Rex Linkbelt Roller Chain Catalog - Norfolkbearings.com

SprocketsC 2050 sprockets • 1.250" pitchTTLENGTHTHRUBORESprockets are usually furnished withtwice the required number of teeth,virtually doubling sprocket life. Sprocketswith only the required number of teeth,can also be furnished.TCHAINPITCHSCHAINPITCHROOT DIAMETERPIITCH DIAMETEROUTSIDE DIAMETERMAXIMUMHUBDIAMETERCHAINPITCHMAXIMUMBOREFig. 6450Type AType BFig. 6446Type CMaximumNumber Outside Maximum bore with Number Outside Number Outsideof Pitch Root dia., hub standard S of Pitch Root dia., of Pitch Root dia.,effective dia., dia., inches diameter, keyseat, max., effective dia., dia., inches effective dia., dia., inchesteeth inches inches ∆ inches inches inches teeth inches inches ∆ teeth inches inches ∆hsh hFig. 8382E6 2.500 2.100 2.708 1.50 .969 .609 23 1 / 29.378 8.978 9.710 48 19.112 18.712 19.476 1 / 22.690 2.290 2.898 1.72 1.125 .688 24 9.577 9.177 9.911 49 19.510 19.110 19.877 2.881 2.481 3.112 1.94 1.375 .844 24 1 / 29.775 9.375 10.111 50 19.908 19.508 20.367 1 / 23.073 2.673 3.305 2.14 1.438 .906 25 9.973 9.573 10.308 51 20.305 19.905 20.668 3.266 2.866 3.517 2.36 1.625 1.000 25 1 / 210.172 9.772 10.507 52 20.703 20.303 21.068 1 / 23.460 3.060 3.711 2.56 1.813 1.094 26 10.370 9.970 10.707 53 21.100 20.700 21.469 3.655 3.255 3.920 2.77 1.938 1.219 26 1 / 210.569 10.169 10.906 54 21.498 21.098 21.869 1 / 23.850 3.450 4.115 2.98 2.125 1.313 27 10.767 10.367 11.105 55 21.896 21.496 22.2510 4.045 3.645 4.321 3.19 2.313 1.438 27 1 / 210.966 10.566 11.304 56 22.293 21.893 22.6510 1 / 24.241 3.841 4.517 3.39 2.438 1.531 28 11.164 10.764 11.504 57 22.961 22.291 23.0511 4.437 4.037 4.722 3.59 2.625 1.625 28 1 / 211.362 10.962 11.702 58 23.089 22.689 23.4511 1 / 24.633 4.233 4.918 3.80 2.750 1.688 29 11.561 11.161 11.902 59 23.486 23.086 23.8512 4.830 4.430 5.123 4.00 2.875 1.781 29 1 / 211.760 11.360 12.101 60 23.884 23.484 24.2412 1 / 25.026 4.626 5.319 4.20 2.906 1.813 30 11.958 11.558 12.300 61 24.282 23.882 24.6413 5.223 4.823 5.522 4.41 2.934 1.875 30 1 / 212.157 11.757 12.499 62 24.680 24.280 25.0413 1 / 25.420 5.020 5.719 4.61 3.125 1.934 31 12.356 11.956 12.699 63 25.077 24.677 25.4414 5.617 5.217 5.921 4.81 3.250 2.000 31 1 / 212.554 12.154 12.897 64 25.475 25.075 25.8414 1 / 25.815 5.415 6.119 5.02 3.313 2.094 32 12.753 12.353 13.098 65 25.873 25.473 26.2315 6.012 5.612 6.321 5.22 3.563 2.219 32 1 / 212.952 12.552 13.297 66 26.271 25.871 26.6315 1 / 26.210 5.810 6.519 5.42 3.719 2.313 33 13.150 12.750 13.495 67 26.668 26.268 27.0316 6.407 6.007 6.720 5.63 3.750 2.313 33 1 / 213.349 12.949 13.691 68 27.066 26.666 27.4316 1 / 26.605 6.205 6.918 5.83 3.781 2.375 34 13.547 13.147 13.893 69 27.464 27.064 27.8217 6.803 6.403 7.121 6.03 3.875 2.438 35 13.945 13.545 14.290 70 27.862 27.462 28.2217 1 / 27.001 6.601 7.319 6.22 4.125 2.500 36 14.342 13.942 14.790 71 28.259 27.859 28.6218 7.198 6.798 7.519 6.42 4.313 2.625 37 14.740 14.340 15.090 72 28.657 28.257 29.0218 1 / 27.396 6.996 7.717 6.63 4.375 2.688 38 15.137 14.737 15.490 73 29.055 28.655 29.4219 7.595 7.195 7.918 6.83 4.500 2.750 39 15.534 15.134 15.880 74 29.453 29.053 29.8119 1 / 27.792 7.392 8.115 7.03 4.750 3.000 40 15.932 15.532 16.28 75 29.850 29.450 30.2120 7.991 7.591 8.317 7.23 5.125 3.125 41 16.329 15.929 16.68 76 30.248 29.848 30.6120 1 / 28.189 7.789 8.515 7.44 5.250 3.250 42 16.727 16.327 17.08 77 30.646 30.246 31.0121 8.387 7.987 8.715 7.63 5.500 3.375 43 17.124 16.724 17.48 78 31.044 30.644 31.4121 1 / 28.585 8.185 8.913 7.83 5.750 3.625 44 17.522 17.122 17.88 79 31.441 31.041 31.8122 8.783 8.383 9.113 8.03 5.875 6.688 45 17.920 17.520 18.27 80 31.839 31.439 32.2122 1 / 28.982 8.582 9.312 8.23 6.125 3.750 46 18.317 17.917 18.6723 9.180 8.780 9.512 8.44 47 18.715 18.315 19.07 Larger sizes available.Hub length thru boreSprockettypeNumber of Hub length Sprocket Number of Hub lengtheffective thru bore, typeeffective thru bore,teeth inches teeth inches6 to 9 1 / 21.00 13 to 24 2.0010 to 19 1 / 21.13 24 1 / 2to 30 2.25B 20 to 30 1 / 21.38 C 30 1 / 2to 40 2.5031 to 45 1.63 41 to 60 2.7546 to 80 1.88 61 to 72 3.0073 to 80 3.25Tooth dimensionsT = .343" + .000", –.010" for machined sprockets.T = .343" + .000", –.036" for hot rolled platesprockets or unfinished forgings.Recommended standard bore tolerances, keyseat dimensions, eccentricity tolerances, and similar data, page G-2.h “Effective” describes the number of teeth that engage the chain rollers during each revolution of the sprocket. See Fig. 8382 above. The effective number is usedto calculate chain speed. Sprockets are normally furnished with twice the effective number listed. When the actual number of teeth is 24 or more, sprockets forNo. 50 roller chain may be used. See page C-17 for sprocket data.∆ Non-functional dimension that may vary with the type of cutter used.s Based on maximum hub diameter.E-12