Rex Linkbelt Roller Chain Catalog - Norfolkbearings.com

C 2122H sprockets • 3.000" pitchSprockets for large diameter roller chainscan be furnished only with the actualnumber of teeth required.TTLENGTHTHRUBORETCHAINPITCHSCHAINPITCHROOT DIAMETERPIITCH DIAMETEROUTSIDE DIAMETERMAXIMUMHUBDIAMETERCHAINPITCHFig. 6446MAXIMUMBOREFig. 6450Type AType BType CFig. 8382MaximumNumber Pitch Root Outside Maximum bore with S Number Pitch Root Outsideof diameter, diameter, diameter, hub standard max., of diameter, diameter, diameter,teeth inches inches inches diameter, keyseat, inches teeth inches inches inches∆ inches inches ∆s6 6.000 4.250 7.000 3.66 2.438 1.531 24 22.985 21.235 24.5887 6.915 5.164 8.030 4.69 3.188 1.969 25 23.937 22.187 25.5488 7.839 6.089 9.040 5.70 4.188 2.594 26 24.890 23.140 26.5079 8.772 7.022 10.042 6.70 4.938 3.031 27 25.842 24.092 27.46710 9.708 7.958 11.033 7.70 5.750 3.563 28 26.795 25.045 28.42711 10.649 8.899 12.017 8.69 6.438 3.969 29 27.747 25.997 29.38512 11.591 9.841 12.996 9.66 6.875 4.188 30 28.701 26.951 30.34413 12.536 10.786 13.971 10.64 7.500 4.563 31 29.654 27.904 31.30214 13.482 11.732 14.945 11.61 8.250 4.906 32 30.608 28.858 32.25915 14.430 12.680 15.914 12.58 9.125 5.438 33 31.560 29.810 33.21616 15.378 13.628 16.883 13.58 9.938 5.938 34 32.514 30.764 34.17617 16.328 14.578 17.849 14.52 35 33.468 31.718 35.13318 17.277 15.527 18.815 15.48 36 34.421 32.671 36.09019 18.227 16.477 19.778 16.44 37 35.375 33.625 37.04720 19.178 17.428 20.742 17.41 38 36.329 34.579 38.00421 20.129 18.379 21.705 18.36 39 37.283 35.533 38.96122 21.080 19.330 22.665 40 38.237 36.487 39.91823 22.032 20.282 23.627 Larger sizes available.EHub length thru boreSprockettypeNumber ofteethHub lengththru bore,inchesSprockettypeNumber ofteethHub lengththru bore,inches6 2.00 7 to 18 3.507 to 8 2.25 19 to 23 3.75B 9 to 17 2.50 C 24 to 30 4.0018 to 26 2.75 31 to 36 4.2527 to 36 3.00 37 to 40 4.5037 to 40 3.25Tooth dimensionsT = .924" + .000", –.016" for machined sprockets.T = .924" + .000", –.057" for hot rolled platesprockets or unfinished forgings.Standard bore tolerances, keyseat dimensions, eccentricity tolerances, andsimilar data, page G-2.∆ Non-functional dimension that may vary with the type of cutter used.s Based on maximum hub diameter.2121E-21