Rex Linkbelt Roller Chain Catalog - Norfolkbearings.com

SprocketsNo. 2040 sprockets • 1.000" pitchSprockets are usually furnished with twicethe required number of teeth, virtuallydoubling sprocket life. Sprockets with onlythe required number of teeth, can also befurnishedTTLENGTHTHRUBORETCHAINPITCHSCHAINPITCHROOT DIAMETERPIITCH DIAMETEROUTSIDE DIAMETERMAXIMUMHUBDIAMETERCHAINPITCHFig. 6446MAXIMUMBOREFig. 6450Type AType BType CFig. 8382CMaximumNumber bore with Number Numberof Outside Maximum standard of Outside of Outsideeffective Pitch Root diameter, hub keyseat, S effective Pitch Root diameter, effective Pitch Root diameter,teeth diameter, diameter, inches diameter, inches max., teeth diameter, diameter, inches teeth diameter, diameter, inchesN inches inches ∆ inches s inches N inches inches ∆ N inches inches ∆6 2.000 1.688 2.166 1.19 .750 .469 23 1 / 2 7.502 7.190 7.768 48 15.290 14.978 15.576 1 / 2 2.152 1.840 2.318 1.38 .844 .516 24 7.661 7.349 7.928 49 15.608 15.296 15.897 2.305 1.993 2.491 1.55 1.000 .625 24 1 / 2 7.820 7.508 8.087 50 15.926 15.614 16.217 1 / 2 2.458 2.146 2.644 1.70 1.188 .719 25 7.979 7.667 8.248 51 16.244 15.932 16.538 2.613 2.301 2.811 1.88 1.250 .750 25 1 / 2 8.137 7.825 8.406 52 16.562 16.250 16.858 1 / 2 2.768 2.456 2.968 2.05 1.375 .844 26 8.296 7.984 8.566 53 16.880 16.568 17.179 2.924 2.612 3.136 2.20 1.438 .969 26 1 / 2 8.455 8.143 8.725 54 17.198 16.886 17.489 1 / 2 3.080 2.768 3.292 2.38 1.688 1.031 27 8.614 8.302 8.885 55 17.516 17.205 17.8010 3.236 2.924 3.457 2.55 1.813 1.125 27 1 / 2 8.772 8.460 9.043 56 17.835 17.523 18.1210 1 / 2 3.392 3.080 3.613 2.70 1.938 1.219 28 8.931 8.620 9.204 57 18.153 17.841 18.4411 3.549 3.237 3.777 2.88 2.188 1.344 28 1 / 2 9.090 8.778 9.362 58 18.471 18.159 18.7611 1 / 2 3.706 3.394 3.934 3.03 2.250 1.375 29 9.249 8.937 9.521 59 18.789 18.477 19.0812 3.864 3.552 4.098 3.19 2.250 1.406 29 1 / 2 9.408 9.096 9.680 60 19.107 18.795 19.3912 1 / 2 4.021 3.709 4.255 3.36 2.281 1.438 30 9.567 9.255 9.841 61 19.426 19.114 19.7113 4.179 3.867 4.419 3.52 2.281 1.469 30 1 / 2 9.725 9.413 9.999 62 19.744 19.432 20.0313 1 / 2 4.336 4.024 4.576 3.69 2.375 1.500 31 9.885 9.573 10.160 63 20.062 19.750 20.3514 4.494 4.182 4.738 3.84 2.625 1.625 31 1 / 2 10.043 9.731 10.318 64 20.380 20.068 20.6714 1 / 2 4.652 4.340 4.896 4.00 2.688 1.656 32 10.202 9.890 10.478 65 20.698 20.386 20.9915 4.810 4.498 5.057 4.17 2.750 1.750 32 1 / 2 10.361 10.049 10.637 66 21.016 20.704 21.3015 1 / 2 4.968 4.656 5.215 4.33 2.813 1.781 33 10.520 10.208 10.796 67 21.335 21.023 21.6216 5.126 4.814 5.377 4.48 3.000 1.875 33 1 / 2 10.679 10.367 10.955 68 21.653 21.341 21.9416 1 / 2 5.284 4.972 5.535 4.66 3.375 2.125 34 10.838 10.526 11.12 69 21.971 21.659 22.2617 5.442 5.130 5.696 4.81 3.438 2.156 35 11.156 10.844 11.43 70 22.289 21.977 22.5817 1 / 2 5.600 5.288 5.854 4.97 3.563 2.219 36 11.474 11.162 11.75 71 22.607 22.295 22.9018 5.759 5.447 6.015 5.14 3.625 2.250 37 11.792 11.480 12.07 72 22.926 22.614 23.2118 1 / 2 5.917 5.605 6.173 5.30 3.688 2.281 38 12.110 11.798 12.39 73 23.244 22.932 23.5319 6.076 5.764 6.334 5.45 3.750 2.313 39 12.428 12.116 12.71 74 23.562 23.250 23.8519 1 / 2 6.233 5.921 6.491 5.61 3.750 2.344 40 12.746 12.434 13.03 75 23.880 23.568 24.1720 6.392 6.081 6.654 5.78 3.781 2.375 41 13.064 12.752 13.35 76 24.198 23.886 24.4920 1 / 2 6.551 6.239 6.812 5.94 3.813 2.406 42 13.382 13.070 13.66 77 24.517 24.205 24.8121 6.710 6.398 6.972 6.09 4.000 2.500 43 13.700 13.388 13.98 78 24.835 24.523 25.1321 1 / 2 6.868 6.556 7.130 6.27 4.250 2.625 44 14.018 13.706 14.30 79 25.153 24.841 25.4522 7.027 6.715 7.292 6.42 4.500 2.750 45 14.336 14.024 14.62 80 25.471 25.159 25.7722 1 / 2 7.185 6.873 7.450 6.58 4.750 2.875 46 14.654 14.342 14.9423 7.344 7.032 7.610 6.73 47 14.972 14.660 15.26 Larger sizes available.Hub length thru bore, inchesSprocketNumber Of Hub Length,TypeEffective Thru Bore,Teeth InchesRecommended standard bore tolerances, keyseat dimensions, eccentricity tolerances, and similar data, page G-2.N “Effective” describes the number of teeth that engage the chain rollers during each revolution of the sprocket. See Fig. 8382 above. The effective numberis used to calculate chain speed. Sprockets are normally furnished with twice the effective number listed. When the actual number of teeth is 24 or more,sprockets for No. 40 roller chain may be used. See page C-13 for sprocket data.∆ Non-functional dimension that may vary with the type of cutter used.s Based on maximum hub diameter.C-38SprocketTypeNumber OfEffectiveTeethHub LengthThru Bore,Inches6 to 9 1 / 2 .88 15 to 30 1.7510 to 23 1.00 30 1 / 2 to 41 2.00B 23 1 / 2 to 38 1.13 C 42 to 60 2.2539 to 45 1.25 61 to 80 2.5046 to 80 1.38Tooth dimensions, inchesT = .284” + .000”, – .009” for machined sprockets.T = .284” + .000”, – .035” for hot rolled steelplate sprockets or unfinished forgings.