12B-1-2-3
SPROCKETS 3/4"x7/16"
For Chain Acc. to DIN 8187
ISO/R 606
Z | De | Dp | Simplex | Duplex | Triplex | ||||||
b | d1 | a | b | d2 | a | b | d3 | a | |||
8 9 10 11 12 |
57.6 62.0 69.0 75.0 81.5 |
49.78 55.70 61.64 67.61 73.61 |
31 37 42 46 52 |
12 12 12 14 14 |
25 25 25 30 30 |
31 37 42 47 53 |
12 12 12 16 16 |
45 45 45 50 50 |
31 37 42 47 53 |
16 16 16 20 20 |
70 70 70 70 70 |
13 14 15 16 17 |
87.5 93.6 99.8 105.5 111.5 |
79.59 85.51 91.63 97.65 103.67 |
58 64 70 75 80 |
14 14 14 16 16 |
35 35 35 35 35 |
59 65 71 77 83 |
16 16 16 20 20 |
50 50 50 50 50 |
59 65 71 77 83 |
20 20 20 20 20 |
70 70 70 70 70 |
18 19 20 21 22 |
118.0 124.2 129.7 136.0 141.8 |
109.71 115.75 121.78 127.82 133.86 |
80 80 80 90 90 |
16 16 16 20 20 |
35 35 35 40 40 |
89 95 100 100 100 |
20 20 20 20 20 |
50 50 50 50 50 |
89 95 100 100 100 |
20 20 20 20 20 |
70 70 70 70 70 |
23 24 25 26 27 |
149.0 153.9 160.0 165.9 172.3 |
139.90 145.94 152.00 158.04 164.09 |
90 90 90 95 95 |
20 20 20 20 20 |
40 40 40 40 40 |
120 120 120 120 120 |
20 20 20 20 20 |
50 50 50 50 50 |
110 110 120 120 120 |
20 20 20 20 20 |
70 70 70 70 70 |
28 29 30 31 32 |
178.0 184.1 190.5 196.3 203.3 |
170.13 176..19 182.25 188.31 194.35 |
95 95 95 95 95 |
20 20 20 20 20 |
40 40 40 40 40 |
120 120 120 120 120 |
20 20 20 20 20 |
50 50 50 50 50 |
120 120 120 130 130 |
20 20 20 25 25 |
70 70 70 70 70 |
33 34 35 36 37 |
209.3 214.6 221.0 226.8 232.9 |
200.40 206.46 212.52 218.58 224.64 |
95 95 95 100 100 |
20 20 20 20 20 |
40 40 40 40 40 |
120 120 120 120 120 |
20 20 20 25 25 |
50 50 50 50 50 |
130 130 130 130 130 |
25 25 25 25 25 |
70 70 70 70 70 |
38 39 40 41 42 |
239.0 245.1 251.3 257.3 264.5 |
230.69 236.75 242.84 248.86 254.92 |
100 100 100 *110 *110 |
20 20 20 20 20 |
40 40 40 56 56 |
120 120 120 *136 *136 |
25 25 25 25 25 |
50 50 50 62 62 |
130 130 130 *140 *140 |
25 25 25 25 25 |
70 70 70 70 70 |
43 44 45 46 47 |
270.5 276.5 282.5 287.9 294.0 |
260.98 267.03 273.09 279.15 285.21 |
*110 |
20 20 20 20 20 |
56 56 56 56 56 |
*136 *136 *136 *136 *136 |
25 25 25 25 25 |
62 62 62 62 62 |
*140 *140 *140 *140 *140 |
25 25 25 25 25 |
70 70 70 70 70 |
48 49 50 51 52 |
300.1 306.2 312.3 318.4 324.5 |
291.27 297.33 303.39 309.45 315.51 |
*110 |
20 20 20 20 20 |
56 56 56 56 56 |
*136 *136 *136 *136 *136 |
25 25 25 25 25 |
62 62 62 62 62 |
*140 *140 *140 *140 *140 |
25 25 25 25 25 |
70 70 70 70 70 |
53 54 55 56 57 |
330.5 336.6 342.7 348.7 355.4 |
321.57 327.53 333.69 339.75 345.81 |
*110 |
20 20 20 20 20 |
56 56 56 56 56 |
*136 *136 *136 *136 *136 |
25 25 25 25 25 |
62 62 62 62 62 |
*140 *140 *140 *140 *140 |
25 25 25 25 25 |
70 70 70 70 70 |
58 59 60 62 64 |
361.5 367.5 373.0 385.1 397.2 |
351.87 357.93 363.99 376.12 388.24 |
*110 |
20 20 20 20 20 |
56 56 56 56 56 |
*136 *136 *136 *136 *136 |
25 25 25 25 25 |
62 62 62 62 63 |
*140 *140 *140 *140 *140 |
25 25 25 25 25 |
70 70 70 70 70 |
65 66 68 70 72 |
403.2 409.3 421.4 433.6 447.0 |
394.3 400.36 412.49 424.61 436.73 |
*110 |
20 20 20 20 20 |
56 56 56 56 56 |
*140 *140 *140 *140 *140 |
25 25 25 25 25 |
63 63 63 63 63 |
*140 *140 *140 *140 *140 |
25 25 25 25 25 |
70 70 70 70 70 |
75 76 78 80 85 |
463.9 469.9 482.1 494.2 524.5 |
454.92 460.98 473.10 485.23 515.54 |
*110 |
20 20 20 20 20 |
56 56 56 56 56 |
*140 *140 *140 *140 *140 |
25 25 25 25 25 |
63 63 63 63 63 |
*140 *140 *140 *140 *140 |
25 25 25 25 25 |
70 70 70 70 70 |
90 95 100 110 114 |
554.8 585.1 615.4 676.1 700.6 |
545.85 576.17 606.48 667.11 691.36 |
*110 |
20 20 20 20 20 |
56 56 56 56 56 |
*140 *140 *140 *140 *140 |
25 25 25 25 25 |
63 63 63 63 63 |
*140 *140 *140 *140 *140 |
25 25 25 25 25 |
70 70 70 70 70 |
120 125 |
736.7 767.0 |
727.74 758.06 |
*110 |
20 20 |
56 56 |
*140 *140 |
25 25 |
63 63 |
*140 *140 |
25 25 |
70 70 |
SPROCKET | mm | CHAIN | mm |
Tooth radius r3 | 26 | Pitch | 25.4 |
Radius width C | 2.5 | Internal width | 17.02 |
Tooth width f | 16.2 | Roller | 15.88 |
Tooth width f1 | 15.8 | ||
Tooth width f2 | 47.7 | ||
Tooth width f3 | 79.6 | ||
Material : C45 *weld-on hub |