Sprockets standard DIN 8187 simplex 3/4" x 7/16"

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Technical info
  • Hub bore, keyway and tapped hole are optional
  • Recommended maximum bore: D3 x 0.6

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  • More than 500.000 products
Product
Unit

Type

Chain size code

Number of teeth

Pitch diameter

D1

Outside diameter

D2

Teeth width

Width

B

Hub type

Hub diameter

D3

Bore diameter

B0

Bore

Material

Each
Simplex
12 B-1
8
49.78 mm
58 mm
11.1 mm
30 mm
Hub one side
31 mm
12 mm
Yes
Steel C45
Each
Simplex
12 B-1
9
55.7 mm
63.9 mm
11.1 mm
30 mm
Hub one side
37 mm
12 mm
Yes
Steel C45
Each
Simplex
12 B-1
12
73.6 mm
81.8 mm
11.1 mm
35 mm
Hub one side
52 mm
14 mm
Yes
Steel C45
Each
Simplex
12 B-1
13
79.59 mm
87.8 mm
11.1 mm
35 mm
Hub one side
58 mm
16 mm
Yes
Steel C45
Each
Simplex
12 B-1
14
85.61 mm
93.8 mm
11.1 mm
35 mm
Hub one side
64 mm
16 mm
Yes
Steel C45
Each
Simplex
12 B-1
15
91.63 mm
99.8 mm
11.1 mm
35 mm
Hub one side
70 mm
16 mm
Yes
Steel C45
Each
Simplex
12 B-1
17
103.67 mm
111.9 mm
11.1 mm
35 mm
Hub one side
80 mm
16 mm
Yes
Steel C45
Each
Simplex
12 B-1
18
109.71 mm
117.9 mm
11.1 mm
35 mm
Hub one side
80 mm
16 mm
Yes
Steel C45
Each
Simplex
12 B-1
19
115.75 mm
123.9 mm
11.1 mm
35 mm
Hub one side
80 mm
16 mm
Yes
Steel C45
Each
Simplex
12 B-1
21
127.82 mm
136 mm
11.1 mm
40 mm
Hub one side
90 mm
20 mm
Yes
Steel C45
Each
Simplex
12 B-1
24
145.94 mm
154.1 mm
11.1 mm
40 mm
Hub one side
90 mm
20 mm
Yes
Steel C45
Each
Simplex
12 B-1
27
164.09 mm
172.3 mm
11.1 mm
40 mm
Hub one side
95 mm
20 mm
Yes
Steel C45
Each
Simplex
12 B-1
28
170.13 mm
178.3 mm
11.1 mm
40 mm
Hub one side
95 mm
20 mm
Yes
Steel C45
Each
Simplex
12 B-1
34
206.46 mm
214.6 mm
11.1 mm
40 mm
Hub one side
95 mm
20 mm
Yes
Steel C45
Each
Simplex
12 B-1
38
230.69 mm
238.9 mm
11.1 mm
40 mm
Hub one side
100 mm
20 mm
Yes
Steel C45
Each
Simplex
12 B-1
40
242.81 mm
251 mm
11.1 mm
40 mm
Hub one side
100 mm
20 mm
Yes
Steel C45
Each
Simplex
12 B-1
45
273.1 mm
283.2 mm
11.1 mm
56 mm
Hub one side
110 mm
25 mm
Yes
Steel C45