Site encryption and secure transactions
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To mainland UK on orders of £100+
Site encryption and secure transactions
We accept PayPal, Mastercard, Visa and more
To mainland UK on orders of £100+
Tooth radius: r3 = 19
Radius size: C = 2
Tooth width: B1 = 11.1
Tooth width: b1 = 10.8
Tooth width: B2 = 30.3
Tooth width: B3 = 49.8
| No. teeth | Outside dia. de | Pitch dia. dp | Simplex | Duplex | Triplex |
|---|---|---|---|---|---|
| D1* | D2* | D3* | |||
| 8 | 57.6 | 49.78 | 12 | 12 | 16 |
| 9 | 62 | 55.70 | 12 | 12 | 16 |
| 10 | 69 | 61.64 | 12 | 12 | 16 |
| 11 | 75 | 67.61 | 14 | 16 | 20 |
| 12 | 81.5 | 73.61 | 14 | 16 | 20 |
| 13 | 87.5 | 79.59 | 14 | 16 | 20 |
| 14 | 93.6 | 85.61 | 14 | 16 | 20 |
| 15 | 99.8 | 91.63 | 14 | 16 | 20 |
| 16 | 105.5 | 97.65 | 14 | 20 | 20 |
| 17 | 111.5 | 103.67 | 14 | 20 | 20 |
| 18 | 118 | 109.71 | 14 | 20 | 20 |
| 19 | 124.2 | 115.75 | 14 | 20 | 20 |
| 20 | 129.7 | 121.78 | 14 | 20 | 20 |
| 21 | 136 | 127.82 | 16 | 20 | 20 |
| 22 | 141.8 | 133.86 | 16 | 20 | 20 |
| 23 | 149 | 139.90 | 16 | 20 | 20 |
| 24 | 153.9 | 145.94 | 16 | 20 | 20 |
| 25 | 160 | 152.00 | 16 | 20 | 20 |
| 26 | 165.9 | 158.04 | 16 | 20 | 20 |
| 27 | 172.3 | 164.09 | 16 | 20 | 20 |
| 28 | 178 | 170.13 | 16 | 20 | 20 |
| 29 | 184.1 | 176.19 | 16 | 20 | 20 |
| 30 | 190.5 | 182.25 | 16 | 20 | 20 |
| 31 | 196.3 | 188.31 | 20 | 20 | 25 |
| 32 | 203.3 | 194.36 | 20 | 20 | 25 |
| 33 | 209.2 | 200.40 | 20 | 20 | 25 |
| 34 | 214.6 | 206.46 | 20 | 20 | 25 |
| 35 | 221 | 212.52 | 20 | 20 | 25 |
| 36 | 226.8 | 218.58 | 20 | 25 | 25 |
| 37 | 232.9 | 224.64 | 20 | 25 | 25 |
| 38 | 239 | 230.69 | 20 | 25 | 25 |
| 39 | 245.1 | 236.75 | 20 | 25 | 25 |
| 40 | 251.3 | 242.81 | 20 | 25 | 25 |
| 41 | 257.3 | 248.87 | 25 | 25 | 25 |
| 42 | 264.5 | 254.93 | 25 | 25 | 25 |
| 43 | 270.5 | 260.98 | 25 | 25 | 25 |
| 44 | 276.5 | 267.04 | 25 | 25 | 25 |
| 45 | 282.5 | 273.10 | 25 | 25 | 25 |
| 47 | 294 | 285.21 | 25 | 25 | 25 |
| 48 | 300.1 | 291.27 | 25 | 25 | 25 |
| 49 | 306.2 | 297.33 | 25 | 25 | 25 |
| 50 | 312.3 | 303.39 | 25 | 25 | 25 |
| 51 | 318.4 | 309.45 | 25 | 25 | 25 |
| 52 | 324.5 | 315.50 | 25 | 25 | 25 |
| 53 | 330.5 | 321.56 | 25 | 25 | 25 |
| 54 | 336.6 | 327.64 | 25 | 25 | 25 |
| 55 | 342.7 | 333.70 | 25 | 25 | 25 |
| 56 | 348.7 | 339.75 | 25 | 25 | 30 |
| 57 | 355.4 | 345.81 | 25 | 25 | 30 |
| 58 | 361.5 | 351.87 | 25 | 25 | 30 |
| 59 | 367.5 | 357.93 | 25 | 25 | 30 |
| 60 | 373 | 363.99 | 25 | 25 | 30 |
| 62 | 385.1 | 376.12 | 25 | 30 | 30 |
| 64 | 397.2 | 388.24 | 25 | 30 | 30 |
| 65 | 403.2 | 394.29 | 25 | 30 | 30 |
| 66 | 409.3 | 400.35 | 30 | 30 | 30 |
| 68 | 421.4 | 412.49 | 30 | 30 | 30 |
| 70 | 433.6 | 424.60 | 30 | 30 | 30 |
| 72 | 447 | 436.74 | 30 | 30 | 30 |
| 75 | 463.9 | 454.91 | 30 | 30 | 30 |
| 76 | 469.9 | 460.99 | 30 | 30 | 30 |
| 78 | 482.1 | 473.10 | 30 | 30 | 30 |
| 80 | 494.2 | 485.22 | 30 | 30 | 30 |
| 85 | 524.5 | 515.55 | 30 | 30 | 30 |
| 90 | 554.8 | 545.86 | 30 | 30 | 30 |
| 95 | 585.1 | 576.17 | 30 | 30 | 30 |
| 100 | 615.4 | 606.47 | 30 | 30 | 30 |
| 110 | 676.1 | 667.11 | 30 | 30 | 30 |
| 114 | 700.6 | 691.36 | 30 | 30 | 30 |
| 120 | 736.7 | 727.74 | 30 | 30 | 30 |
| 125 | 767 | 758.05 | 30 | 30 | 30 |
* Bore Ø H1
All dimensions in mm. Intermediate sizes & special sprockets to drawing up to 1000mm diameter . Standard: to DIN 8187 ISO/R 606