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Machining Services

Our machine shop has also been re-located as part of the business move to Rugby, we anticipate the machines will be operational around mid December. Orders placed which include custom bore sizes and tapped holes will be processed as soon as the machines are spinning again.


6mm Steel Chain Sprockets

High quality 6mm British Standard pitch sprockets in the most popular sizes. Sizes we do not stock at technobots are available through our gearsandsprockets website that offers a far greater range of transmission components.

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

Steel EN8, 080M40/080M46

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

04B Steel Chain Sprocket 6mm - 38T

Part No.: 4804-038

Shipping Weight: 136.00 g.

£6.53 (£7.84 inc tax)
In stock
For dimensions and full product description, see here See the 'Custom Machining' tab for details on different bore sizes, shaft fixing and delivery times. Read More

04B Steel Chain Sprocket 6mm- 40T

Part No.: 4804-040

Shipping Weight: 144.00 g.

£6.38 (£7.66 inc tax)
In stock
For dimensions and full product description, see here See the 'Custom Machining' tab for details on different bore sizes, shaft fixing and delivery times. Read More

 

Just a few of the companies Technobots are an official distributor for:
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