BS (04-1) Sprockets – 6 x 2.8mm Steel C45, UN17845

BS (04-1) Sprockets – 6 x 2.8mm Steel C45, UN17845

Tooth radius: r3 = 6
Radius size: C = 0.7
Tooth width: B1 = 2.6
Type B for 57 & 76 teeth only, dimension h = 4mm

No. teeth

Outside dia. de

Pitch dia. dp

Boss dia.

Bore D1*

Overall width A

8 18.0 15.67 9.8 5 10
9 19.9 17.54 11.5 5 10
10 21.7 19.42 13 6 10
11 23.6 21.30 14 6 10
12 25.4 23.18 16 6 10
13 27.3 25.05 18 8 10
14 29.2 26.96 20 8 10
15 31.0 28.86 20 8 10
16 33.0 30.76 20 8 13
17 35.0 32.65 20 8 13
18 36.9 34.55 20 8 13
19 38.8 36.44 20 8 13
20 40.7 38.34 20 8 13
21 42.6 40.25 25 8 13
22 44.5 42.16 25 8 13
23 46.4 44.06 25 8 13
24 48.3 45.96 25 8 13
25 50.2 47.87 25 8 13
26 52.1 49.76 30 8 15

No. teeth

Outside dia. de

Pitch dia. dp

Boss dia.

Bore D1*

Overall width A

27 54.0 51.67 30 8 15
28 55.9 53.58 30 8 15
29 57.8 55.50 30 8 15
30 59.8 57.42 30 8 15
31 61.7 59.31 30 8 15
32 63.6 61.21 30 8 15
33 65.5 63.11 30 8 15
34 67.4 65.02 30 8 15
35 69.3 66.93 30 8 15
36 71.2 68.84 30 8 15
37 73.1 70.75 30 8 15
38 75.0 72.66 30 8 15
39 76.9 74.56 30 8 15
40 78.9 76.47 30 8 15
45 88.5 86.01 40 10 16
50 98.0 95.55 50 12 20
57 111.4 108.93 50 12 20
76 147.6 145.19 80 16 20

* Bore Ø H12All dimensions in mm. Intermediate sizes & special sprockets to drawing up to 1000mm diameter.

Available from stock

Special order – typically 7-10 days