Site encryption and secure transactions
We accept PayPal, Mastercard, Visa and more
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 = 16
Radius size: C = 1.6
Tooth width: B1 = 9.1
Tooth width: b1 = 9.0
Tooth width: B2 = 25.5
Tooth width: B3 = 42.1
| No. teeth | Outside dia. de | Pitch dia. dp | Simplex | Duplex | Triplex |
|---|---|---|---|---|---|
| D1* | D2* | D3* | |||
| 8 | 47 | 41.48 | 10 | 12 | 12 |
| 9 | 52.6 | 46.42 | 10 | 12 | 12 |
| 10 | 57.5 | 51.37 | 10 | 12 | 16 |
| 11 | 63 | 56.34 | 10 | 14 | 16 |
| 12 | 68 | 61.34 | 10 | 14 | 16 |
| 13 | 73 | 66.32 | 10 | 14 | 16 |
| 14 | 78 | 71.34 | 10 | 14 | 16 |
| 15 | 83 | 76.36 | 10 | 14 | 16 |
| 16 | 88 | 81.37 | 12 | 16 | 16 |
| 17 | 93 | 86.38 | 12 | 16 | 16 |
| 18 | 98.3 | 91.42 | 12 | 16 | 16 |
| 19 | 103.3 | 96.45 | 12 | 16 | 16 |
| 20 | 108.4 | 101.49 | 12 | 16 | 16 |
| 21 | 113.4 | 106.52 | 12 | 16 | 20 |
| 22 | 118 | 111.55 | 12 | 16 | 20 |
| 23 | 123.5 | 116.58 | 12 | 16 | 20 |
| 24 | 128.3 | 121.62 | 12 | 16 | 20 |
| 25 | 134 | 126.66 | 12 | 16 | 20 |
| 26 | 139 | 131.70 | 16 | 16 | 20 |
| 27 | 144 | 136.75 | 16 | 16 | 20 |
| 28 | 148.7 | 141.78 | 16 | 16 | 20 |
| 29 | 153.8 | 146.83 | 16 | 16 | 20 |
| 30 | 158.8 | 151.87 | 16 | 16 | 20 |
| 31 | 163.9 | 156.92 | 16 | 20 | 20 |
| 32 | 168.9 | 161.95 | 16 | 20 | 20 |
| 33 | 174.5 | 167.00 | 16 | 20 | 20 |
| 34 | 179 | 172.05 | 16 | 20 | 20 |
| 35 | 184.1 | 177.10 | 16 | 20 | 20 |
| 36 | 189.1 | 182.15 | 20 | 20 | 25 |
| 37 | 194.2 | 187.20 | 20 | 20 | 25 |
| 38 | 199.2 | 192.24 | 20 | 20 | 25 |
| 39 | 204.2 | 197.29 | 20 | 20 | 25 |
| 40 | 209.3 | 202.34 | 20 | 20 | 25 |
| 41 | 214.8 | 207.39 | 20 | 20 | 25 |
| 42 | 219.9 | 212.44 | 20 | 20 | 25 |
| 43 | 224.9 | 217.49 | 20 | 20 | 25 |
| 44 | 230 | 222.53 | 20 | 20 | 25 |
| 45 | 235 | 227.58 | 20 | 20 | 25 |
| 46 | 240.1 | 232.63 | 20 | 25 | 25 |
| 47 | 245.1 | 237.68 | 20 | 25 | 25 |
| 48 | 250.2 | 242.73 | 20 | 25 | 25 |
| 49 | 255.2 | 247.78 | 20 | 25 | 25 |
| 50 | 260.3 | 252.82 | 20 | 25 | 25 |
| 51 | 265.3 | 257.87 | 20 | 25 | 25 |
| 52 | 270.4 | 262.92 | 20 | 25 | 25 |
| 53 | 275.4 | 267.97 | 20 | 25 | 25 |
| 54 | 280.5 | 273.03 | 20 | 25 | 25 |
| 55 | 285.5 | 278.08 | 20 | 25 | 25 |
| 56 | 290.6 | 283.13 | 25 | 25 | 25 |
| 57 | 296 | 288.18 | 25 | 25 | 25 |
| 58 | 300.7 | 293.23 | 25 | 25 | 25 |
| 59 | 305.7 | 298.27 | 25 | 25 | 25 |
| 60 | 310.8 | 303.32 | 25 | 25 | 25 |
| 62 | 321.4 | 313.43 | 25 | 25 | 30 |
| 64 | 331.5 | 323.53 | 25 | 25 | 30 |
| 65 | 336.5 | 328.58 | 25 | 25 | 30 |
| 66 | 341.6 | 333.63 | 25 | 25 | 30 |
| 68 | 351.7 | 343.74 | 25 | 25 | 30 |
| 70 | 361.8 | 353.84 | 25 | 25 | 30 |
| 72 | 371.9 | 363.95 | 25 | 25 | 30 |
| 75 | 387.1 | 379.09 | 25 | 25 | 30 |
| 76 | 392.1 | 384.16 | 25 | 25 | 30 |
| 78 | 402.2 | 394.25 | 25 | 25 | 30 |
| 80 | 412.3 | 404.35 | 25 | 30 | 30 |
| 85 | 437.6 | 429.62 | 30 | 30 | 30 |
| 90 | 462.8 | 454.88 | 30 | 30 | 30 |
| 95 | 488.5 | 480.14 | 30 | 30 | 30 |
| 100 | 513.4 | 505.39 | 30 | 30 | 30 |
| 110 | 563.9 | 555.92 | 30 | 30 | 30 |
| 114 | 584.1 | 576.13 | 30 | 30 | 30 |
| 120 | 614.4 | 606.45 | 30 | 30 | 30 |
| 125 | 639.7 | 631.51 | 30 | 30 | 30 |
* Bore Ø H12
All dimensions in mm. Intermediate sizes & special sprockets to drawing up to 1000mm diameter. Standard to ISO/R 606