JAC COUPLING
JAC COUPLING
Description
The material of JAC composite coupling is safe from being rusty.
Factory Workers can install and replace it easily because of the light weight
Compensation function for the big misalignment is allowed through the long fatigue life and the high flexibility of JAC composite coupling.
merits
The merits of JAC composite coupling
The JAC composite coupling is designed to be applied to the facility like a high-speed cooling tower which definitely needs a long axis. This axis has very long DBSE(Distance Between Shalt Ends). Therefore, if we use steel materials as an axis, it tends to cause a big deflection phenomenon during rotation because of its selfload.
In this case, we have to use the fixture and bearings to support the riddle pari ol the long axis to minimize the deflection as shown
However, the long axis of the coupling made of the composite material which weighs only 20 % of the steel material can reduce deflection conspicuously compared to the same standard coupling made of the steel material. Once the composite material is used, the length of the axis can be extended by as much as 80% without using the fixtu任 and bearings as shown in the piicture below.
Quality Assurance
Rotation quality is guaranteed through 100% balancing test in accordance with 1SO1940-1 6.3 grade
Peak torque is guaranteed through the regular bond-strength test
Design
Owing to the low gravity of the carbon-composite material, the weight ol JAC composite coupling is about 20% of the coupling made by the steel material. Once the composite material is 니sed，the length of the axis of JAC composite coupling can be enlarged by 80% more than the axis of the coupling made by the steel material without using the fixture and bearings while transmitting power at high speed.
As the surface is coated to prevent the moisture absorption of composite materials, the high fatigue life is guaranteed even though they are exposed to the corrosion environrrent
Bonding of composite material and metal
As it is designed in the form of aggregation structure with the groove type to secure the solid bonding of stainless flange and composite spacer used the composite materials, JAC composite coupling minimize the radial displacement while the rotation lasts at high speed and the stress distribution of the bonding surface following the bonding structure was approved by the finite element analysis and the related test.
Dimension table for the standard products
|
|
Continus |
Peak |
Max.DBSE |
D |
A |
B |
Max.Bore (mm) |
C |
||||||
|
Model |
Nm |
kgf m |
Nm |
kgf.m |
分 1780 RPM |
@1480 |
(mm) |
(mm) |
N |
U |
N |
U |
N |
U |
|
JCT-133 |
820 |
83.7 |
1,229 |
125.4 |
2,500 |
2,500 |
70 |
133 |
80 |
102 |
55 |
75 |
45 |
57 |
|
|
|
|
|
|
3,000 |
3.000 |
86 |
|
|
|
|
|
|
|
|
JCT-152 |
1,243 |
126.8 |
1,864 |
190.2 |
3,581 |
3,912 |
108 |
152 |
94 |
121 |
70 |
85 |
64 |
70 |
|
|
|
|
|
|
4,318 |
4,800 |
1 的 |
|
|
|
|
|
|
|
|
|
|
|
|
|
3,581 |
3,912 |
108 |
|
|
|
|
|
|
|
|
JCT-171 |
2,045 |
208.7 |
3,067 |
312.9 |
4,318 |
4,800 |
159 |
171 |
108 |
133 |
80 |
100 |
65 |
70 |
|
|
|
|
|
|
4,902 |
5,461 |
210 |
|
|
|
|
|
|
|
|
JCT-229 |
4,090 |
417.3 |
6,135 |
626.0 |
4,318 |
4,800 |
159 |
229 |
147 |
191 |
105 |
130 |
64 |
64 |
NOTE) 표기된 중향은 내경 가공이 없는 상대의 중량임
How to read the marking method for the standard JAC composite coupling
How to select the suitable composite coupling for the cooling tower
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