curvic couplingdcb.or.kr/files/design_partner/fileupload/tabsc/포토폴리오_1_1.pdf · 1968,...

Design&Manufacturing

CURVICCOUPLING

www.dkp1.co.kr

Value creating partner DAE KWANG PYEONG

LINE-UP from MCC to 3PCCCharacteristics of CurvicCurvic Coupling was developed by Gleason company from USA in 1942 and was registered for Curvic by the Gleason company.The three basic types of Curvic Couplings are the Fixed Curvic Coupling, the semi-Universal Coupling and the Relating Coupling. The coupling provides a positive drive along with precision centering and high load carrying capacity. The Fixed Curvic Coupling is used extensively in the construction of built-up turbine and compressor rotors for aircraft and industrial gas or steam turbine engines. The Fixed Curvic Coupling is also used today by many major machine tool manufactures for precision indexing mechanisms.In the 4th Japan’s machine tools exhibition in 1968, Curvic Coupling got into sportlight an important element as indexing positioning instrument. By rapid developing of NC and CNC machine tool, Curvic has become representative of high accuracy and super rigidity.

Advantages of CurvicVarious standardized products, the number of 360 teeth!!Selection range has been expanded by producing various standardized products based on the size and the number of teeth. (the number of teeth : 20~360, Outside diameter : Φ30mm~Φ1300mm)

High Rigidity!!High rigidity and impact resistance is achieved by increasing abrasion resistance and rigidity through heat treated Cr-Mo steel.

Precise Self-Aligning!!By teeth mating of convex and concave teeth, precise automatic aligning is realized. As master Curvic Coupling is used n the process of manufacturing, high compatibility is achieved.

High Restoration and Division Accuracy!!It guarantees ±1sec restoration and 5sec remained division of the same teeth position.

Long term quality assurance!!Long term quality assurance is provided by secure quality control of the entire products.

02 l DAE KWANG PYEONG Co.,Ltd.

Curvic Coupling Design & Manufacturing

Whole depth

Clearance

Addendum

Dedendum

Chamfer hight

Tooth thickness

Mating height

Gable angle

Gable height

Picth circle

Pressure angle

Effective tooth

Fillet radius

Shape of teeth

Fig1. View at outside diameter

XConvex Teeth

XConvex Teeth

VConcave Teeth

VI, VOConcave Teeth

2PCC 3PCC

2PCC 3PCCOutside diameter

Number of Teeth

20

24

30

32

36

40

48

60

72

360

* Dimensions may be changed without notice. If you need our product, we may offer specification drawing. (No. of teeth can be changed by mutual agreement.)

*

30 50 63 80 100

120

140

160

180

200

210

250

280

320

360

400

420

450

520

600

700

800

900

1000

1100

1200

1300 110

135

165

200

230

250

270

335

425

540

630

620

Table of product03PCC

360Number of Teeth

250Outside diameter

180Inside diameter

Model No

Model No

48Number of Teeth

320Outside diameter

120Inside diameter

XV2PCC

DAE KWANG PYEONG Co.,Ltd. l 03

NO.Model No

Outsidediameter

Outsidediameterof Teeth

Insidediameter

Numberof teeth

Teeth width

Tooth top from back face

Boss from back face

Stacking distance

Fixed bolt hole Positioning pin hole Withdraw bolt hole

Addendum

AllowableMisalign-ment

Number of hole PCD

Hole diameter

Spot facing hole Number of

pin hole PCD Angleof hole

Hole diameterNumber of

bolt holePCD Tap diameter

Diameter Depth

D1 D2 d1 N F H1 H2 H3 Na P.C.D d2 d3 dh Nb P.C.D K̊ d4 n P.C.D MxP a ±A

1 20030-12XV 30 29 12 20 3 7.30 5.5 14 4 20 M5 - - 2 19 45̊ Φ2 4 20 M5x0.8 0.3 0.27

2 24050-22XV 50 49 22 24 5 10.50 8.0 20 4 34 M5 8.0 6.0 4 32 45̊ Φ2 4 34 M5x0.8 0.5 0.42

3 20063-36XV 63 62 36 20 6 12.80 10.0 24 6 48 M5 8.0 6.8 4 44 30̊ Φ2 6 48 M5x0.8 0.8 0.69

4 24063-36XV 63 62 36 24 6 12.80 10.0 24 6 48 M5 8.0 6.8 4 44 30̊ Φ2 6 48 M5x0.8 0.8 0.69

5 20080-44XV 80 79 44 20 8 15.30 12.0 29 6 60 M8 11.0 8.8 4 55 30̊ Φ2 6 60 M8x1.25 0.8 0.69

6 24080-44XV 80 79 44 24 8 15.30 12.0 29 6 60 M8 11.0 8.8 4 55 30̊ Φ2 6 60 M8x1.25 0.8 0.69

7 20100-40XV 100 98 40 20 9 18.37 14.0 34 6 60 6.6 11.0 6.0 3 60 30̊ 8 2 60 M8x1.25 1.37 1.22

8 30100-40XV 100 98 40 30 7 18.30 14.0 34 6 60 6.6 11.0 6.0 3 60 30̊ 8 2 60 M8x1.25 1.3 1.15

9 24120-60XV 120 118 60 24 8 18.30 14.0 34 6 80 6.6 11.0 6.0 3 80 30̊ 8 2 80 M8x1.25 1.3 1.15

10 30120-60XV 120 118 60 30 7 18.56 14.0 34 6 80 6.6 11.0 6.0 3 80 30̊ 8 2 80 M8x1.25 1.56 1.39

11 32120-60XV 120 118 60 32 11 18.46 14.0 34 6 82 6.6 11.0 6.0 3 82 30̊ 8 2 82 M8x1.25 1.46 1.30

12 24140-80XV 140 138 80 24 9 18.59 14.0 34 6 100 6.6 11.0 6.0 3 100 30̊ 8 2 100 M8x1.25 1.59 1.42

13 36140-80XV 140 138 80 36 11 18.52 14.0 34 6 100 6.6 11.0 6.0 3 100 30̊ 8 2 100 M8x1.25 1.52 1.36

14 40140-80XV 140 138 80 40 11 18.37 14.0 34 6 100 6.6 11.0 6.0 3 100 30̊ 8 2 100 M8x1.25 1.37 1.22

15 24160-100XV 160 158 100 24 9 21.73 16.5 40 8 118 9.0 14.0 8.0 3 118 22.5̊ 10 2 118 M8x1.25 1.73 1.54

16 36160-100XV 160 158 100 36 9 21.73 16.5 40 8 118 9.0 14.0 8.0 3 118 22.5̊ 10 2 118 M8x1.25 1.73 1.54

17 40160-100XV 160 158 100 40 9 21.56 16.5 40 8 118 9.0 14.0 8.0 3 118 22.5̊ 10 2 118 M8x1.25 1.56 1.39

18 24180-120XV 180 178 120 24 9 21.61 16.5 40 8 140 9.0 14.0 8.0 3 140 22.5̊ 8 2 140 M8x1.25 1.61 1.44

19 36180-120XV 180 178 120 36 9 21.37 16.5 40 8 140 9.0 14.0 8.0 3 140 22.5̊ 8 2 140 M8x1.25 1.37 1.22

20 40180-120XV 180 178 120 40 9 21.76 16.5 40 8 140 9.0 14.0 8.0 3 140 22.5̊ 8 2 140 M8x1.25 1.76 1.57

21 24200-120XV 200 198 120 24 9 21.63 16.5 40 8 150 9.0 14.0 8.0 3 150 22.5̊ 8 2 150 M8x1.25 1.63 1.45

22 36200-120XV 200 198 120 36 11 21.52 16.5 40 8 150 9.0 14.0 8.0 3 150 22.5̊ 8 2 150 M8x1.25 1.52 1.36

23 40200-120XV 200 198 120 40 9 21.37 16.5 40 8 150 9.0 14.0 8.0 3 150 22.5̊ 8 2 150 M8x1.25 1.37 1.22

24 72200-120XV 200 198 120 72 9 20.99 16.5 40 8 150 9.0 14.0 8.0 3 150 22.5̊ 8 2 150 M8x1.25 0.99 0.89

25 360200-120XV 200 198 120 360 5 20.20 16.5 40 8 150 9.0 14.0 8.0 3 150 22.5̊ 8 2 150 M8x1.25 0.2 0.17

26 24210-135XV 210 208 135 24 12 21.71 16.5 40 12 165 9.0 14.0 8.0 3 158 15̊ 10 2 165 M8x1.25 1.71 1.53

27 48210-135XV 210 208 135 48 13 21.71 16.5 40 12 165 9.0 14.0 8.0 3 158 15̊ 10 2 165 M8x1.25 1.71 1.53

28 24250-160XV 250 248 160 24 11 21.42 16.5 40 8 195 11.0 17.5 10.0 3 195 22.5̊ 10 2 195 M10x1.50 1.42 1.27

29 40250-160XV 250 248 160 40 13 21.71 16.5 40 8 195 11.0 17.5 10.0 3 195 22.5̊ 10 2 195 M10x1.50 1.71 1.53

30 48250-160XV 250 248 160 48 11 21.42 16.5 40 8 195 11.0 17.5 10.0 3 195 22.5̊ 10 2 195 M10x1.50 1.42 1.27

31 60250-160XV 250 248 160 60 9 21.63 16.5 40 8 195 11.0 17.5 10.0 3 195 22.5̊ 10 2 195 M10x1.50 1.63 1.45

32 72250-160XV 250 248 160 72 11 21.42 16.5 40 8 195 11.0 17.5 10.0 3 195 22.5̊ 10 2 195 M10x1.50 1.42 1.27

33 360250-160XV 250 248 160 360 7 20.30 16.5 40 8 195 11.0 17.5 10.0 3 195 22.5̊ 10 2 195 M10x1.5 0.3 0.27

34 48280-190XV 280 278 190 48 13 21.59 16.5 40 8 222 13.0 20.0 12.0 3 222 22.5̊ 10 2 222 M10x1.50 1.59 1.42

35 60280-190XV 280 278 190 60 11 26.82 21.5 50 10 224 11.0 17.5 10.0 3 224 18̊ 10 2 224 M10x1.50 1.82 1.62

36 72280-190XV 280 278 190 72 11 21.42 16.5 40 8 222 13.0 20.0 12.0 3 222 22.5̊ 10 2 222 M10x1.50 1.42 1.27

Model No

20Number of Teeth

030Outside diameter

12Inside diameter

XV2PCC

* Dimensions may be changed without notice. If you need our product, we may offer specification drawing.

*


Standard Dimension Table of 2PCC

NO.Model No

Outsidediameter


Insidediameter

Numberof teeth

Teeth width


Boss from back face

Stacking distance


Addendum


Number of hole PCD

Hole diameter


pin hole PCD Angleof hole

Hole diameter

Number of


Diameter Depth


37 360280-190XV 280 278 190 360 8 20.35 16.5 40 8 222 13.0 20.0 12.0 3 222 22.5̊ 10 2 222 M10x1.5 0.35 0.30

38 48320-210XV 320 318 210 48 11 30.82 25.5 58 12 258 13.0 20.0 12.0 3 258 15̊ 12 4 258 M12x1.75 1.82 1.62

39 60320-210XV 320 318 210 60 11 30.46 25.5 58 10 258 13.0 20.0 12.0 3 258 18̊ 12 4 258 M12x1.75 1.46 1.30

40 72320-210XV 320 318 210 72 11 30.74 25.5 58 12 258 13.0 20.0 12.0 3 258 15̊ 12 4 258 M12x1.75 1.74 1.55

41 360320-210XV 320 316 210 360 8 29.35 25.5 58 12 258 13.0 20.0 12.0 3 258 15̊ 12 4 258 M12x1.75 0.35 0.30

42 60360-250XV 360 358 250 60 13 30.64 26.0 58 12 300 13.0 20.0 12.0 3 300 15̊ 12 4 300 M12x1.75 1.64 1.46

43 72360-250XV 360 358 250 72 11 30.37 26.0 58 12 300 13.0 20.0 12.0 3 300 15̊ 12 4 300 M12x1.75 1.37 1.22

44 360360-250XV 360 358 250 360 10 29.39 26.0 58 12 300 13.0 20.0 12.0 3 300 15̊ 12 4 300 M12x1.75 0.39 0.35

45 48400-280XV 400 398 280 48 13 31.52 26.0 60 12 335 13.0 20.0 12.0 3 335 15̊ 12 4 335 M12x1.75 1.52 1.36

46 60400-280XV 400 398 280 60 15 31.82 26.0 60 12 335 13.0 20.0 12.0 3 335 15̊ 12 4 335 M12x1.75 1.82 1.62

47 72400-280XV 400 398 280 72 13 31.52 26.0 60 12 335 13.0 20.0 12.0 3 335 15̊ 12 4 335 M12x1.75 1.52 1.36

48 360400-280XV 400 398 280 360 13 30.45 26.0 60 12 335 13.0 20.0 12.0 3 335 15̊ 12 4 335 M12x1.75 0.45 0.39

49 72420-320XV 420 418 320 72 13 31.59 26.0 60 12 360 13.0 20.0 12.0 3 360 15̊ 12 4 360 M12x1.75 1.59 1.42

50 360420-320XV 420 418 320 360 13 30.45 26.0 60 12 360 13.0 20.0 12.0 3 360 15̊ 12 4 360 M12x1.75 0.45 0.39

51 72450-340XV 450 448 340 72 15 31.71 26.0 60 12 387 13.0 20.0 12.0 3 387 15̊ 12 4 387 M12x1.75 1.71 1.53

52 360450-340XV 450 448 340 360 15 30.49 26.0 60 12 387 13.0 20.0 12.0 3 387 15̊ 12 4 387 M12x1.75 0.49 0.42

53 48520-415XV 520 518 415 48 15 31.97 26.0 60 12 450 13.0 20.0 12.0 3 450 15̊ 12 4 450 M12x1.75 1.97 1.76

54 72520-415XV 520 518 415 72 15 31.97 26.0 60 12 450 13.0 20.0 12.0 3 450 15̊ 12 4 450 M12x1.75 1.97 1.76

55 360520-415XV 520 518 415 360 15 30.57 26.0 60 12 450 13.0 20.0 12.0 3 450 15̊ 12 4 450 M12x1.75 0.57 0.49

56 60600-480XV 600 598 480 60 15 36.95 29.0 70 12 530 17.0 26.0 16.0 3 530 15̊ 12 4 530 M12x1.75 1.95 1.74

57 72600-480XV 600 598 480 72 19 37.28 29.0 70 12 530 17.0 26.0 16.0 3 530 15̊ 12 4 530 M12x1.75 2.28 2.04

58 360600-480XV 600 598 480 360 15 35.66 29.0 70 12 530 17.0 26.0 16.0 3 530 15̊ 14 4 530 M12x1.75 0.66 0.57

59 72700-560XV 700 698 560 72 19 36.70 29.0 70 12 610 17.0 26.0 16.0 3 610 15̊ 14 4 610 M12x1.75 1.70 1.50

60 360700-560XV 700 698 560 360 19 35.67 29.0 70 12 610 17.0 26.0 16.0 3 610 15̊ 14 4 610 M12x1.75 0.67 0.58

61 72800-660XV 800 798 660 72 19 39.20 32.0 75 18 710 17.0 26.0 16.0 3 710 10̊ 14 4 710 M12x1.75 1.70 1.50

62 360800-660XV 800 798 660 360 19 38.26 32.0 75 18 710 17.0 26.0 16.0 3 710 10̊ 14 4 710 M12x1.75 0.76 0.68

63 72900-740XV 900 898 740 72 21 41.70 34.5 80 18 800 17.0 26.0 16.0 3 800 10̊ 14 4 800 M12x1.75 1.70 1.50

64 360900-740XV 900 898 740 360 21 40.98 34.5 80 18 800 17.0 26.0 16.0 3 800 10̊ 14 4 800 M12x1.75 0.98 0.88

65 721000-830XV 1000 998 830 72 22 61.70 54.5 120 18 900 17.0 26.0 16.0 4 900 10̊ - 4 900 M12x1.75 1.70 1.50

66 3601000-830XV 1000 998 830 360 22 60.95 54.5 120 18 900 17.0 26.0 16.0 4 900 10̊ - 4 900 M12x1.75 0.95 0.82

67 721100-900XV 1100 1098 900 72 22 66.70 59.5 130 20 980 21.0 32.0 20.0 4 980 9̊ - 4 980 M16x2.00 1.70 1.50

68 3601100-900XV 1100 1098 900 360 22 66.05 59.5 130 20 980 21.0 32.0 20.0 4 980 9̊ - 4 980 M16x2.00 1.05 0.91

69 721200-1000XV 1200 1198 1000 72 22 71.70 64.5 140 20 1,080 21.0 32.0 20.0 4 1,080 9̊ - 4 1,080 M16x2.00 1.70 1.50

70 3601200-1000XV 1200 1198 1000 360 22 71.14 64.5 140 20 1,080 21.0 32.0 20.0 4 1,080 9̊ - 4 1,080 M16x2.00 1.14 0.98

71 721300-1100XV 1300 1298 1100 72 22 76.70 69.5 150 24 1,170 21.0 32.0 20.0 4 1,170 7.5̊ - 4 1,170 M16x2.00 1.70 1.50

72 3601300-1100XV 1300 1298 1100 360 22 76.24 69.5 150 24 1,170 21.0 32.0 20.0 4 1,170 7.5̊ - 4 1,170 M16x2.00 1.24 1.10

Essentials of Build up System in FA Era

Model No

360Number of Teeth

280Outside diameter

190Inside diameter

XV2PCC

Fig2.

* Effective tooth height(a) x 0.75 x 2* Allowable Misalignment(A) = [Addendum(a) x 0.75 x 2 x tan30̊ tan30̊ = 0.57735

* (a) x 0.75 x 2* (a) x 0.75 x 2 x tan30̊ tan30̊ = 0.57735


*



Standard Dimension Table of Curvic Coupling

NO.Model No Division

Outsidediameter


Insidediameter

Numberof teeth

Teeth width


Boss from back face

Stacking distance


Addendum


Number of hole PCD

Hole diameter


pin hole PCD Angle of hole

Hole diameter

Number of


Diameter Depth


101 024110-040V1, X 110 - 40 24 14 16.75 11.5 30 6 60 6.6 11 6.0 3 60 30̊ 2 60 M8x1.25 1.75 1.55

V0 - 170 - 24 - 16.75 11.5 30 8 140 M10 14 8.5 3 140 22.5̊ 2 140 M8x1.25 1.75 1.55

102 030110-040V1, X 110 - 40 30 14 16.4 11.5 30 6 60 6.6 11 6.0 1 60 30̊ 2 60 M8x1.25 1.4 1.26

V0 - 170 - 30 - 16.4 11.5 30 8 140 M10 14 8.5 1 140 22.5̊ 2 140 M8x1.25 1.4 1.26

103 024135-060V1, X 135 - 60 24 18 18.75 13.5 34 6 80 6.6 11 6.0 3 80 30̊ 2 80 M8x1.25 1.75 1.55

V0 - 175 - 24 - 18.75 13.5 34 8 150 M10 14 8.5 3 150 22.5̊ 2 150 M8x1.25 1.75 1.55

104 030135-060V1, X 135 - 60 30 18 18.75 13.5 34 6 80 6.6 11 6.5 1 80 30̊ 2 80 M8x1.25 1.75 1.55

V0 - 175 - 30 - 18.75 13.5 34 8 150 M10 14 8.5 3 150 22.5̊ 2 150 M8x1.25 1.75 1.55

105 024165-080V1, X 165 - 80 24 20 20.75 15.5 38 6 100 6.6 11 6.0 3 100 30̊ 2 100 M8x1.25 1.75 1.55

V0 - 220 - 24 - 20.75 15.5 38 8 195 M12 17.5 10.5 3 195 22.5̊ 2 195 M10x1.50 1.75 1.55

106 030165-080V1, X 165 - 80 30 20 20.75 15.5 38 6 100 6.6 11 6.0 1 100 30̊ 8 2 100 M8x1.25 1.75 1.55

V0 - 220 - 30 - 20.75 15.5 38 8 195 M12 17.5 10.5 3 195 22.5̊ 10 4 195 M10x1.50 1.75 1.55

107 024200-120V1, X 200 - 120 24 20 21.75 16.5 40 8 140 9.0 14 8.0 3 140 22.5̊ 8 2 140 M8x1.25 1.75 1.55

V0 - 255 - 24 - 21.75 16.5 40 10 224 M12 17.5 10.5 3 224 18̊ 10 2 224 M10x1.50 1.75 1.55

108 030200-120V1, X 200 - 120 30 20 21.75 16.5 40 8 140 9.0 14 8.0 3 140 22.5̊ 8 2 140 M8x1.25 1.75 1.55

V0 - 255 - 30 - 21.75 16.5 40 10 224 M12 17.5 10.5 3 224 18̊ 10 2 224 M10x1.50 1.75 1.55

109 024230-135V1, X 230 - 135 24 22 21.75 16.5 40 12 165 9.0 14 8.0 3 165 15̊ 10 2 165 M8x1.25 1.75 1.55

V0 - 290 - 24 - 21.75 16.5 40 12 258 M12 17.5 10.5 3 258 15̊ 12 2 258 M12x1.75 1.75 1.55

110 030230-135V1, X 230 - 135 30 22 21.75 16.5 40 12 165 9.0 14 8.0 3 165 15̊ 10 2 165 M8x1.25 1.75 1.55

V0 - 290 - 30 - 21.75 16.5 40 12 258 M12 17.5 10.5 3 258 15̊ 12 4 258 M12x1.75 1.75 1.55


*


Standard Dimension Table of 3PCCModel No

03PCC

24Number of Teeth

110Outside diameter

040Inside diameter

3PCC built-in, No-lift Index Table

NO.Model No Division

Outsidediameter


Insidediameter

Numberof teeth

Teeth width


Boss from back face

Stacking distance


Addendum


Number of hole PCD

Hole diameter


pin hole PCD Angle of hole

Hole diameter

Number of


Diameter Depth


111 0360250-180V1, X 250 - 180 360 8 20.2 18 40 12 205 11.0 17.5 10.0 3 205 15̊ 2 205 M10x1.5 0.2 0.17

V0 - 300 - 360 8 20.2 18 40 12 270 M12 17.5 10.5 3 270 15̊ 4 270 M12x1.75 0.2 0.17

112 024270-160V1, X 270 - 160 24 24 21.75 16.5 40 8 195 11.0 17.5 10.0 3 195 22.5̊ 2 195 M10x1.50 1.75 1.55

V0 - 330 - 24 - 21.75 16.5 40 12 300 M14 20 12.5 3 300 15̊ 4 300 M12x1.75 1.75 1.55

113 030170-160V1, X 270 - 160 30 24 21.75 16.5 40 8 195 11.0 17.5 10.0 3 195 22.5̊ 2 195 M10x1.50 1.75 1.55

V0 - 330 - 30 - 21.75 16.5 40 12 300 M14 20 12.5 3 300 15̊ 4 300 M12x1.75 1.75 1.55

114 0360270-160V1, X 270 - 160 360 10 20.2 18 40 8 220 11.0 17.5 10.0 3 220 22.5̊ 2 220 M10x1.5 0.2 0.17

V0 - 330 - 360 10 20.2 18 40 12 300 M14 20 12.5 3 300 15̊ 4 300 M12x1.75 0.2 0.17

115 048335-220V1, X 335 - 220 48 24 25.75 18.5 48 12 258 13.0 20 12.0 3 258 15̊ 4 258 M12x1.75 1.75 1.55

V0 - 400 - 48 - 25.75 18.5 48 12 360 13.0 20 12.5 3 360 15̊ 4 360 M12x1.75 1.75 1.55

116 060335-220V1, X 335 - 220 60 24 25.75 18.5 48 12 258 13.0 20 12.0 3 258 15̊ 12 4 258 M12x1.75 1.75 1.55

V0 - 400 - 60 - 25.75 18.5 48 12 360 13.0 20 12.5 3 360 15̊ 12 4 360 M12x1.75 1.75 1.55

117 072335-220V1, X 335 - 220 72 24 25.75 18.5 48 12 258 13.0 20 12.0 3 258 15̊ 12 4 258 M12x1.75 1.75 1.55

V0 - 400 - 72 - 25.75 18.5 48 12 360 13.0 20 12.5 3 360 15̊ 12 4 360 M12x1.75 1.75 1.55

118 0360335-220V1, X 335 - 220 360 14 24.32 18.5 48 12 258 13.0 20 12.0 3 258 15̊ 12 4 258 M12x1.75 0.32 0.27

V0 - 400 - 360 - 24.32 18.5 48 12 360 13.0 20 12.5 3 360 15̊ 12 4 360 M12x1.75 0.32 0.27

119 048425-300V1, X 425 - 300 48 28 26.75 19.5 50 12 335 13.0 20 12.0 3 335 15̊ 12 4 335 M12x1.75 1.75 1.55

V0 - 482 - 48 - 26.75 19.5 50 12 450 13.0 20 12.5 3 450 15̊ 12 4 450 M12x1.75 1.75 1.55

120 060425-300V1, X 425 - 300 60 28 26.75 19.5 50 12 335 13.0 20 12.0 3 335 15̊ 12 4 335 M12x1.75 1.75 1.55

V0 - 482 - 60 - 26.75 19.5 50 12 450 13.0 20 12.5 3 450 15̊ 12 4 450 M12x1.75 1.75 1.55

121 072425-300V1, X 425 - 300 72 28 26.75 19.5 50 12 335 13.0 20 12.0 3 335 15̊ 12 4 335 M12x1.75 1.75 1.55

V0 - 482 - 72 - 26.75 19.5 50 12 450 13.0 20 12.5 3 450 15̊ 12 4 450 M12x1.75 1.75 1.55

122 0360425-300V1, X 425 - 300 360 20 25.42 19.5 50 12 335 13.0 20 12.0 3 335 15̊ 12 4 335 M12x1.75 0.42 0.37

V0 - 482 - 360 - 25.42 19.5 50 12 450 13.0 20 12.5 3 450 15̊ 12 4 450 M12x1.75 0.42 0.37

123 048540-415V1, X 540 - 415 48 32 29.25 22.5 55 12 450 13.0 20 12.0 3 450 15̊ 12 4 450 M12x1.75 1.75 1.55

V0 - 604 - 48 - 29.25 22.5 55 12 570 17.0 26 16.5 3 570 15̊ 12 4 570 M12x1.75 1.75 1.55

124 060540-415V1, X 540 - 415 60 32 29.25 22.5 55 12 450 13.0 20 12.0 3 450 15̊ 12 4 450 M12x1.75 1.75 1.55

V0 - 604 - 60 - 29.25 22.5 55 12 570 17.0 26 16.5 3 570 15̊ 12 4 570 M12x1.75 1.75 1.55

125 072540-415V1, X 540 - 415 72 32 29.25 22.5 55 12 450 13.0 20 12.0 3 450 15̊ 12 4 450 M12x1.75 1.75 1.55

V0 - 604 - 72 - 29.25 22.5 55 12 570 17.0 26 16.5 3 570 15̊ 12 4 570 M12x1.75 1.75 1.55

126 0360540-415V1, X 540 - 415 360 24 28.06 22.5 55 12 450 13.0 20 12.0 3 450 15̊ 12 2 450 M12x1.75 0.56 0.50

V0 - 604 - 360 - 28.06 22.5 55 12 570 17.0 26 16.5 3 570 15̊ 12 2 570 M12x1.75 0.56 0.50

127 072630-490V1, X 630 - 490 72 32 31.75 24.5 60 12 530 17.0 26 14.0 3 530 15̊ 12 4 530 M12x1.75 1.75 1.55

V0 - 700 - 72 - 31.75 24.5 60 18 660 17.0 26 16.5 3 660 10̊ 12 4 660 M12x1.75 1.75 1.55

128 0360630-490V1, X 630 - 490 360 28 30.67 24.5 60 12 530 17.0 26 14.0 3 530 15̊ 12 4 530 M12x1.75 0.67 0.58

V0 - 700 - 360 - 30.67 24.5 60 18 660 17.0 26 16.5 3 660 10̊ 12 4 660 M12x1.75 0.67 0.58

129 072820-670V1, X 820 - 670 72 40 39.25 28.5 75 18 710 17.0 26 14.0 3 710 10̊ 14 4 710 M12x1.75 1.75 1.55

V0 - 890 - 72 - 39.25 28.5 75 18 850 17.0 26 16.5 3 850 10̊ 14 4 850 M12x1.75 1.75 1.55


*



Model No

03PCC

360Number of Teeth

250Outside diameter

180Inside diameter Standard Dimension Table of Curvic Coupling

No-lift 3PCC into Heavy Work

Fig2.

Caution of coupling useCaution of coupling useCurvic Coupling used in indexing instrument is a high indexing block by itself. In assembling, pay minutely attention and only misalignment shown product accuracy of table should be accomplished by working misalignment of Curvic Coupling. As regards following items, you should accomplish features of Curvic Coupling.

1. Protection against dustPay attention protection against dust . In assembling, remove any impurities from each gear by brush and cleaner.

2. CentripetalismThe decision of indexing position is made by itself. In combining coupling, loosely design at the rotating center of table not to prevent the centripetalism.

3. Respiration ActionIn dividing, it happens respiration between inner body and outside air in case of 2PCC because of lifting one side as tooth height. In case this, you should install respiration hole in the body. You should pay attention not to enter the dust into the Curvic Coupling. In 3PCC, because of no lift, it doesn’t happen respiration by up-down movement.

4. Assembling 3PCCIn using 3PCC in a machine tool indexing instrument, generally it is not used the upper WX. Curvic Coupling is not necessary the thickness accuracy of combined teeth. About clamp, if you independently clamp VO, VI against WX, you could get high accuracy.

The method of coupling assemblingIf upper(rotating part) and lower(fixing part) position alignment of assembled coupling is right or perpendicularity and parallelism of upper and lower mutual basic side make precise, using like following fixture can make this work easily.

1. To manufacture gear groove of Curvic Coupling and accuracy of four sides, one by one of position alignment fixture(Fig 5).

2. Drill crossly tap hole and bolt hole on the fixture plate in the same PCD with pitch circle diameter of bolting hole of Curvic Coupling. Fix tap hole of Curvic Coupling in the fixture plate and make fixture one to one.

3. To bolt as a makeshift assembly single side (concave or convex teeth) in assembly body and put fixture of the other gear.

Match perpendicularity or parallelism of basic side of fixture and body. At right position, pass through hole of fixture plate and bolt Curvic Coupling and assemble.

4. Assemble in the same order like (3) on the other side.

Allowable misalignment before teeth matingWhen assembling concave teeth and convex teeth of Curvic Coupling, perimeter of allowable misalignment will obtain for following formular.A=0.75·2α·tanαA : Allowable Misalignmenta : AddendumIf actually using allowable misalignment, refer to dimension table (4p~7p) for more details this.

In the case of assembling design of index table and Curvic Coupling, you should select the suitable Curvic Coupling considering of heavy load, indexing accuracy, allowable runout of table upper side.

In upper table, standard type is generally used and rigid type is rarely used but this type is used for lifting large sub-table.

To use Coupling Precisely

Fig6.

VO VI

WX

1. Clamp : VI, VO and WX interlock.

4. Clamp : VI put on the position of gear groove of VO. WX interlock in gear groove of VI and VO

3. Rotation : WX is seperated. VI rotates. VO is fixed.

2. Un-Clamp : WX is seperated.

Fig4. Mechanism of 3PCC No-liftTap hole

Bolt hole

Bolt holeFixture

Fig5.

Tablediameter

Curvic Coupling Diameter

Φ300 Φ360 Φ450 Φ520 Φ700 Φ900

Rigid type Φ280 Φ360 Φ450 Φ520 Φ700 Φ900

Standard type Φ250 Φ320 Φ400 Φ450 Φ600 Φ800

Relation between diameter of Index Table and Curvic Coupling


Fig5.

Fig4.

Fig6.

Φ300 Φ360 Φ450 Φ520 Φ700 Φ900

Φ280 Φ360 Φ450 Φ520 Φ700 Φ900

Φ250 Φ320 Φ400 Φ450 Φ600 Φ800



High Accuracy Corresponds to Intellectual Work

5.0''3.0''

Precision type 5.0''

Distance from center

High precision type 3.0''

A

B

C

Classification Pricision type Note

A Toothcontact

At the number of teeth(BN)

more than 80%

Tooth mating state is bringing into contact with the standard master coupling. The standard tooth contact length should be above 50% of tooth length. Throughout the whole length, two adjacent teeth should not be disconnected. More than 80% if the number of teeth should be contact evenly.

At the face width(BW)

more than 50%

B Runout

Runout on top face 0.02

The run out is checked by light mating with master curvic coupling.Runout of outside diameter 0.02

C Stacking distance (S, D) ±0.10 The combined thickness of mated convex and concave teeth is method as H3 in the standard dimension table.

BW

※BN Number of teeth %※BW Face width %

Indexing accuracy

(accumulative)Restoration accuracy

Same tooth mating location

Mutual Difference at same tooth mating location

less than 5 sec

less than ±1.0 sec ±0.01 ±0.01

Special Check Point


Standard Check Point (Quality Control Procedures)

Strength measurement of Curvic CouplingStrength measurement of Curvic Coupling should be checked according to the following formula.

Shear stress, Surface stress, Equivalent surface stress

Ss :

Sc :

Sec :

T :D1 :F :Z :ho :α : Fc :

Ss : Shear stress of tooth N/ (Allowable value : less than 167N/ , the case of carburizing)

Sc : Surface stress of tooth N/ (Allowable value : less than 225N/ , the case of carburizing)

Sec : Equivalent surface stress N/(Allowable value : less than 833N/ , the case of carburizing)

T : Torque N.mD1 : Outsidediameter of Curvic Coupling ㎜F : Gear width of Curvic Coupling ㎜Z : Number of teethho : Effective tooth height ㎜α : Pressure angle deg. standard is 30̊Fc : Clamping force of Curvic Coupling N (The case of table comprises weight

of Curvic Coupling and things loaded upper coupling.)

D1 : 600㎜ F : 16㎜Z : 72ho : 3.54㎜α : 30̊T : 19600N·mFc : 39200N

Example of calculationSelect of Curvic Coupling 72600-480XV (No.57 S model), each stress is according to the follows.

D1 : 600㎜ F : 16㎜Z : 72ho : 3.54㎜α : 30̊T : 19600N·mFc : 39200N

The maximum endurance clamp force of Curvic Coupling

The maximum endurance clamp force of Curvic Coupling (regardless of torque). This could be obtained according to the formula of “Sec=equivalent surface stress” as T=0.

Sec : 833N/ SCM415Z : 24F : 8㎜ho : 2.00㎜tanα : (α=30̊) 0.57735Fc = 833 x 24 x 8 x 2.0 x 2 x 0.57735 = 369352N

Example of calculationThe case of Curvic Coupling 24120-60XV (No.9 S model), the maximum endurance clamping force.

Sec : 833N/㎟ (Material SCM415: part of carburizing)Z : 24F : 8㎜ho : 2.00㎜tanα : (α=30̊) 0.57735Fc = 833 x 24 x 8 x 2.0 x 2 x 0.57735 = 369352N

Load calculation

Strong clamp force is not suitable. It is economical to select for use purpose in designing. The problem is circumference load PT and horizontal situation load PH and this could be obtained according to the following formula.

d2

Fc xH

D2

PT = Fc x 1.73

T = PT x

PH =

PT :Fc : T :d :PH :D1 :H :

PT = Fc x 1.73

T = PT x

PH =

PT : Load for circumference directionFc : Clamping forceT : Rotating torqued : mean radius of couplingPH : Load for horizontal directionD1 : Outside diameter of couplingH : Distance of working point from picth

circle diameter

d2

Fc xH

D2

Ss =

Sc =

Sec = +( )

4T

2T

1 Fc 2T

π(D1-F)2 · F

(D1-F) · F · Z · ho

Z · F · ho 2tanα D1 - F

Ss =

Sc =

Sec = +( )

4T

2T

1 Fc 2T

π(D1-F)2 · F

(D1-F) · F · Z · ho

Z · F · ho 2tanα D1 - F

∴Fc = Sec x Z x F x ho x 2 x tanα

Sec = x1 FcZ x F x ho 2 x tanα

∴Fc = Sec x Z x F x ho x 2 x tanα

Sec = x1 FcZ x F x ho 2 x tanα

Fc : 29400ND : 400㎜H : 500㎜PT = 29400 x 1.73 = 50862NPH = = 11760N29400 x 400/2

500

Example of calculationThe case of Curvic Coupling 72400-280XV (No.47 S model), load for horizontal direction and circumference direction.

Fc : 29400ND : 400㎜H : 500㎜PT = 29400 x 1.73 = 50862NPH = = 11760N29400 x 400/2

500

Ss =

Sc =

Sec = x +( )

= 4.6N/

= 16.5N/

= 24.8N/

4 x 19.6 x 106

2 x 19.6 x 106

1 39.2 x 103 2 x 19.6 x 106

3.1416 x (600 - 16)2 x 16

(600 - 16) x 16 x 72 x 3.54

72 x 16 x 3.54 2 x 0.57735 600 - 16

Ss =

Sc =

Sec = x +( )

= 4.6N/

= 16.5N/

= 24.8N/

4 x 19.6 x 106

2 x 19.6 x 106

1 39.2 x 103 2 x 19.6 x 106

3.1416 x (600 - 16)2 x 16

(600 - 16) x 16 x 72 x 3.54

72 x 16 x 3.54 2 x 0.57735 600 - 16

Fc

ho

FD1

Fc

PT

PH

Pitch Plane60º H

dD1

Fig7. Fig8.



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