China Best Sales Gh-70X77 Oldham Type Coupling Cross Sliding Set Screw Coupling oldham coupling

Product Description

GH Oldham type coupling cross sliding set screw coupling


Description of
 GH Oldham type coupling cross sliding set screw 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 GH Oldham type coupling cross sliding set screw coupling

  

model parameter common bore diameter d1,d2 ΦD L LF LP F M tightening screw torque
(N.M)
GH-16X18 4,5,6,6.35,7,8 16 18 7.1 11.6 3.55 M3 0.7
GH-20X25 5,6,6.35,7,8,9,9.525 20 25 9.1 12.7 4.55 M4 1.7
GH-25X28 5,6,6.35,8,9,9.525,10,11,12,14 25 28 11.7 16.65 5.58 M4 1.7
GH-32×33 5,6,8,9,9.525,10,11,12,12.7,14,15,16 32 33 14 19.5 7 M4 1.7
GH-40X35 8,9,9.525,10,11,12,12.7,14,14,16,17,18,19,20 40 35 15.5 18.4 7.75 M4 1.7
GH-45X46 8,9,9.525,10,11,12.7,14,15,16,17,18,19,20,22 45 46 21.5 18.4 9 M5 4
GH-50X38 10,12,12.7,14,15,16,17,18,19,20,22,24,25 50 38 16.5 15 8.25 M5 4
GH-55X57 10,12,12.7,14,15,16,17,18,19,20,22,24,25,28,30,32 55 57 27 17.5 10.5 M5 4
GH-63X47 14,15,16,17,18,19,20,22,24,25,28,30,32 63 47 21 17.5 10.5 M6 8.4
GH-70X77 16,17,18,19,20,22,24,25,28,30,32,38,40 70 77 36.5 25 13.5 M8 10.5

 

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)
GH-16X18 0.7 0.8 3 ±0.2 9000 30 3.3×10-7 High strength aluminum alloy P A 6 6 Anodizing treatment 6
GH-20X25 1.2 1.2 3 ±0.2 7000 58 1.1×10-6 18
GH-25X28 2 1.6 3 ±0.2 6000 130 3.1×10-6 25
GH-32×33 4.5 2 3 ±0.2 4800 270 9.6×10-6 44
GH-40X35 9 2.4 3 ±0.2 3600 520 2.3×10-5 81
GH-45X46 12 2.8 3 ±0.2 3500 560 3.8×10-5 136
GH-50X38 19 2.6 3 ±0.2 3000 800 1.8×10-4 142
GH-55X57 22 3.3 3 ±0.2 2800 795 8.0×10-4 255
GH-63X47 19 3 3 ±0.2 2500 1200 8.3×10-4 320
GH-70X77 56 3.8 3 ±0.2 2500 1260 3.9×10-4 445

 

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oldham coupling

Different Sizes and Configurations of Oldham Couplings

Yes, Oldham couplings are available in various sizes and configurations to suit different applications and requirements. The sizes and configurations can vary based on factors such as torque capacity, shaft diameter, and overall dimensions. Some common variations include:

1. Shaft Diameters: Oldham couplings come in a range of shaft diameter options to accommodate different motor and shaft sizes. They can be found in standard metric and imperial sizes, making them compatible with various equipment and machinery.

2. Torque Capacity: Oldham couplings are designed to handle different torque capacities. The torque capacity of a coupling depends on its size, materials used, and overall construction. High-performance couplings can transmit higher torques, while smaller couplings may be suitable for lighter applications.

3. Coupling Length: The length of the coupling can vary, and some designs allow for compact installations in confined spaces, while others may have longer lengths for specific applications.

4. Materials: Oldham couplings are manufactured using various materials such as aluminum, stainless steel, and composite materials. The choice of material depends on factors like the operating environment, chemical resistance, and desired performance characteristics.

5. Spacer Type: Oldham couplings may have different spacer designs, including straight-spacer and step-spacer configurations. The choice of spacer type can affect the overall stiffness and misalignment capabilities of the coupling.

6. Hub Style: Oldham couplings come with different hub styles, such as set screw, clamp, or compression-style hubs, to accommodate various shaft attachment methods and ease of installation.

7. Backlash: Couplings may have different backlash characteristics, allowing for minimal angular play between the hubs to reduce vibration and shock loads.

Manufacturers of Oldham couplings typically provide detailed specifications and product catalogs that outline the available sizes and configurations. It’s essential to select the right coupling size and configuration that matches the requirements of the specific application to ensure optimal performance and longevity.

oldham coupling

Can an Oldham Coupling be Used in Precision Motion Control Applications?

Yes, an Oldham coupling can be used in precision motion control applications. Oldham couplings are known for their ability to provide constant velocity transmission while accommodating misalignment. These couplings offer low backlash and minimal hysteresis, making them suitable for precision motion control systems.

Precision motion control applications require accurate and repeatable motion, which can be achieved by using an Oldham coupling. The coupling’s design allows it to handle angular misalignment without introducing significant axial or radial forces. This feature helps maintain the accuracy and integrity of the motion control system.

Oldham couplings are often used in applications such as robotics, CNC machines, optical equipment, and other systems where precise positioning and smooth motion are essential. Their ability to reduce vibration and minimize backlash is particularly beneficial in these applications, as it enhances the system’s overall performance and accuracy.

When selecting an Oldham coupling for precision motion control, it is essential to consider factors such as the required torque capacity, speed, and shaft sizes. Additionally, regular maintenance and proper alignment are crucial to ensure the coupling’s optimal performance in precision applications.

oldham coupling

Installation and Maintenance of Oldham Couplings

Proper installation and maintenance are crucial for ensuring the optimal performance and longevity of an Oldham coupling. Here are the steps to install and maintain an Oldham coupling:

Installation:

  • 1. Inspect the Components: Before installation, carefully inspect the Oldham coupling’s hubs and center disc for any signs of damage or wear.
  • 2. Shaft Preparation: Ensure that the shafts are clean and free from any debris or burrs. Make sure the shaft diameters match the hub bores and keyway dimensions.
  • 3. Center Disc Alignment: Align the center disc with the two hubs so that the slots or keyways on the center disc fit into the corresponding slots on the hubs.
  • 4. Secure the Hubs: Slide the hubs onto the shafts and fasten them securely using appropriate fasteners such as screws or clamps.
  • 5. Tighten Fasteners: Carefully tighten the fasteners according to the manufacturer’s recommendations. Be cautious not to over-torque, as it may lead to distortion or damage to the components.
  • 6. Check Misalignment: Verify that the Oldham coupling can accommodate the required misalignment between the shafts without binding or excessive stress.

Maintenance:

  • 1. Regular Inspection: Periodically inspect the Oldham coupling for signs of wear, damage, or misalignment. Look for any unusual noises or vibrations during operation.
  • 2. Lubrication: Some Oldham couplings may require periodic lubrication for smooth operation. Check the manufacturer’s guidelines for the proper type and amount of lubricant.
  • 3. Replace Worn Components: If any part of the Oldham coupling shows significant wear or damage, replace it with a new component from the original equipment manufacturer (OEM).
  • 4. Alignment Check: Regularly check the alignment of the shafts and the coupling to ensure that the misalignment is within the specified limits.
  • 5. Environmental Considerations: Take into account the operating environment, such as temperature and humidity, and use appropriate materials and coatings to resist corrosion and wear.
  • 6. Follow Manufacturer Guidelines: Always adhere to the manufacturer’s installation, operation, and maintenance instructions to ensure safe and efficient coupling performance.

By following these installation and maintenance practices, an Oldham coupling can provide reliable torque transmission, compensate for misalignment, and contribute to the smooth operation of the connected machinery or equipment.

China Best Sales Gh-70X77 Oldham Type Coupling Cross Sliding Set Screw Coupling  oldham couplingChina Best Sales Gh-70X77 Oldham Type Coupling Cross Sliding Set Screw Coupling  oldham coupling
editor by CX 2024-04-15