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ASA40SR21 21 Tooth ASA Simplex Pilot Bore Sprocket


£13.08


21 Tooth Simplex Sprockets
American Standard
1/2" x 5/16"
Steel C45, UNI7845

Tooth Radius r3 = 13.5

Radius size C = 1.6

Tooth width B1 = 7.4

All dimensions in mm

Intermediate sizes & special platewheels to drawing

Standard : to DIN 8188 - ISO/R 606 - ANSI B29.1

No. Teeth Outside Diam. Pitch Diam. Simplex
Dm d1 A
10 47.66 41.10 26 10 25
13 59.63 53.07 35 10 28
14 63.63 57.07 35 10 28
15 67.64 61.08 46 10 28
16 71.66 65.1 48 10 28
17 75.68 69.12 48 10 28
18 79.70 73.14 58 12 28
19 83.72 77.16 60 12 28
20 87.74 81.18 60 12 28
21 91.77 85.21 65 12 28
22 95.80 89.24 65 12 28
23 99.83 93.27 65 12 28
24 103.86 97.30 70 14 28
25 107.89 101.33 70 14 28
26 111.92 105.36 70 14 28
27 115.96 109.40 70 16 30
28 119.99 113.43 70 16 30
29 124.46 117.46 80 15 30
30 128.06 121.50 80 16 30
32 136.13 129.57 80 16 30
36 152.28 145.72 90 16 30
38 160.35 153.79 90 16 35
40 168.43 161.87 90 16 35






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