u.s tsubaki sprockets sprocket hardening hardness conversion ... no tensile str lbs per sq in 10 11 13 14 15 16 17 18 20 21 22 23 24 25 26 28 29 ... 40 41 42 44 45 46 47 49 50 52 53 55 57 58 60 62 64 66 68 70 60.5 61.0 61.5 62.0 ... 125,000 128,000 131,000 134,000 138,000 142,000 146,000 150,000 155,000 160,000 165,000 ... 352,000 368,000 384,000 all u.s tsubaki sprockets are made from high quality steel since ... chain loadings are evenly distributed over ... strength material sprocket diameter and pitch determine the specific material ... process of small diameter small pitch sprockets is usually a one-step procedure heat ... induction large diameter large pitch sprockets can usually be directly flame hardened ... absorb shock loads this is accomplished by hardening only the wear area of each ...
teeth constant 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 ... 12.4275 12.7455 13.0635 13.3815 13.6995 14.0175 14.3356 14.6536 14.9717 15.2898 15.6079 ... 15.9260 16.2441 16.5619 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 ... 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 ... for the number of teeth as shown above by the chain pitch to determine the pitch ... diameter of a 28-tooth sprocket for 140 chain use a constant of 8.9315 and multiply ... by chain pitch 1³ to obtain a pitch diameter of ...