DGHS Aluminum Alloy Cross Slider Coupling – Short Clamping Type, Oldham Structure, Low Inertia

Factory direct | High-strength aluminum alloy hubs | Imported PA66 slider | Low moment of inertia | Short clamping design | Compensates radial and angular misalignment | Detachable design | Clamping screw fastening | OEM/ODM/OBM

The Apexcoupling DGHS series is a short clamping type cross slider coupling (Oldham structure) designed for high-performance power transmission in precision motion control applications. Featuring high-strength aluminum alloy hubs and an imported PA66 (polyacetal) slider, this coupling delivers excellent wear resistance, corrosion resistance, and electrical insulation. The sliding design effectively compensates for radial and angular misalignment, while the short clamping configuration provides low moment of inertia – ideal for servo motors, encoders, pumps, and positioning slides. The detachable design and clamping screw fastening ensure easy installation and maintenance.

✅ Low inertia, high torque capacity – perfect for applications requiring rapid acceleration and deceleration.

Key Technical Specifications

🔧 Custom bores, outer diameters, and special materials available. Contact us with your specifications.

Product Structure

1. Two Aluminum Hubs – High-strength aluminum alloy, precision-machined with axial grooves, clear anodized finish.

2. Center Cross Slider – Imported PA66 (polyacetal) engineering plastic, with matching slots at 90°.

3. Clamping Screws – Secure shaft fastening with clamping hub design.

💡 How it works: The two hubs have axial grooves on their inner faces. The center slider has matching slots at 90° on each side. As the coupling rotates, the slider slides within the grooves, accommodating radial and angular misalignment while transmitting torque.

Product Features & Advantages

Oldham Coupling – Key Advantages

Oldham couplings (cross slider couplings) are widely used in precision motion control applications due to their unique characteristics:

• Large radial misalignment compensation – Accommodates significant lateral shaft misalignment

• Low moment of inertia – Ideal for high-speed, rapid acceleration applications

• Zero backlash – Precision fit ensures accurate positioning

• Electrical insulation – PA66 slider provides electrical isolation between shafts

• Simple maintenance – Detachable design allows easy slider replacement

✅ Oldham couplings are particularly well-suited for servo motors, stepper motors, encoders, resolvers, tachometers, positioning slides, and dosing pumps.

Applications

• Servo Motors – High-precision motion control, low inertia requirement

• Stepper Motors – Accurate positioning, no lost motion

• Encoders & Resolvers – Precision position feedback

• Positioning Slides – Linear motion systems

• Pumps & Dosing Pumps – Smooth, reliable power transmission

• Actuators – Precision actuation systems

• Potentiometer Drives – Smooth, low-backlash connections

• Machinery Repair Shops – Replacement and upgrade parts

• Farms & Agriculture – Light-duty agricultural equipment

• General Machinery – Light to medium-duty power transmission

Why Choose Apex Coupling for DGHS Cross Slider Couplings?

FAQ

Q: What is a cross slider coupling (Oldham coupling)?
A: A cross slider coupling (also called an Oldham coupling) consists of two aluminum hubs with axial grooves and a center slider with matching slots at 90°. It transmits torque while accommodating radial and angular misalignment through the sliding action of the center slider.

Q: What is the advantage of the short clamping design?
A: The short clamping design provides low moment of inertia, making it ideal for applications requiring rapid acceleration and deceleration, such as servo motors and high-speed positioning systems.

Q: What materials are used?
A: The hubs are made of high-strength aluminum alloy with clear anodized finish. The slider is made of imported PA66 (polyacetal) engineering plastic – offering excellent wear resistance, corrosion resistance, and electrical insulation.

Q: What misalignment can the coupling compensate for?
A: The sliding design effectively compensates for radial (eccentricity) and angular misalignment.

Q: Does the coupling have backlash?
A: The DGHS series features zero backlash with precision slider fit – ideal for servo systems and precision positioning.

Q: What is the torque and speed rating?
A: Rated torque is 500 N·m and maximum speed is 1000 RPM. Specific ratings vary by model size.

Q: Is the coupling easy to install?
A: Yes. The detachable design allows for easy installation and maintenance without moving connected shafts.

Q: Does the coupling require lubrication?
A: No. The PA66 slider is self-lubricating – maintenance-free operation.

Q: Can I get a custom coupling?
A: Yes. We offer OEM, ODM, and OBM support – custom bores, outer diameters, and materials available.

Request a Quote

Send us your bore size, torque, speed, and application details. Our engineers will recommend the optimal model and provide a quotation within 24 hours.