37.5°外花键大径基本尺寸(GB/T3478.1-1995)(图文教程)

Dee＝m(Z+0.9)

齿数 Z

模 数

0.5

(0.75)

1

(1.25)

1.5

(1.75)

2

2.5

3

(4)

5

(6)

(8)

10

10

5.45

8.18

10.9

13.62

16.35

19.07

21.8

27.25

32.7

43.6

54.5

65.4

87.2

109

11

5.95

8.93

11.9

14.87

17.85

20.82

23.8

29.75

35.7

47.6

59.5

71.4

95.2

119

12

6.45

9.68

12.9

16.12

19.35

22.57

25.8

32.25

38.7

51.6

64.5

77.4

103.2

129

13

6.95

10.43

13.9

17.37

20.85

24.32

27.8

34.75

41.7

55.6

69.5

83.4

111.2

139

14

7.45

11.18

14.9

18.62

22.35

26.07

29.8

37.25

44.7

59.6

74.5

89.4

119.2

149

15

7.95

11.93

15.9

19.87

23.85

27.82

31.8

39.75

47.7

63.6

79.5

95.4

127.2

159

16

8.45

12.67

16.9

21.12

25.35

29.57

33.8

42.25

50.7

67.6

84.5

101.4

135.2

169

17

8.95

13.42

17.9

22.37

26.85

31.32

35.8

44.75

53.7

71.6

89.5

107.4

143.2

179

18

9.45

14.17

18.9

23.62

28.35

33.07

37.8

47.25

56.7

75.6

94.5

113.4

151.2

189

19

9.95

14.92

19.9

24.87

29.85

34.82

39.8

49.75

59.7

79.6

99.5

119.4

159.2

199

20

10.45

15.67

20.9

26.12

31.35

36.57

41.8

52.25

62.7

83.6

104.5

125.4

167.2

209

21

10.95

16.43

21.9

27.37

32.85

38.32

43.8

54.75

65.7

87.6

109.5

131.4

175.2

219

22

11.45

17.18

22.9

28.62

34.35

40.07

45.8

57.25

68.7

91.6

114.5

137.4

183.2

229

23

11.95

17.93

23.9

29.87

35.85

41.82

47.8

59.75

71.7

95.6

119.5

143.4

191.2

239

24

12.45

18.68

24.9

31.12

37.35

43.57

49.8

62.25

74.7

99.6

124.5

149.4

199.2

249

25

12.95

19.43

25.9

32.37

38.85

45.32

51.8

64.75

77.7

103.6

129.5

155.4

207.2

259

26

13.45

20.18

26.9

33.62

40.35

47.07

53.8

67.25

80.7

107.6

134.5

161.4

215.2

269

27

13.95

20.93

27.9

34.87

41.85

48.82

55.8

69.75

83.7

111.6

139.5

167.4

223.2

279

28

14.45

21.68

28.9

36.12

43.35

50.57

57.8

72.25

86.7

115.6

144.5

173.4

231.2

289

29

14.95

22.43

29.9

37.37

44.85

52.32

59.8

74.75

89.7

119.6

149.5

179.4

239.2

299

30

15.45

23.18

30.9

38.62

46.35

54.07

61.8

77.25

92.7

123.6

154.5

185.4

247.2

309

31

15.95

23.93

31.9

39.87

47.85

55.82

63.8

79.75

95.7

127.6

159.5

191.4

255.2

319

32

16.45

24.68

32.9

41.12

49.35

57.57

65.8

82.25

98.7

131.6

164.5

197.4

263.2

329

33

16.95

25.43

33.9

42.37

50.85

59.32

67.8

84.75

101.7

135.6

169.5

203.4

271.2

339

34

17.45

26.18

34.9

43.62

52.35

61.07

69.8

87.25

104.7

139.6

174.5

209.4

279.2

349

35

17.95

26.93

35.9

44.87

53.85

62.82

71.8

89.75

107.7

143.6

179.5

215.4

287.2

359

36

18.45

27.68

36.9

46.12

55.35

64.58

73.8

92.25

110.7

147.6

184.5

221.4

295.2

369

37

18.95

28.43

37.9

47.37

56.85

66.33

75.8

94.75

113.7

151.6

189.5

227.4

303.2

379

38

19.45

29.18

38.9

48.62

58.35

68.08

77.8

97.25

116.7

155.6

194.5

233.4

311.2

389

39

19.95

29.93

39.9

49.87

59.85

69.83

79.8

99.75

119.7

159.6

199.5

239.4

319.2

399

40

20.45

30.68

40.9

51.12

61.35

71.58

81.8

102.25

122.7

163.6

204.5

245.4

327.2

409

41

20.95

31.43

41.9

52.37

62.85

73.33

83.8

104.75

125.7

167.6

209.5

251.4

335.2

419

42

21.45

32.17

42.9

53.62

64.35

75.08

85.8

107.25

128.7

171.6

214.5

257.4

343.2

429

43

21.95

32.92

43.9

54.87

65.85

76.83

87.8

109.75

131.7

175.6

219.5

263.4

351.2

439

44

22.45

33.67

44.9

56.12

67.35

78.58

89.8

112.25

134.7

179.6

224.5

269.4

359.2

449

45

22.95

34.42

45.9

57.37

68.85

80.33

91.8

114.75

137.7

183.6

229.5

275.4

367.2

459

46

23.45

35.17

46.9

58.62

70.35

82.08

93.8

117.25

140.7

187.6

234.5

281.4

375.2

469

47

23.95

35.92

47.9

59.87

71.85

83.83

95.8

119.75

143.7

191.6

239.5

287.4

383.2

479

48

24.45

36.67

48.9

61.12

73.35

85.58

97.8

122.25

146.7

195.6

244.5

293.4

391.2

489

49

24.95

37.42

49.9

62.37

74.85

87.33

99.8

124.75

149.7

199.6

249.5

299.4

399.2

499

50

25.45

38.17

50.9

63.62

76.35

89.08

101.8

127.25

152.7

203.6

254.5

305.4

407.2

509

51

25.95

38.92

51.9

64.87

77.85

90.83

103.8

129.75

155.7

207.6

259.5

311.4

415.2

519

52

26.45

39.67

52.9

66.12

79.35

92.58

105.8

132.25

158.7

211.6

264.5

317.4

423.2

529

53

26.95

40.42

53.9

67.37

80.85

94.33

107.8

134.75

161.7

215.6

269.5

323.4

431.2

539

54

27.45

41.17

54.9

68.62

82.35

96.08

109.8

137.25

164.7

219.6

274.5

329.4

439.2

549

55

27.95

41.92

55.9

69.87

83.85

97.83

111.8

139.75

167.7

223.6

279.5

335.4

447.2

559