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European Pattern Steel detachable sprockets

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European Pattern Steel detachable sprockets
fig. 22.12

Table 22.21 Pitch Diameters Dp

Number
of teeth

Chain Number

55

57

62

72 1/2

74

78

103

mm

6

83.4

118

83.4

84.4

121.2

134.2

157

7

96.1

136

96.1

97.3

139.7

154.6

180.9

8

109

154.2

109

110.3

158.4

175.3

205.1

9

121.9

172.5

121.9

123.4

177.2

196.2

229.5

10

134.9

190.9

134.9

136.6

196.1

217.1

254

11

148

209.4

148

149.8

215.1

238.2

278.6

12

161.1

228

161.1

163

234.1

259.3

303.3

13

174.2

246.5

174.2

176.3

253.2

280.4

328

14

187.4

265.1

187.4

189.6

272.3

301.5

352.8

15

200.6

283.8

200.6

203

291.5

322.7

377.6

16

213.7

302.4

213.7

216.3

310.6

365.2

402.4

17

226.9

321.1

226.9

229.7

329.8

365.2

427.2

18

240.1

339.8

240.1

243

349

386.4

452.1

19

253.3

358.5

253.3

256.4

368.2

407.7

476.9

20

266.6

377.2

266.6

269.8

387.4

428.9

501.8

21

279.8

395.9

279.8

283.1

406.6

450.2

526.7

22

293

414.6

293

296.5

425.8

471.5

551.6

23

306.2

433.3

306.2

309.9

445

492.8

576.5

24

319.5

452

319.5

323.3

464.3

514.1

601.4

25

332.7

470.7

332.7

336.7

483.5

535.4

626.3

26

346

489.5

346

350.1

502.8

556.7

651.3

27

359.2

508.2

359.2

363.5

522

578

676.2

28

372.4

527

372.4

376.9

541.2

599.3

701.1

29

385.7

545.7

385.7

390.3

560.5

620.6

726.1

30

398.9

564.4

398.9

403.7

579.7

641.9

751

Table 22.22 Tooth Form

Chain
Number

Dp

De

Se

Sj

Sx

mm

55

10.5

21

16-12

16.5

9

57

10.5

21

28-20

24

14

62

10.5

21

16-12

20.5

12

72 1/2

10.5

21

16-12

24

14

74

15.7

32

23-17

28

16

78

12.5

25

30-22

28

16

103

17.7

35

33-24

32

19

HUB DIAMETER
The hub diameter Dm, re shown in the following table.
Hub Length Sm is 15-20 mm less than the hub diameter. Exact details on request.

Table 22.23 Hub Diameter

Chain
Number

Number of teeth

8

10

11

12

14

mm

55

50

60

70

70

80

62

50

60

70

70

80

57

60

75

75

75

75

74

75

75

75

75

80

78

75

75

75

85

80

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