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Roller Chain Sprocket Diameters Dimesions per. ANSI/ASME B29.1M
ANSI Roller Chain Sprocket Diameters and Dimensions per. ANSI/ASME B29.1M
These diameters and caliper factors apply only to chain of 1-inch pitch.
For any other pitch, multiply the values given below by the pitch. Caliper Dia. (even teeth) = Pitch Diameter − Roller Dia. Caliper Dia. (odd teeth) = Caliper factor × Pitch − Roller Dia.
No. Teeth |
Pitch Diameter |
Outside Diameter |
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Turned |
Topping Hob Cut |
Caliper Factor |
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9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 |
2.9238 3.2361 3.5495 3.8637 4.1786 4.4940 4.8097 5.1258 5.4422 5.7588 6.0755 6.3924 6.7095 7.0267 7.3439 7.6613 7.9787 8.2962 8.6138 8.9314 9.2491 9.5668 9.8845 10.2023 10.5201 10.8379 11.1558 11.4737 11.7916 12.1095 12.4275 12.7455 13.0635 13.3815 13.6995 14.0175 14.3355 14.6535 14.9717 15.2898 15.6079 15.9260 16.2441 16.5622 16.8803 17.1984 17.5165 17.8347 18.1528 18.4710 18.7892 19.1073 19.4255 19.7437 20.0618 20.3800 20.6982 21.0164 21.3346 21.6528 21.9710 22.2892 22.6074 22.9256 23.2438 23.5620 23.8802 24.1984 24.5166 24.8349 25.1531 25.4713 25.7896 26.1078 26.4260 26.7443 27.0625 27.3807 27.6990 28.0172 28.3354 28.6537 28.9719 29.2902 29.6084 29.9267 30.2449 30.5632 30.8815 31.1997 31.5180 31.8362 32.1545 32.4727 32.7910 33.1093 33.4275 33.7458 34.0641 34.3823 |
3.348 |
3.364 |
2.8794 18.7825 |