1/2 BS (08B) Platewheels 1/2″ x 5/16″ Steel C45

1/2 BS (08B) Platewheels 1/2″ x 5/16″ Steel C45

Tooth radius: r3 = 13
Radius size: C = 1.3
Tooth width: B1 = 7.2
Tooth width: b1 = 7.0
Tooth width: B2 = 21.0
Tooth width: B3 = 34.9

No.
teeth

Outside
dia. de

Pitch
dia. dp

Simplex

Duplex

Triplex

D1*

D2*

D3*

8 37.2 33.18 8 10 10
9 41 37.13 8 10 12
10 45.2 41.10 8 10 12
11 48.7 45.07 10 12 14
12 53 49.07 10 12 14
13 57.4 53.06 10 12 14
14 61.8 57.07 10 12 14
15 65.5 61.09 10 12 14
16 69.5 65.10 10 14 16
17 73.6 69.11 10 14 16
18 77.8 73.14 10 14 16
19 81.7 77.16 10 14 16
20 85.8 81.19 10 14 16
21 89.7 85.22 12 16 20
22 93.8 89.24 12 16 20
23 98.2 93.27 12 16 20
24 101.8 97.29 12 16 20
25 105.8 101.33 12 16 20
26 110 105.36 16 16 20
27 114 109.40 16 16 20
28 118 113.42 16 16 20
29 122 117.46 16 16 20
30 126.1 121.50 16 16 20
31 130.2 125.54 16 16 20
32 134.3 129.56 16 16 20

No.
teeth

Outside
dia. de

Pitch
dia. dp

Simplex

Duplex

Triplex

D1*

D2*

D3*

33 138.4 133.60 16 16 20
34 142.6 137.64 16 16 20
35 146.7 141.68 16 16 20
36 151 145.72 16 20 25
37 154.6 149.76 16 20 25
38 158.6 153.80 16 20 25
39 162.7 157.83 16 20 25
40 166.8 161.87 16 20 25
41 171.4 165.91 20 20 25
42 175.4 169.95 20 20 25
43 179.7 173.99 20 20 25
44 183.8 178.03 20 20 25
45 188 182.07 20 20 25
46 192.1 186.10 20 20 25
47 198.2 190.14 20 20 25
48 200.3 194.18 20 20 25
49 204.3 198.22 20 20 25
50 208.3 202.26 20 20 25
51 212.1 206.30 20 25 25
52 216.1 210.34 20 25 25
53 220.2 214.37 20 25 25
54 224.1 218.43 20 25 25
55 228.1 222.46 20 25 25
56 232.2 226.50 20 25 25
57 236.4 230.54 20 25 25

No.
teeth

Outside
dia. de

Pitch
dia. dp

Simplex

Duplex

Triplex

D1*

D2*

D3*

58 240.5 234.58 20 25 25
59 244.5 238.62 20 25 25
60 248.6 242.66 20 25 25
62 256.9 250.75 25 25 25
64 265.1 258.82 25 25 25
65 269 262.86 25 25 25
66 273 266.90 25 25 25
68 281 274.99 25 25 25
69 285 279.04 25 25 25
70 289 283.07 25 25 25
72 297.2 291.16 25 25 25
75 309.2 303.27 25 25 25
76 313.3 307.33 25 25 25
78 321.4 315.40 25 25 25
80 329.4 323.48 25 25 25
85 349 343.70 25 25 25
90 369.9 363.90 25 25 25
95 390.1 384.11 25 25 25
100 410.3 404.32 25 25 25
110 450.7 444.74 25 25 25
114 466.9 460.90 25 25 25
120 491.2 485.16 25 25 25
125 511.3 505.37 25 25 25

* Bore Ø H1
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