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  • Name: GCLD gear coupling
  • NO.: 0161
  • Release time: 2013-04-01
  • Views : 116

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A gear coupling is a mechanical device for transmitting torque between two shafts that are not collinear. It consists of a flexible joint fixed to each shaft. The two joints are connected by a third shaft, called the spindle.

Each joint consists of a 1:1 gear ratio internal/external gear pair. The tooth flanks and outer diameter of the external gear are crowned to allow for angular displacement between the two gears. Mechanically, the gears are equivalent to rotating splines with modified profiles. They are called gears because of the relatively large size of the teeth.

Gear couplings and universal joints are used in similar applications. Gear couplings have higher torque densities than universal joints designed to fit a given space while universal joints induce lower vibrations. The limit on torque density in universal joints is due to the limited cross sections of the cross and yoke. The gear teeth in a gear coupling have high backlash to allow for angular misalignment. The excess backlash can contribute to vibration.

Gear couplings are generally limited to angular misalignments, i.e., the angle of the spindle relative to the axes of the connected shafts, of 4-5°. Universal joints are capable of higher misalignments.

Advantages of Tanso gear coupling

1. Lowest price based on large scale production.

2. High and stable quality level.

3. Widely used in various mechanical and hydraulic fields.

4. Compensation for axial, radial and angular misalignment.

5. Convenient axial plugging assembly.

6. No brittlement at low temperature.

7. Good slippery and frictional properties.

8. Resistance to chemical corrosion.

9. Rich experience working with big companies in this field.

Design advantages

The Flexible Coupling method of connecting rotating shafts is a vital and necessary technique. Large massive shafting, loosely mounted in sleeve bearings and merely joined together by rigidly bolted flanges, cannot provide efficient mechanical power transmission. Especially today, as machine designers and builders demand higher speeds, higher torques, and higher misalignment capacities, the need for “flexibly connecting” this equipment becomes apparent.

A flexible coupling is necessary since it is practically impossible to achieve and maintain perfect alignment of coupled rotating shafts. During initial assembly and installation, precise alignment of the shaft axes is not only difficult to achieve but in many cases it is economically unfeasible. During operation, alignment is even more difficult to maintain. Shaft misalignment – caused by uneven bearing wear, flexure of structural members, settling of foundations, thermal expansion, shaft deflection and other factors – is an operating certainty. Because these factors are extremely difficult to control, a flexible coupling serves as an ideal answer to compensate or minimize the effects of unavoidable misalignment and end movement of coupled shafts.

 

A flexible coupling must provide three basic functions:

1. Physically couple together two rotating shafts for efficient transmission of mechanical power, transferring the torque of one shaft to the other, directly and with constant velocity.

2. Compensate for all types of misalignment between rotating, connected shafts without inducing abnormal stresses and loads on connected equipment, and without tangible loss of power.

3. Compensate for end or axial movement of the coupled shafts, preventing either shaft from exerting excessive thrust on the other and allowing each to rotate in its normal position.

   

Three types of misalignment must be effectively accommodated by a flexible coupling.

1. Parallel Offset – axes of connected shafts are parallel, but not in the same straight line.

2. Angular – axes of shafts intersect at center point of coupling, but not in the same straight line.

3. Combined Angular-Offset – axes of shafts do not intersect at point of coupling and are not parallel.

  

Product description

 

Type

Nominal torque

Tn

/N·m

Max speed [n]

/r·min-1

Bore diameter

d1d2dZ

Bore length

L

D

D1

D2

C1

H

A

A1

B

B1

e

Mass m

/kg

Moment of inertia I

/kg·m2

Y

J1Z1

GCLD1

1120

4000

2224

52

38

127

95

75

6

2

43

22

66

45

42

6.2

0.035

2528

62

44

7.2

0.041

30323538

82

60

7.8

0.044

40424548505556

112

84

9.6

0.047

GCLD2

1800

4000

38

82

60

149

116

90

6.5

2

44.5

24.5

70

49

42

11.2

0.085

40424548505556

112

84

14

0.097

606365

142

107

16.4

0.106

GCLD3

3150

4000

40424548505556

112

84

167

134

105

7

2.5

53.5

27.5

80

54

42

17.2

0.16

606365707175

142

107

22.4

0.19

GCLD4

5000

4000

4548505556

112

84

187

153

125

7.5

2.5

54

28

81

55

42

25.2

0.29

606365707175

142

107

26.4

0.33

808590

172

132

35.6

0.38

GCLD5

7100

3750

5055

112

84

204

170

140

7.5

2.5

60

30

89

59

42

31.6

0.45

606365707175

142

107

38

0.51

80859095

172

132

44.6

0.58

100(105)

212

167

53.9

0.69

GCLD6

10000

3300

5556

112

84

230

186

155

8.5

3

68.5

33.5

106

71

47

40.5

0.75

606365707175

142

107

49.8

0.84

80859095

172

132

56.3

0.94

100110(115)

212

167

67.5

1.07

GCLD7

16000

3000

606365707175

142

107

256

212

180

6

3

73.5

34.5

112

73

47

63.9

1.43

80859095

172

132

74.7

1.6

100110120125

212

167

88

1.85

130(135)

252

202

106.7

2.11

GCLD8

22400

2650

65707175

142

107

287

239

200

8.5

3.5

69

39

112

82

47

81.7

2.24

80859095

172

132

95.5

2.51

100110120125

212

167

114

2.88

130140150

252

202

123

3.25

GCLD9

355000

2350

707175

142

107

325

276

235

9.5

3.5

80.5

40.5

125

85

47

112

4.31

80859095

172

132

130

4.83

100110120125

212

167

156

5.53

130140150

252

202

181

6.74

160170(175)

302

242

212

7.08

GCLD10

50000

2100

75

142

107

362

313

270

11

4

98.5

44.5

149

95

49

161

7.88

80859095

172

132

172

8.29

100110120125

212

167

206

9.52

130140150

252

202

239

10.25

160170180

302

242

280

12.22

190200

352

282

319

13.69