 | 2.546 | 2.528 | 2.401 |
| 1/5-XL-41 | 41 | 2.610 | 2.592 | 2.465 |
| 1/5-XL-42 | 42 | 2.674 | 2.656 | 2.529 |
| 1/5-XL-43 | 43 | 2.737 | 2.719 | 2.592 |
| 1/5-XL-44 | 44 | 2.801 | 2.783 | 2.656 |
| 1/5-XL-45 | 45 | 2.865 | 2.847 | 2.720 |
| 1/5-XL-46 | 46 | 2.928 | 2.910 | 2.783 |
| 1/5-XL-47 | 47 | 2.992 | 2.974 | 2.847 |
| 1/5-XL-48 | 48 | 3.056 | 3.038 | 2.911 |
| 1/5-XL-49 | 49 | 3.119 | 3.101 | 2.974 |
| 1/5-XL-50 | 50 | 3.183 | 3.165 | 3.038 |
| 1/5-XL-51 | 51 | 3.247 | 3.229 | 3.102 |
| 1/5-XL-52 | 52 | 3.310 | 3.292 | 3.165 |
| 1/5-XL-53 | 53 | 3.374 | 3.356 | 3.229 |
| 1/5-XL-54 | 54 | 3.438 | 3.420 | 3.293 |
| 1/5-XL-55 | 55 | 3.501 | 3.483 | 3.356 |
| 1/5-XL-56 | 56 | 3.565 | 3.547 | 3.420 |
| 1/5-XL-57 | 57 | 3.629 | 3.611 | 3.484 |
| 1/5-XL-58 | 58 | 3.692 | 3.674 | 3.547 |
| 1/5-XL-59 | 59 | 3.756 | 3.738 | 3.611 |
| 1/5-XL-60 | 60 | 3.820 | 3.802 | 3.675 |
| 1/5-XL-61 | 61 | 3.883 | 3.865 | 3.738 |
| 1/5-XL-62 | 62 | 3.947 | 3.929 | 3.802 |
| 1/5-XL-63 | 63 | 4.011 | 3.993 | 3.866 |
| 1/5-XL-64 | 64 | 4.074 | 4.057 | 3.930 |
| 1/5-XL-65 | 65 | 4.138 | 4.121 | 3.994 |
| 1/5-XL-66 | 66 | 4.202 | 4.185 | 4.058 |
| 1/5-XL-67 | 67 | 4.265 | 4.248 | 4.121 |
| 1/5-XL-68 | 68 | 4.329 | 4.312 | 4.185 |
| 1/5-XL-69 | 69 | 4.393 | 4.376 | 4.249 |
| 1/5-XL-70 | 70 | 4.456 | 4.439 | 4.312 |
| 1/5-XL-71 | 71 | 4.520 | 4.503 | 4.376 |
| 1/5-XL-72 | 72 | 4.584 | 4.567 | 4.440 |
| 1/5-XL-73 | 73 | 4.647 | 4.630 | 4.503 |
| 1/5-XL-74 | 74 | 4.711 | 4.694 | 4.567 |
| 1/5-XL-75 | 75 | 4.775 | 4.758 | 4.631 |
| 1/5-XL-76 | 76 | 4.838 | 4.821 | 4.694 |
| 1/5-XL-77 | 77 | 4.902 | 4.885 | 4.758 |
| 1/5-XL-78 | 78 | 4.966 | 4.949 | 4.822 |
| 1/5-XL-79 | 79 | 5.029 | 5.012 | 4.885 |
| 1/5-XL-80 | 80 | 5.093 | 5.076 | 4.949 |
| 1/5-XL-81 | 81 | 5.157 | 5.140 | 5.013 |
| 1/5-XL-82 | 82 | 5.220 | 5.203 | 5.076 |
| 1/5-XL-83 | 83 | 5.284 | 5.267 | 5.140 |
| 1/5-XL-84 | 84 | 5.348 | 5.331 | 5.204 |
| 1/5-XL-85 | 85 | 5.411 | 5.394 | 5.267 |
| 1/5-XL-86 | 86 | 5.475 | 5.458 | 5.331 |
| 1/5-XL-87 | 87 | 5.539 | 5.522 | 5.395 |
| 1/5-XL-88 | 88 | 5.602 | 5.585 | 5.458 |
| 1/5-XL-89 | 89 | 5.666 | 5.649 | 5.522 |
| 1/5-XL-90 | 90 | 5.730 | 5.713 | 5.586 |
| 1/5-XL-91 | 91 | 5.793 | 5.776 | 5.649 |
| 1/5-XL-92 | 92 | 5.857 | 5.840 | 5.713 |
| 1/5-XL-93 | 93 | 5.921 | 5.904 | 5.777 |
| 1/5-XL-94 | 94 | 5.984 | 5.967 | 5.840 |