MARTIN SPROCKET Simplex Stock Bore A Type Metric Roller Chain Sprockets, 12B-1 Chain Number
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| Style | Model | Pitch Dia. | Outside Dia. | Number Of Teeth | Length Through Bore | Pitch | Bore Type | Price | |
|---|---|---|---|---|---|---|---|---|---|
| A | 12A11 | 67.617 mm | 79.365 mm | - | 35 mm | 19.05 mm | - | €90.71 | |
| A | 12A12 | 73.604 mm | 85.351 mm | 12 | 35 mm | 19.05 mm | - | €92.34 | |
| A | 12A13 | 79.602 mm | 91.349 mm | 13 | 35 mm | 19.05 mm | - | €89.84 | |
| A | 12A14 | 85.61 mm | 97.357 mm | 14 | 35 mm | 19.05 mm | - | €93.62 | |
| A | 12A15 | 91.625 mm | 103.373 mm | 15 | 11.1 mm | 19.05 mm | - | €97.15 | |
| A | 12A16 | 97.647 mm | 109.395 mm | 16 | 35 mm | 19.05 mm | - | €97.07 | |
| A | 12A17 | 103.674 mm | 115.421 mm | 17 | 11.1 mm | 19.05 mm | - | €100.73 | |
| A | 12A18 | 109.705 mm | 121.452 mm | 18 | 35 mm | 19.05 mm | - | €103.67 | |
| A | 12A19 | 115.739 mm | 127.486 mm | 19 | 35 mm | 19.05 mm | - | €107.34 | |
| A | 12A20 | 121.776 mm | 133.524 mm | - | 35 mm | 19.05 mm | - | €111.00 | |
| A | 12A21 | 127.816 mm | 139.564 mm | 21 | 40 mm | 19.05 mm | - | €113.93 | |
| A | 12A22 | 133.858 mm | 145.606 mm | 22 | 40 mm | 19.05 mm | - | €110.22 | |
| A | 12A23 | 139.902 mm | 151.65 mm | 23 | 11.1 mm | 19.05 mm | - | €113.67 | |
| A | 12A24 | 145.948 mm | 157.695 mm | 24 | 40 mm | 19.05 mm | - | €117.07 | |
| B | 12A25 | 151.995 mm | 163.742 mm | - | 40 mm | 19.05 mm | - | €119.84 | |
| C | 12A26 | 158.043 mm | 169.791 mm | - | 40 mm | 19.05 mm | - | €123.26 | |
| D | 12A27 | 164.093 mm | 175.84 mm | 27 | 40 mm | 19.05 mm | - | €127.59 | |
| E | 12A28 | 170.143 mm | 181.891 mm | 28 | 40 mm | 19.05 mm | - | €121.80 | |
| F | 12A30 | 182.247 mm | 193.995 mm | 30 | 40 mm | 19.05 mm | - | €130.86 | |
| G | 12A31 | 188.3 mm | 200.048 mm | - | 40 mm | 19.05 mm | - | €138.18 | |
| H | 12A32 | 194.354 mm | 206.101 mm | 32 | 40 mm | 19.05 mm | - | €120.12 | |
| I | 12A33 | 200.408 mm | 212.156 mm | - | 40 mm | 19.05 mm | - | €150.03 | |
| J | 12A34 | 206.463 mm | 218.21 mm | 34 | 40 mm | 19.05 mm | - | €152.16 | |
| K | 12A35 | 212.518 mm | 224.266 mm | - | 40 mm | 19.05 mm | - | €153.25 | |
| L | 12A36 | 218.574 mm | 230.322 mm | 36 | 40 mm | 19.05 mm | - | €135.60 | |
| M | 12A37 | 224.631 mm | 236.378 mm | - | 40 mm | 19.05 mm | - | €168.52 | |
| N | 12A38 | 230.687 mm | 242.435 mm | 38 | 40 mm | 19.05 mm | - | €170.46 | |
| O | 12A39 | 236.744 mm | 248.492 mm | - | 40 mm | 19.05 mm | - | €171.34 | |
| P | 12A40 | 242.802 mm | 254.549 mm | - | 11.1 mm | 19.05 mm | - | €148.69 | |
| Q | 12A41 | 248.859 mm | 260.607 mm | - | 40 mm | 19.05 mm | - | €180.36 | |
| R | 12A42 | 254.917 mm | 266.665 mm | 42 | 40 mm | 19.05 mm | - | €156.42 | |
| S | 12A43 | 260.976 mm | 272.723 mm | - | 40 mm | 19.05 mm | - | €188.53 | |
| T | 12A44 | 267.034 mm | 278.782 mm | - | 40 mm | 19.05 mm | - | €166.59 | |
| U | 12A45 | 273.093 mm | 284.84 mm | - | 40 mm | 19.05 mm | - | €169.35 | |
| V | 12A46 | 279.152 mm | 290.899 mm | - | 40 mm | 19.05 mm | Stock Bore | €203.38 | |
| W | 12A47 | 285.211 mm | 296.959 mm | - | 40 mm | 19.05 mm | - | €209.85 | |
| X | 12A48 | 291.27 mm | 303.018 mm | - | 40 mm | 19.05 mm | - | €182.07 | |
| Y | 12A54 | 327.63 mm | 339.378 mm | - | 45 mm | 19.05 mm | - | €221.03 | |
| Z | 12A57 | 345.812 mm | 357.559 mm | - | 45 mm | 19.05 mm | - | €268.79 | |
| A1 | 12A65 | 394.301 mm | 406.048 mm | - | 45 mm | 19.05 mm | - | €356.96 | |
| B1 | 12A70 | 424.609 mm | 436.356 mm | 70 | 45 mm | 19.05 mm | - | €397.38 | |
| C1 | 12A72 | 436.732 mm | 448.48 mm | - | 50 mm | 19.05 mm | - | €419.13 | |
| D1 | 12A76 | 460.98 mm | 472.728 mm | - | 50 mm | 19.05 mm | - | €496.78 | |
| E1 | 12A80 | 485.229 mm | 496.976 mm | 80 | 50 mm | 19.05 mm | - | €509.89 | |
| F1 | 12A84 | 509.478 mm | 521.226 mm | 84 | 50 mm | 19.05 mm | - | €587.56 | |
| G1 | 12A95 | 576.166 mm | 587.914 mm | - | 55 mm | 19.05 mm | - | €738.27 | |
| H1 | 12A96 | 582.229 mm | 593.977 mm | - | 55 mm | 19.05 mm | - | €751.91 | |
| I1 | 12A114 | 691.361 mm | 703.109 mm | - | 55 mm | 19.05 mm | - | €875.10 |
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