China Standard Jm120c Od120mm Flexible Aluminum Jaw Coupling

Product Description

JM120C OD120mm Flexible Aluminum Jaw Coupling

Quick Details
Structure: Jaw / Spider
Flexible or Rigid: Flexible
Standard or Nonstandard: Standard
Material: Aluminium
Model Number: JM-C
Spider color: Red (Green and Yellow selected)
Out diameter: 120mm
Inner bore: 20-74
Length: 160mm
Torque:60.0-120.0 N.m

Specifications
1.The materials of Spider:German Bayer.
2.Hard Aluminum alloy

Your kind response of below questions will help us to recomemnd the most suitable model to you asap.
1.Areyou looking for Setscrew type or Clamp type?
2.what is coupling outer dimeter size?
3.what is coupling inner bore size and length?

4.what is coupling material(aluminium or Stainless steel )?

Dimensions:

Model Inner bore D
(mm)
L
(mm)
Nominal Torque
(N.m)
The Max of Torque
(N.m)
dmin dmax
JM2-25 4 12 25 34 5.0 10.0
JM2-30 6 16 30 35 7.4 14.8
JM2-40 10 24 40 66 9.5 19.0
JM2-55 12 28 55 78 34 68
JM2-65 14 38 65 90 95 190
JM2-80 24 45          80 114 135 270
JM2-95 30 55           95 126 230 460
JM2-105 35 60         105 140 380 760
Model Allowable speed
(rpm)
Radial Misalignment(m.m) Angular
Misalignment(°)
Axle
Misalignment(mm)
JM2-25 17000 0.02 1.0 +0.60
JM2-30 12000 0.02 1.0 +0.60
JM2-40 10000 0.02 1.0 +0.80
JM2-55 8000 0.02 1.0 +0.80
JM2-65 6000 0.02 1.0 +0.80
JM2-80 4600 0.02 1.0 +1.00
JM2-95 3800 0.02 1.0 +1.00
JM2-105 3400 0.02 1.0

Packaging Details:
Wooden or ply cases for export standard or according to the customers
Delivery Detail:3-5 days after receiving the 30% deposit

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jaw coupling

Impact of Jaw Coupling on Noise and Vibration in Mechanical Systems

Jaw couplings play a significant role in mitigating noise and vibration levels in mechanical systems. The design and materials of the coupling determine its ability to dampen vibrations and reduce noise. Here’s how a jaw coupling affects noise and vibration in a mechanical system:

  • Vibration Dampening: Jaw couplings, especially elastomer jaw couplings, are designed to absorb and dampen vibrations that may occur in the system. The elastomeric spider element in elastomer jaw couplings acts as a cushion, absorbing shocks and vibrations that might result from misalignment, sudden starts, or stops. By absorbing vibrations, jaw couplings help prevent these vibrations from propagating through the system, thus reducing the overall vibration levels.
  • Noise Reduction: The vibration dampening properties of jaw couplings also contribute to noise reduction. Vibrations can lead to mechanical noise, which can be particularly pronounced in high-speed applications. By reducing vibrations, jaw couplings help decrease the noise generated during system operation. This is especially beneficial in applications where low noise levels are crucial for the comfort of operators or nearby occupants.
  • Misalignment Compensation: Jaw couplings are designed to accommodate a certain degree of misalignment between the shafts they connect. This ability to compensate for misalignment prevents additional forces and stresses from being transferred to the system, reducing the likelihood of generating noise and vibrations due to misalignment.
  • Material Selection: The choice of materials in jaw couplings can also influence noise and vibration levels. Elastomer jaw couplings, with their flexible spider element, offer superior vibration dampening compared to rigid metallic jaw couplings. Metallic jaw couplings, while not as effective at vibration dampening, are more rigid and offer higher torque capacity.

Overall, jaw couplings are effective in reducing noise and vibration levels in mechanical systems. The extent of noise and vibration reduction depends on the specific design, material, and the level of misalignment the coupling can accommodate. Properly selected and installed jaw couplings can contribute to a smoother and quieter operation of the entire mechanical system.

jaw coupling

How does a jaw coupling help in power transmission efficiency?

A jaw coupling plays a significant role in enhancing power transmission efficiency in mechanical systems. It achieves this by incorporating several design features that minimize energy losses and maximize the transfer of power from one shaft to another. Here are some ways in which a jaw coupling helps improve power transmission efficiency:

  1. Mechanical Flexibility: Jaw couplings utilize a flexible elastomer spider as the connecting element between the two shafts. This elastomer spider allows for a certain degree of angular and parallel misalignment between the shafts without imposing significant additional loads on the connected equipment. The mechanical flexibility of the elastomer helps reduce the generation of excess heat and vibration, thereby optimizing power transmission efficiency.
  2. Vibration Damping: The elastomer spider in a jaw coupling also acts as a vibration-damping element. It absorbs and dissipates vibrations generated during the operation of rotating machinery. By dampening vibrations, the coupling reduces energy losses due to mechanical oscillations, which can otherwise decrease the overall power transmission efficiency.
  3. Shock Absorption: In addition to damping vibrations, jaw couplings can handle sudden shocks and impacts that may occur during equipment operation. The elastomer spider’s ability to absorb shocks prevents sudden force spikes from propagating through the system and helps maintain steady power transmission, thus improving overall efficiency.
  4. Reduced Friction: The design of jaw couplings minimizes sliding friction between the shafts and the coupling components. This reduced frictional resistance results in lower energy losses and less heat generation during power transmission, contributing to higher efficiency in the system.
  5. Torsional Wind-Up Compensation: When torque is transmitted through the shafts, there can be some degree of torsional wind-up or twist in the coupling. Jaw couplings can compensate for this torsional movement, ensuring that the transmitted power reaches the intended equipment without significant losses due to torsional deformation.
  6. Simple and Robust Design: Jaw couplings have a simple construction, typically consisting of two hubs and an elastomer spider. This straightforward design reduces the number of moving parts and potential points of failure, resulting in a robust and reliable coupling. A reliable coupling minimizes the risk of power losses due to mechanical inefficiencies or breakdowns, thus improving overall power transmission efficiency.

In summary, a jaw coupling enhances power transmission efficiency by providing mechanical flexibility, vibration damping, shock absorption, reduced friction, and torsional wind-up compensation. Its simple and robust design further contributes to reliable power transmission. When selecting a jaw coupling for a specific application, it is essential to consider factors such as torque requirements, operating conditions, and misalignment compensation to ensure optimal efficiency and performance in the system.

jaw coupling

Handling Angular, Parallel, and Axial Misalignment with Jaw Couplings

Jaw couplings are designed to handle various types of misalignment that can occur between the shafts they connect. These misalignments include:

  • Angular Misalignment: When the shafts are not aligned in a straight line and have an angular offset, jaw couplings can accommodate this misalignment due to the flexibility of their elastomeric spider. The spider allows for a limited amount of angular movement between the hubs, reducing stress on the connected equipment.
  • Parallel Misalignment: Parallel misalignment occurs when the shafts are not perfectly aligned but are parallel to each other. Jaw couplings can handle parallel misalignment to some extent, thanks to the elastomeric spider’s ability to flex and offset slight shaft misalignments.
  • Axial Misalignment: Axial misalignment refers to the displacement of shafts along their rotational axis. While jaw couplings are primarily designed for torque transmission and misalignment compensation, they have limited capability to handle axial misalignment. Excessive axial misalignment can lead to premature wear and reduce the coupling’s effectiveness.

It’s important to note that jaw couplings have specific misalignment limits, and exceeding these limits can lead to increased wear and decreased performance. Regular maintenance and inspection of jaw couplings are essential to ensure they are operating within acceptable misalignment parameters.

China Standard Jm120c Od120mm Flexible Aluminum Jaw Coupling  China Standard Jm120c Od120mm Flexible Aluminum Jaw Coupling
editor by CX 2023-12-07

jaw type coupling

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