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BS (083-1) Sprockets – 1/2

BS (083-1) Sprockets – 1/2

Tooth radius: r3 = 13
Radius size: C = 1.3
Tooth width: B1 = 4.5
From 31 teeth dimension h = 5mm

No.
teeth

Outside
dia de

Pitch
dia. dp

Boss
dia.

Bore
D1*

Overall
width A

8 38.5 33.18 21 8 14
9 41.5 37.13 25 8 14
10 46.2 41.10 28 8 14
11 49.6 45.07 31 8 16
12 53.9 49.07 35 8 16
13 58.4 53.06 39 8 16
14 62.8 57.07 43 8 16
15 66.8 61.09 47 8 16
16 70.9 65.10 50 10 18
17 74.9 69.11 50 10 18
18 78.9 73.14 50 10 18
19 82.9 77.16 50 10 18
20 86.9 81.19 50 10 18
21 91 85.22 60 12 20
22 95 89.24 60 12 20
23 99 93.27 60 12 20
24 103 97.29 60 12 20

No.
teeth

Outside
dia de

Pitch
dia. dp

Boss
dia.

Bore
D1*

Overall
width A

25 107.1 101.33 60 12 20
26 111.2 105.36 70 16 20
27 115.4 109.40 70 16 20
28 119.4 113.42 70 16 20
29 123.4 117.46 70 16 20
30 127.5 121.50 70 16 20
31 131.5 125.54 70 16 20
32 135.5 129.56 70 16 20
33 139.6 133.60 70 16 20
34 143.6 137.64 70 16 20
35 147.6 141.68 70 16 20
36 151.7 145.72 70 16 25
37 155.7 149.76 70 16 25
38 159.8 153.80 70 16 25
39 163.8 157.83 70 16 25
40 167.8 161.87 70 16 25

* Bore Ø H12
All dimensions in mm. Intermediate sizes & special sprockets to drawing up to 1000mm diameter. Standard: to DIN 8187 ISO/R 606

Available from stock
Special order – typically 7-10 days

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