DFC Aluminum Alloy Plum Blossom Coupling for Servo Motors

Product Overview

The DFC aluminum alloy plum blossom coupling is a flexible jaw coupling designed to connect rotating shafts in servo motor systems, CNC machine tools and industrial automation equipment. It features two precision-machined metal hubs and a polyurethane (PU) elastic spider that transmits torque while helping absorb vibration and compensate for minor shaft misalignment.

With lightweight aluminum alloy hubs, an anodized surface finish and customizable shaft bore options, the DFC coupling is suitable for applications that require a compact connection, low rotational inertia and convenient installation.

Key Features

• Lightweight aluminum alloy hubs: Help reduce coupling weight and rotational inertia in motion-control applications.

• Elastic PU spider: Helps dampen vibration, absorb shocks and accommodate limited shaft misalignment.

• Keyway and clamping options: The appropriate shaft connection can be selected according to the required configuration.

• Anodized surface: Helps improve surface protection and resistance to oxidation.

• Customizable shaft bores: Different bore diameters can be specified for the driving and driven shafts, subject to model availability.

• Compact structure: Suitable for space-constrained mechanical transmission systems.

• Easy maintenance: The elastic spider can be inspected and replaced when the coupling design permits.

• OEM and custom manufacturing: Custom bore sizes and other non-standard requirements can be discussed with our engineering team.

Product Specifications

Please confirm the exact model drawing and technical data before ordering. Torque capacity, speed limit, bore tolerance, temperature range and permissible misalignment depend on the specific coupling size and spider configuration.

How Does a Plum Blossom Coupling Work?

A plum blossom coupling consists of two metal hubs with jaw-shaped projections and an elastic spider positioned between them. As the driving shaft rotates, the jaws transfer torque through the elastic element to the driven hub.

The PU spider provides a degree of flexibility that can help reduce vibration and compensate for small installation errors. It also makes the coupling suitable for many applications involving frequent starts, stops or changes in rotational direction.

The actual performance depends on the coupling geometry, elastomer properties, operating temperature, load and installation accuracy.

Typical Applications

The DFC aluminum alloy plum blossom coupling can be considered for:

• Servo motor and stepper motor drives

• CNC machine tools

• Industrial automation equipment

• Packaging and printing machinery

• Precision positioning systems

• Small and medium-sized mechanical transmission systems

Select the coupling according to the actual torque, speed, shaft dimensions, operating environment and alignment requirements of the application.

How to Select the Right DFC Coupling

Before ordering, please provide the following information:

1. Outer diameter and overall length: Identify the required coupling size.

2. Driving-side bore: Specify the first shaft diameter and connection type.

3. Driven-side bore: Specify the second shaft diameter. The two bore sizes may differ if supported by the selected model.

4. Keyway requirements: Confirm the keyway dimensions or clamping configuration.

5. Operating conditions: Provide the required torque, speed, temperature and duty cycle.

6. Installation requirements: Confirm available space and permissible shaft misalignment.

Our team can help verify the suitable configuration based on your drawing and application requirements.

Custom DFC Plum Blossom Couplings

We support inquiries for standard and customized DFC aluminum alloy plum blossom couplings. Depending on the design, customization may include shaft bore dimensions, keyway requirements, coupling size and material or surface-finish options.

Send us your shaft dimensions, target torque, operating speed and application details for a configuration review.

Request a Quote

Looking for a DFC plum blossom coupling for your servo motor, CNC machine or automation system?

Contact Apex Coupling with your required dimensions and application details. Our team can help you check model compatibility and discuss customized options.

Email: ella@apexcoupling.com
WhatsApp: +86 13437856962

Frequently Asked Questions

What is a plum blossom coupling?

A plum blossom coupling is a flexible jaw coupling that uses an elastic, flower-shaped spider between two metal hubs to transmit torque and help absorb vibration.

Can the two shaft bores have different diameters?

Yes, different driving-side and driven-side bore diameters may be available, depending on the selected model and manufacturing requirements. Confirm both bore sizes before ordering.

Is the DFC coupling suitable for servo motors?

It can be suitable for servo motor applications when its torque capacity, rotational speed, torsional behavior and shaft connection meet the application requirements.

What is the purpose of the PU spider?

The PU spider transmits torque between the hubs while providing elastic cushioning. Its properties affect stiffness, vibration damping, temperature resistance and service life.

Can DFC couplings be customized?

Custom bore sizes and other non-standard configurations may be available. Send your drawing or technical requirements for confirmation.