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6mm Steel Chain Sprockets

High quality 6mm British Standard pitch sprockets in the most popular sizes.

These sprockets are supplied with a pilot bore that can be machined to a larger accurate diameter (subject to boss size) although many users find the pilot bore quite acceptable. Using our 'Custom Machining' service, we can not only bore out these sprockets but also drill and tap for set (grub) screw fixing. See the 'Custom Machining' tab with each product for more information.

Nominal tooth width: 2.8mm
Boss width: 7.5 to 12mm depending on sprocket size

04B (04-1) Pitch 6mm Bore size is subject to change from table below, if bore size is critical then select 'Custom Bore Size' with bore required when making purchase.
Overall Width 'A'  See Below
Tooth Width 'B1' 2.8mm
Teeth Diameter 'de' PCD Ø 'dp' Boss Ø dm Bore Ø 'D1' Overall Width
Teeth Diameter 'de' PCD Ø 'dp' Boss Ø dm Bore Ø 'D1' Overall Width
8 18 15.67 10 5 10
26 52.1 49.76 30 8 15
9 19.9 17.54 12 5 10
27 54 51.67 30 8 15
10 21.7 19.42 13 6 10
28 55.9 53.58 30 8 15
11 23.6 21.30 14 6 10
29 57.8 55.5 30 8 15
12 25.4 23.18 16 6 10
30 59.8 57.42 30 8 15
13 27.3 25.05 18 8 10
31 61.7 59.31 30 8 15
14 29.2 26.96 20 8 10
32 63.6 61.21 30 8 15
15 31 28.86 20 8 10
33 65.5 63.11 30 8 15
16 33 30.76 20 8 13
34 67.4 65.02 30 8 15
17 35 32.65 20 8 13
35 69.3 66.93 30 8 15
18 36.9 34.55 20 8 13
36 71.2 68.84 30 8 15
19 38.8 36.44 20 8 13
37 73.1 70.75 30 8 15
20 40.7 38.34 20 8 13
38 75 72.66 30 8 15
21 42.6 40.25 25 8 13
40 78.9 76.47 30 8 15
23 46.4 44.06 25 8 13
45 88.5 86.01 40 10 16
24 48.3 45.96 25 8 13
57 111.4 108.93 50 12 20
25 50.2 47.87 25 8 13
76 147.6 145.19 60 12 20

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