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 = 32
Radius size: C = 3.5
Tooth width: B1 = 18.5
Tooth width: b1 = 18.2
Tooth width: B2 = 54.6
Tooth width: B3 = 91
| No. teeth |
Outside dia. de |
Pitch dia. dp |
Simplex | Duplex | Triplex | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| dm | D1* | A | dm | D1* | A | dm | D1* | A | |||
| 8 | 98.1 | 82.96 | 53 | 20 | 40 | 53 | 20 | 75 | 53 | 20 | 110 |
| 9 | 108 | 92.84 | 63 | 20 | 40 | 63 | 20 | 75 | 63 | 20 | 110 |
| 10 | 117.9 | 102.74 | 70 | 20 | 40 | 70 | 20 | 75 | 70 | 20 | 110 |
| 11 | 127.8 | 112.68 | 77 | 20 | 45 | 80 | 20 | 80 | 80 | 20 | 115 |
| 12 | 137.8 | 122.68 | 88 | 20 | 45 | 90 | 20 | 80 | 90 | 20 | 115 |
| 13 | 147.8 | 132.65 | 98 | 20 | 45 | 100 | 20 | 80 | 100 | 20 | 115 |
| 14 | 157.8 | 142.68 | 108 | 20 | 45 | 110 | 20 | 80 | 110 | 20 | 115 |
| 15 | 167.9 | 152.72 | 118 | 20 | 45 | 120 | 20 | 80 | 120 | 20 | 115 |
| 16 | 177.9 | 162.75 | 120 | 25 | 50 | 120 | 25 | 80 | 120 | 25 | 11 |
| 17 | 187.9 | 172.78 | 120 | 25 | 50 | 120 | 25 | 80 | 120 | 25 | 115 |
| 18 | 198 | 182.85 | 120 | 25 | 50 | 120 | 25 | 80 | 120 | 25 | 115 |
| 19 | 208.1 | 192.91 | 120 | 25 | 50 | 120 | 25 | 80 | 120 | 25 | 115 |
| 20 | 218.1 | 202.98 | 120 | 25 | 50 | 120 | 25 | 80 | 120 | 25 | 115 |
| 21 | 228.2 | 213.04 | 140 | 25 | 55 | 140 | 25 | 80 | 140 | 25 | 115 |
| 22 | 238.3 | 223.11 | 140 | 25 | 55 | 140 | 25 | 80 | 140 | 25 | 115 |
| 23 | 248.3 | 233.17 | 140 | 25 | 55 | 140 | 25 | 80 | 140 | 25 | 115 |
| 24 | 258.4 | 243.23 | 140 | 25 | 55 | 140 | 25 | 80 | 140 | 25 | 115 |
| 25 | 268.5 | 253.33 | 140 | 25 | 55 | 140 | 25 | 80 | 140 | 25 | 115 |
| 26 | 278.6 | 263.40 | 150 | 25 | 55 | 150 | 25 | 80 | 150 | 25 | 115 |
| 27 | 288.6 | 273.48 | 150 | 25 | 55 | 150 | 25 | 80 | 150 | 25 | 115 |
| 28 | 298.7 | 283.56 | 150 | 25 | 55 | 150 | 25 | 80 | 150 | 25 | 115 |
| 29 | 308.8 | 293.65 | 150 | 25 | 55 | 150 | 25 | 80 | 150 | 25 | 115 |
| 30 | 318.9 | 303.75 | 150 | 25 | 55 | 150 | 25 | 80 | 150 | 25 | 115 |
| 31 | 329 | 313.85 | 150 | 25 | 55 | 150 | 25 | 80 | 150 | 30 | 115 |
| 32 | 339.1 | 323.91 | 150 | 25 | 55 | 150 | 25 | 80 | 150 | 30 | 115 |
| 33 | 349.2 | 334.01 | 150 | 25 | 55 | 150 | 25 | 80 | 150 | 30 | 115 |
| 34 | 359.3 | 344.10 | 150 | 25 | 55 | 150 | 25 | 80 | 150 | 30 | 115 |
| 35 | 369.4 | 354.20 | 150 | 25 | 55 | 150 | 25 | 80 | 150 | 30 | 115 |
| 36 | 379.5 | 364.30 | 150 | 25 | 55 | 150 | 30 | 80 | 150 | 30 | 115 |
| 37 | 389.5 | 374.39 | 150 | 25 | 55 | 150 | 30 | 80 | 150 | 30 | 115 |
| 38 | 399.6 | 384.49 | 150 | 25 | 55 | 150 | 30 | 80 | 150 | 30 | 115 |
| 39 | 409.7 | 394.59 | 150 | 25 | 55 | 150 | 30 | 80 | 150 | 30 | 115 |
| 40 | 419.8 | 404.66 | 150 | 25 | 55 | 150 | 30 | 80 | 150 | 30 | 115 |
* Bore Ø H12
All dimensions in mm. Intermediate sizes & special sprockets to drawing up to 1000mm diameter. Standard to ISO/R 606
| Cast Iron Sprockets (20B) 1 1/4″ x 3/4″ (British Standard) to ISO/R 606 |
|---|
| No. teeth | de | dp | Simplex | Duplex | Triplex | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| dm | D1* | A | dm | D1* | A | dm | D1* | A | |||
| 30 | 318.9 | 303.75 | 115 | 34 | 70 | 130 | 39 | 80 | – | – | – |
| 38 | 399.6 | 384.49 | 125 | 35 | 70 | 140 | 44 | 90 | 180 | 56 | 110 |
| 45 | 470.3 | 455.17 | 125 | 35 | 70 | 140 | 44 | 90 | – | – | – |
| 57 | 591.5 | 576.36 | 135 | 40 | 80 | 160 | 50 | 100 | 180 | 60 | 125 |
| **76 | 783.5 | 768.32 | 140 | 40 | 90 | 180 | 50 | 100 | – | – | – |
| Tooth radius: r3 = 32 Radius size: C = 3.5 Tooth width: B1 = 18.5 |
Tooth width: b1 = 18.2 Tooth width: B2 = 54.6 Tooth width: B3 = 91.0 |
** Simplex sprockets with rim reinforcement on both sides
*Bore Ø H12
All dimensions in mm. Intermediate sizes & special sprockets to drawing up to 1000mm diameter. Standard to ISO/R 606