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Elastomeric Coupling
Model Name
J2
Data
Catalog-Jac coupling-Elastomeric coupling
Manufacturer information
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JAC COUPLING

Coupling manufacturer, Gear coupling, Disk coupling, Grid coupling, Wire drum coupling and more

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Manufacturer
JAC COUPLING
Brand
-
SKU
54762
Product Name
Elastomeric Coupling
Model Name
J2, J3, J4, J5, J10, J20, J30, J40, J50, J60, J70
Size
-
Weight
-
Product Details

JAC Coupling supplies various types of elastomeric coupling such as Tire coupling,

Rubber coupling and JAC-Flex coupling.
JAC-Flex coupling guarantees easy installation, high flexibility and long service life.

Characteristics of JAC-Flex Coupling

  • Rapid and easy assembly/disassembly. Element consists of two halves split longitudinally.

  • Protects equipment. Super flexible urethane element is capable of up to 40 angular and 4.7mm  parallel misalignment Longer system life.

  • Lower weight and inertia.
    Less transmission of vibration Longer Life for motor and pump bearings.

  • Compact. Connected equipment can be moved closer. No need to provide space to back out coupling bdts.

  • Safe. Non-sparking, Reduces risk of fire." No lubrication.

5 times Continuous Torque test guarantee the flexibility of coupling

Design Characteristics are validated with torsional test : Torsional Stiffness, Axial Stiffness, Radial Stiffness

Composition of JAC-Flex Coupling

JAC Flex coupling is composed of 2 split-in-half elastic element and self-locking bolts.
It is easy to replace elastic element without disassembly of hubs or connecting elements

Mount hubs on shafts.
Place one elastic element on hub andposition bolts on hub and elastic element.
Place another elastic element on hub. Tighten the bolts with assigned torque.

Tightening Torque of bolts

Size

BoltsSize

Tightening Torque (Nm)

J2

M6

9

J3

M6

9

J4

M6

9

J5

M6

9

J10

M6

9

J20

M10

42

J30

M10

42

J40

M10

42

J50

M10

42

J60

M12

72

J70

M12

72

Selection of Coupling Size

1) Determine service factor considering driver and driven equipment referring to load classification and Safety Factor Table.

2) Multiply service factor to normal operating power. This will provide a Design Power for the purpose of coupling selection

3) Use the power and the operating speed to select the coupling size from the upper chart.

4) Or multiply operating torque by service factor and select a coupling from the torque capacity chart

5) After selection as mentioned above, we confirm the satisfying size as compared with the maximum bore diameter.

Misalignment Guideline of JAC-Flex Coupling

Maximum of Each misalignment cannot be experienced by the coupling simultaneously. eachmisalignment shall be below the line. bore diameter.

JAC Urethan Couplings Demensions in metric(With Hub)

Size

Demesion(mm)

Weight
(kg)

Max.
Bore
(mm)

Max.
RPM

Continuous
Torque
(kgf cm)

Hp per
100RPM

A

B

C

D

E

Out
Dia.

Hub
Length

Minimum
Spacing

Maximum
Spacing

Hub
Dia.

In Total
Length

Out
Total
Length

J2

89

24

34

48

47

89

96

0.5

28

7,500

218

0.30

J3

102

38

21

33

59

97

110

1.1

34

7,500

421

0.59

J4

116

43

11

33

66

97

119

1.4

42

7,500

639

0.89

J5

137

45

21

46

80

110

135

2.4

48

7,500

1,080

1.51

J10

162

48

14

47

93

110

141

3.7

55

7,500

1,070

2.33

J20

184

52

13

61

114

117

165

5.9

60

6,600

2,670

3.73

J30

210

59

14

62

138

132

179

9.5

75

5,800

4,210

5.88

J40

241

64

14

68

168

141

195

15.9

85

5,000

6,340

8.85

J50

279

70

16

86

207

156

225

24.5

90

4,200

8,820

12

J60

318

83

18

87

222

187

253

32.7

105

3,800

14,400

20

J70

356

82

19

95

235

203

279

39

120

3,600

25,500

36

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JAC COUPLING
Coupling manufacturer, Gear coupling, Disk coupling, Grid coupling, Wire drum coupling and more
‘Challenge the best coupling that can make dreams come true!’Hard working and constant effort for a new 21st-century dream! This is the ultimate goal pursued by Jac Coupling Inc. As we all know that advancement of the industry and the rapid development of the machine industry accelerate the interest in couplings for power transmission. Jac Coupling has been manufacturing only the Power Transmission Couplings for 20 years and with the goal of ‘Challenge the best coupling’, we are making constant effort to become a cornerstone of industrial development in machinery by providing high performance couplings through high accuracy machinery facilities with stable quality control.
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