China Hot selling Oldham Type Coupling Cross Sliding Clamp Coupling Ghc-32X45 oldham coupling

Product Description

GHC Oldham type coupling cross sliding clamp coupling


Description of
 GHC Oldham type coupling cross sliding clamp coupling
>The colloid material is imported PA66, which has good wear resistance, corrosion resistance and electrical insulation
>Sliding design can compensate radial and angular deviation more effectively
>Detachable design, easy to install
>Fastening method of clamping screw

Dimensions of GHC Oldham type coupling cross sliding clamp coupling

model parameter common bore diameter d1,d2 ΦD L LF LP F M tightening screw torque
(N.M)
GHC-16X21 4,5,6,6.35 16 21 8.6 11.6 2.5 M2.5 1
GHC-16X30 4,5,6,6.35 16 30 13.1 11.6 3 M2.5 1
GHC-20X22 5,6,6.35,7,8 20 22 8.6 12.7 2.5 M2.5 1
GHC-20×33 5,6,6.35,7,8 20 33 14.1 12.7 3 M2.5 1
GHC-25×28 5,6,6.35,8,9,9.525,10,11,12 25 28 11.7 16.65 3 M3 1.5
GHC-25X39 5,6,6.35,8,9,9.525,10,11,12 25 39 17.2 16.65 4.2 M3 1.5
GHC-32X33 5,6,8,9,9.525,10,11,12.12.7,14,15,16 32 33 14 19.5 3 M4 2.5
GHC-32X45 5,6,8,9,9.525,10,11,12,12.7,14,15,16 32 45 20 19.5 4.5 M4 2.5
GHC-40X50 8,9,9.525,10,11,12,14,15,16,17,18,19 40 50 23 18.4 7 M5 7
GHC-45X46 8,9,9.525,10,11,12,14,15,16,17,18,19,20,22 45 46 21 18.4 7 M5 7
GHC-50X53 10,11,12.7,14,15,16,17,18,19,20,22,24 50 53 24 15 7.5 M6 12
GHC-50X58 10,11,12.7,14,15,16,17,18,19,20,22,24 50 58 26.5 17.5 8 M6 12
GHC-55X57 10,11,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32 55 57 26 17.5 7.8 M6 12
GHC-63X71 14,15,16,17,18,19,20,22,24,25,28,30,32 63 71 33 24 10 M8 20
GHC-70X77 14,15,16,17,18,19,20,22,24,25,28,30,32,35,38 70 77 29.5 25 12 M8 20

  

model parameter Rated torque
(N.M)*
allowable eccentricity
(mm)*
allowable deflection angle
(°)*
allowable axial deviation
(mm)*
maximum speed
rpm
static torsional stiffness
(N.M/rad)
moment of inertia
(Kg.M2)
Material of shaft sleeve Material of shrapnel surface treatment weight
(g)
GHC-16X21 0.7 0.8 3 ±0.2 8500 30 5.5×10-7 High strength aluminum alloy P A 6 6 Anodizing treatment 8
GHC-16X30 0.7 0.8 3 ±0.2 9000 30 5.9×10-7 12
GHC-20X22 1.2 1.2 3 ±0.2 6500 58 1.3×10-6 13
GHC-20×33 1.2 1.2 3 ±0.2 7000 58 1.5×10-6 19
GHC-25X28 2 1.6 3 ±0.2 5500 130 4.0×10-6 24
GHC-25X39 22 1.6 3 ±0.2 6000 130 4.5×10-6 35
GHC-32X33 4.5 2 3 ±0.2 4500 270 1.3×10-5 48
GHC-32X45 4.5 2 3 ±0.2 4800 270 1.5×10-5 67
GHC-40X50 9 2.4 3 ±0.2 3600 520 4.2×10-5 114
GHC-45X46 12 2.5 3 ±0.2 3500 800 4.5×10-5 140
GHC-50X53 19 2.6 3 ±0.2 3000 800 1.0×10-4 190
GHC-50X58 19 3 3 ±0.2 3000 800 1.1×10-4 215
GHC-55X57 25 3.2 3 ±0.2 3000 900 1.3×10-5 260
GHC-63X71 33 3 3 ±0.2 2550 1200 3.5×10-4 455
GHC-70X77 56 3.5 3 ±0.2 2500 1260 4.1×10-5 520

 

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oldham coupling

What are the Potential Limitations or Drawbacks of Using an Oldham Coupling?

While Oldham couplings offer numerous advantages, they also have some limitations and drawbacks that should be considered when selecting a coupling for a specific application:

1. Limited Misalignment Capacity: Oldham couplings can only accommodate small amounts of angular and axial misalignment between the shafts. They are not suitable for applications with high levels of misalignment as excessive misalignment can lead to premature wear and failure of the center disc.

2. Speed Limitations: Oldham couplings are generally not recommended for high-speed applications. The flexible center disc has a maximum speed limit, and exceeding this limit can cause the disc to fatigue and fail over time.

3. Temperature Sensitivity: The performance of Oldham couplings can be affected by temperature fluctuations. Extreme temperatures can impact the flexibility and integrity of the center disc material, leading to reduced coupling performance.

4. Backlash in High-Precision Systems: While Oldham couplings minimize backlash compared to some other couplings, they may still have some inherent clearance between the hubs and the center disc, leading to a slight amount of backlash. In ultra-high-precision systems, this slight backlash may be a concern.

5. Material Compatibility: The material used for the center disc must be chosen carefully to ensure compatibility with the specific application’s environment and the media being conveyed. Some aggressive chemicals or harsh environments may degrade the material over time.

6. Maintenance: Oldham couplings require periodic inspection and maintenance to ensure proper functioning. The center disc may wear out over time and need replacement, especially in applications with high torque or frequent start-stop cycles.

Despite these limitations, Oldham couplings remain a popular choice in many applications due to their vibration reduction, backlash minimization, and moderate misalignment compensation capabilities. However, it is essential to carefully assess the specific requirements of the application and consider the potential drawbacks before selecting an Oldham coupling.

oldham coupling

Can an Oldham Coupling be Used in Both Horizontal and Vertical Shaft Orientations?

Yes, an Oldham coupling can be used in both horizontal and vertical shaft orientations. The design of the Oldham coupling allows it to accommodate misalignment between shafts in multiple directions, including axial, angular, and parallel misalignments.

In horizontal shaft arrangements, the Oldham coupling can handle misalignment between two parallel shafts while transmitting torque smoothly and efficiently. It is commonly used in various power transmission applications where two shafts are relatively close together and require a reliable coupling to compensate for misalignment.

In vertical shaft orientations, the Oldham coupling can handle axial misalignment, which is the misalignment between the rotational axes of the two shafts. This makes it suitable for applications where the connected shafts are not perfectly aligned due to gravitational forces or other factors.

The Oldham coupling’s ability to accommodate misalignment in both horizontal and vertical shaft orientations makes it a versatile choice for a wide range of mechanical systems, including pumps, compressors, conveyor systems, and more. However, it is essential to ensure proper installation and maintenance to maximize the coupling’s performance and service life in any shaft orientation.

oldham coupling

Transmission of Torque in Oldham Couplings

An Oldham coupling is designed to transmit torque between two shafts that are misaligned but parallel to each other. It consists of three components: two hubs (also known as drive hubs) and a center disc. The hubs are connected to their respective shafts, while the center disc sits between them.

The center disc of the Oldham coupling is characterized by slots or keyways on its opposite sides, which engage with the hubs. The slots allow the center disc to slide or float within the hubs while maintaining a constant angular velocity between the shafts.

When torque is applied to the drive hub on one side, it induces a rotational force on the center disc. This rotational force is then transferred to the other drive hub, which results in torque transmission to the second shaft. The center disc acts as an intermediary between the two hubs, compensating for any axial or radial misalignment between the shafts.

Regarding the question of different shaft diameters, the Oldham coupling can accommodate shafts with different diameters as long as the hub design allows for a secure connection. The keyways or slots in the center disc and hubs should be compatible with the shaft dimensions to ensure proper torque transmission and to prevent slippage or damage.

It is essential to select the appropriate size and design of the Oldham coupling to match the shaft diameters and to ensure reliable torque transmission while accommodating any misalignment between the shafts.

China Hot selling Oldham Type Coupling Cross Sliding Clamp Coupling Ghc-32X45  oldham couplingChina Hot selling Oldham Type Coupling Cross Sliding Clamp Coupling Ghc-32X45  oldham coupling
editor by CX 2024-04-26