No. 50 sprockets • .625" pitch
Dimensions
C
Maximum Maximum bore with Outside hub and standard Outside Outside Number Pitch Root diameter, groove keyseat, S Number Pitch Root diameter, Number Pitch Root diameter, of diameter, diameter, inches diameter, inches max., of diameter, diameter, inches of diameter, diameter, inches teeth inches inches ∆ inches s inches teeth inches inches ∆ teeth inches inches ∆
8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45
1.633 1.827 2.023 2.219 2.415 2.612 2.809 3.006 3.204 3.401 3.599 3.797 3.995 4.194 4.392 4.590 4.788 4.987 5.185 5.384 5.582 5.781 5.979 6.178 6.376 6.575 6.774 6.972 7.171 7.370 7.569 7.767 7.966 8.165 8.363 8.562 8.761 8.960
1.233 1.427 1.623 1.819 2.015 2.212 2.409 2.606 2.804 3.001 3.199 3.397 3.595 3.794 3.992 4.190 4.388 4.587 4.785 4.984 5.182 5.381 5.579 5.778 5.976 6.175 6.374 6.572 6.771 6.970 7.169 7.367 7.566 7.765 7.963 8.162 8.361 8.560
1.884 2.092 2.299 2.504 2.708 2.911 3.114 3.316 3.517 3.719 3.919 4.121 4.321 4.522 4.722 4.922 5.123 5.323 5.523 5.723 5.922 6.122 6.321 6.521 6.721 6.920 7.120 7.319 7.519 7.718 7.918 8.117 8.316 8.516 8.715 8.914 9.114 9.313
.84 1.06 1.27 1.47 1.67 1.88 2.08 2.28 2.48 2.69 2.89 3.08 3.28 3.48 3.69 3.89 4.08 4.28 4.48 4.69 4.89 5.08 5.28 5.48 5.69 5.89 6.08 6.28 6.48 6.69 6.88 7.08 7.28 7.48 7.67 7.88 8.08 8.28
.563 .688 .875 .969 1.125 1.313 1.438 1.625 1.750 1.875 2.063 2.250 2.375 2.563 2.688 2.813 2.875 2.906 2.938 3.125 3.250 3.313 3.563 3.719 3.750 3.781 3.875 4.125 4.313 4.375 4.500 4.750 5.125 5.250 5.500 5.750 5.875 6.125
.344 .438 .531 .609 .688 .813 .906 1.000 1.063 1.188 1.281 1.375 1.500 1.594 1.656 1.719 1.781 1.813 1.875 1.938 2.000 2.094 2.219 2.313 2.344 2.375 2.438 2.500 2.625 2.688 2.750 3.000 3.125 3.250 3.375 3.625 3.688 3.750
B
C
C - 18
9.159 9.357 9.556 9.755 9.954 10.153 10.351 10.550 10.749 10.948 11.147 11.346 11.544 11.743 11.942 12.141 12.340 12.539 12.738 12.936 13.135 13.334 13.533 13.732 13.931 14.130 14.329 14.527 14.726 14.925 15.124 15.323 15.522 15.721 15.920 16.118 16.317 16.516
8.759 8.957 9.156 9.355 9.554 9.753 9.951 10.150 10.349 10.548 10.747 10.946 11.144 11.343 11.542 11.741 11.940 12.139 12.338 12.536 12.735 12.934 13.133 13.332 13.531 13.730 13.929 14.127 14.326 14.525 14.724 14.923 15.122 15.321` 15.520 15.718 15.917 16.116
9.512 9.711 9.911 10.110 10.309 10.508 10.708 10.907 11.106 11.305 11.504 11.703 11.903 12.102 12.301 12.500 12.699 12.898 13.097 13.296 13.496 13.694 13.894 14.093 14.292 14.491 14.690 14.889 15.088 15.287 15.486 15.685 15.884 16.083 16.283 16.481 16.681 16.879
84 16.715 16.315 85 16.914 16.514 86 17.113 16.713 87 17.312 16.912 88 17.511 17.111 89 17.710 17.310 90 17.909 17.509 91 18.107 17.707 92 18.306 17.906 93 18.505 18.105 94 18.704 18.304 95 18.903 18.503 96 19.102 18.702 97 19.301 18.901 98 19.500 19.100 99 19.699 19.299 100 19.898 19.498 101 20.096 19.696 102 20.295 19.895 103 20.494 20.094 104 20.693 20.293 105 20.892 20.492 106 21.091 20.691 107 21.290 20.890 108 21.489 21.089 109 21.688 21.288 110 21.887 21.487 111 22.086 21.686 112 22.285 21.885 113 22.484 22.084 114 22.683 22.283 115 22.881 22.481 116 23.080 22.680 117 23.279 22.879 118 23.478 23.078 119 23.677 23.277 120 23.876 23.476 Larger sizes available
17.079 17.278 17.476 17.676 17.874 18.074 18.273 18.471 18.671 18.869 19.069 19.268 19.466 19.666 19.864 20.064 20.263 20.463 20.661 20.860 21.059 21.258 21.457 21.656 21.855 22.054 22.253 22.452 22.651 22.850 23.049 23.248 23.447 23.646 23.845 24.038 24.243
Tooth dimensions, inches
Hub length thru bore, inches Sprocket Type
46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83
Chain width, number of strands
Number of teeth
1
2
3
4
5
6
8 to 19 20 to 39 40 to 61 62 to 90 91 to 120 26 to 48 49 to 60 61 to 80 81 to 120
1.00 1.13 1.38 1.63 1.88 2.00 2.25 2.50 2.75
1.75 1.88 2.13 2.38 2.63 2.50 2.75 3.00 3.25
2.50 2.63 2.88 3.13 3.38 3.00 3.25 3.50 3.75
3.25 3.38 3.63 3.88 4.13 3.75 4.00 4.25 4.50
4.00 4.13 4.38 4.63 4.88 4.25 4.50 4.75 5.00
4.75 4.88 5.13 5.38 5.63 4.75 5.00 5.25 5.50
Dimension T L K Tolerances for T and L
Chain width, number of strands 1
2
3
4
5
6
3.43 ... ...
.332 1.045 .713
.332 1.758 .713
.311 2.450 .713
.311 3.163 .713
.311 3.876 .713
Machined sprockets+.000”, –.010” Hot rolled steel plate sprockets or unfinished forgings +.000”, –.036”
Recommended standard bore tolerances, keyseat dimensions, eccentricity tolerances, and similar data, page G-2. ∆ Non-functional dimension that may vary with the type of cutter used. s Based on maximum hub diameter.