Rex Linkbelt Roller Chain Catalog - Norfolkbearings.com

No. 25 sprockets • .250" pitchCDimensionsMaximumMaximum bore withOutside hub and standard Outside OutsideNumber 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, inchesteeth inches inches ∆ inches s inches teeth inches inches ∆ teeth inches inches ∆8 .653 .523 .754 .31 .250 .125 46 3.664 3.805 3.534 84 6.686 6.556 6.8329 .731 .601 .837 .41 .250 .125 47 3.743 3.885 3.613 85 6.766 6.636 6.91110 .809 .679 .919 .48 .250 .125 48 3.823 3.964 3.693 86 6.845 6.715 6.99111 .887 .757 1.002 .56 .313 .156 49 3.902 4.044 3.772 87 6.925 6.795 7.07012 .966 .836 1.083 .64 .375 .219 50 3.982 4.124 3.852 88 7.004 6.874 7.15013 1.045 .915 1.167 .73 .438 .219 51 4.061 4.203 3.931 89 7.084 6.954 7.23014 1.124 .994 1.246 .81 .563 .313 52 4.141 4.283 4.011 90 7.164 7.034 7.30915 1.203 1.073 1.326 .89 .563 .328 53 4.220 4.363 4.090 91 7.243 7.113 7.38916 1.282 1.152 1.407 .97 .563 .344 54 4.300 4.442 4.170 92 7.323 7.193 7.46817 1.361 1.231 1.487 1.06 .625 .375 55 4.379 4.522 4.249 93 7.402 7.272 7.54818 1.440 1.310 1.568 1.13 .750 .469 56 4.459 4.602 4.329 94 7.482 7.352 7.62819 1.519 1.389 1.648 1.22 .813 .500 57 4.538 4.681 4.408 95 7.561 7.431 7.70720 1.598 1.468 1.729 1.30 .875 .531 58 4.618 4.761 4.488 96 7.641 7.511 7.78721 1.678 1.548 1.809 1.38 .875 .563 59 4.697 4.841 4.567 97 7.720 7.590 7.86622 1.757 1.627 1.889 1.45 .938 .594 60 4.777 4.920 4.647 98 7.800 7.670 7.94623 1.836 1.706 1.969 1.53 1.000 .625 61 4.857 4.727 5.000 99 7.880 7.750 8.02624 1.915 1.785 2.049 1.61 1.063 .656 62 4.936 4.806 5.080 100 7.959 7.829 8.10525 1.995 1.865 2.129 1.69 1.188 .719 63 5.016 4.886 5.159 101 8.039 7.882 8.18526 2.074 1.944 2.209 1.77 1.250 .734 64 5.095 4.965 5.239 102 8.118 7.962 8.26427 2.154 2.024 2.289 1.86 1.250 .750 65 5.175 5.045 5.319 103 8.198 8.042 8.34428 2.233 2.103 2.389 1.94 1.250 .766 66 5.254 5.124 5.398 104 8.277 8.121 8.42429 2.312 2.182 2.449 2.02 1.250 .781 67 5.334 5.204 5.478 105 8.357 8.201 8.50330 2.392 2.262 2.529 2.09 1.313 .813 68 5.413 5.283 5.558 106 8.437 8.280 8.58331 2.471 2.341 2.609 2.19 1.375 .844 69 5.493 5.363 5.637 107 8.516 8.360 8.66232 2.551 2.421 2.688 2.25 1.500 .938 70 5.572 5.442 5.717 108 8.596 8.439 8.74233 2.630 2.500 2.768 2.34 1.563 .969 71 5.652 5.522 5.796 109 8.675 8.519 8.82234 2.710 2.580 2.848 2.41 1.625 1.000 72 5.732 5.602 5.876 110 8.755 8.599 8.90135 2.789 2.659 2.928 2.48 1.688 1.031 73 5.811 5.681 5.956 111 8.834 8.678 8.98136 2.869 2.739 3.008 2.58 1.750 1.063 74 5.891 5.761 6.035 112 8.914 8.758 9.06037 2.948 2.818 3.087 2.66 1.750 1.094 75 5.970 5.840 6.115 113 8.994 8.837 9.14038 3.028 2.898 3.167 2.73 1.813 1.156 76 6.050 5.920 6.195 114 9.073 8.917 9.22039 3.107 2.977 3.247 2.81 1.813 1.172 77 6.129 5.999 6.274 115 9.153 8.996 9.29940 3.187 3.057 3.327 2.89 1.875 1.188 78 6.209 6.079 6.354 116 9.232 9.076 9.37941 3.266 3.136 3.406 2.97 1.938 1.219 79 6.288 6.158 6.433 117 9.312 9.156 9.45842 3.346 3.216 3.486 3.05 2.000 1.250 80 6.368 6.238 6.513 118 9.391 9.235 9.53843 3.425 3.295 3.566 3.13 2.125 1.313 81 6.448 6.318 6.593 119 9.471 9.315 9.61844 3.505 3.375 3.646 3.20 2.188 1.344 82 6.527 6.397 6.672 120 9.550 9.394 9.69745 3.584 3.454 3.725 3.30 2.250 1.375 83 6.607 6.477 6.752 Larger sizes availableHub length thru boreRecommended standard bore tolerances, keyseatdimensions, eccentricity tolerances, and similar data,page G-2.∆ Non-functional dimension that may vary with thetype of cutter used.s Based on maximum hub diameter.C - 10SprocketTypeNumberof teethLengththru bore,inches8 to 19 .50B 20 to 35 .6336 to 73 .7574 to 100 .88Tooth dimensionsT = .110” + .000”, –.007”