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DFC ROTEX GS Compatible Aluminum Jaw Coupling

Model Number
Check below, custom

DFC-14*22
DFC-20*25
DFC-20*30
DFC-25*30
DFC-25*34
DFC-30*35
DFC-30*40
DFC-35*32
DFC-35*50
DFC-40*50
DFC-40*55
DFC-40*66
DFC-45*55
DFC-50*55
DFC-55*49

DFC-55*78
DFC-65*80
DFC-65*90
DFC-105*140
DFC-120*160

Product Description

DFC ROTEX GS Compatible Aluminum Jaw Coupling Replacement

Product Overview

The DFC ROTEX GS coupling replacement is an aluminum alloy flexible jaw coupling developed as an aftermarket alternative for selected KTR ROTEX GS series coupling applications.

Designed for industrial power transmission systems, the DFC series features an aluminum alloy coupling body and an imported polyurethane (PU) elastic spider. Its curved jaw structure provides flexible torque transmission, vibration damping and compensation for minor shaft misalignment.

For customers using KTR ROTEX GS couplings, the DFC series offers an alternative sourcing option for maintenance, replacement and new equipment manufacturing.

Available in multiple sizes, the DFC aluminum jaw coupling provides different outer diameters, overall lengths and shaft bore options. Precision bore machining, clamping screw fastening and optional anodized surface treatment make it suitable for servo motors, CNC machinery, automation equipment and other industrial applications.

Apex Coupling is an independent manufacturer of industrial couplings in China, providing standard specifications and customized replacement solutions according to customer drawings and samples.

Please note: DFC is an Apex Coupling product series. It is not an original KTR product. Compatibility with a particular ROTEX GS model must be confirmed by comparing dimensions, spider configuration and operating requirements.

Key Features of DFC ROTEX GS Compatible Couplings

1. Alternative to Selected KTR ROTEX GS Couplings

The DFC series is designed for customers seeking an alternative to selected KTR ROTEX GS flexible jaw coupling applications.

It provides a similar application concept using aluminum alloy hubs and a polyurethane elastic spider. It can be considered for coupling replacement, machinery maintenance and OEM equipment projects after dimensional and technical verification.

2. Aluminum Alloy Coupling Hubs

The main coupling body is manufactured from aluminum alloy, offering a lightweight structure and good mechanical strength.

The compact design is suitable for servo motor connections, CNC machine tools, lead screw systems and other equipment where installation space and coupling weight are important considerations.

3. Imported Polyurethane Spider

The DFC coupling uses an imported polyurethane (PU) elastic element positioned between the coupling hubs.

The elastic spider helps absorb torsional vibration, cushion impact loads and compensate for radial, angular and axial shaft misalignment within the allowable limits of the selected coupling.

4. Curved Jaw Design

The curved jaw structure is designed to provide zero rotational clearance when correctly assembled with a suitable elastic spider.

This design supports forward and reverse rotation and is suitable for machinery requiring responsive motion transmission.

5. H6 Precision Bore

The supplied specifications indicate H6 precision inner bore processing. Different bore diameters are available to match various motor shafts and driven equipment shafts.

6. Grade 12.9 Clamping Screws

The DFC series uses a clamping screw fastening structure. Grade 12.9 high-strength screws are specified for secure shaft mounting.

7. Optional Anodized Surface Treatment

Anodizing is available as an optional surface treatment for improved surface protection and appearance.

The supplier specifies an approximately 30% service-life improvement compared with traditional surface treatment methods. Actual results depend on the comparison standard, working environment and operating conditions.

8. Multiple Sizes and Custom Manufacturing

The DFC series covers multiple outer diameters, lengths and bore ranges. Non-standard bore combinations and customized dimensions can be discussed according to original coupling samples, technical drawings or equipment requirements.

Technical Specifications

ParameterSpecification
Product NameDFC ROTEX GS Compatible Jaw Coupling
Apex Product SeriesDFC
Replacement ReferenceSelected KTR ROTEX GS Series Applications
Product TypeFlexible Jaw Coupling
StructureCurved Jaw / Elastic Spider
Main Body MaterialAluminum Alloy
Elastic ElementImported Polyurethane (PU)
Bore ToleranceH6, as specified
Fastening MethodClamping Screw
Screw Grade12.9
Surface TreatmentAnodizing Optional
BacklashZero-backlash design when correctly assembled
Misalignment CompensationRadial, Angular and Axial
RotationForward and Reverse
Standard or NonstandardStandard and Customized
CustomizationOEM / ODM / OBM
ApplicationsServo Motors, CNC Machines, Lead Screws and Industrial Machinery
CertificationISO 9001; BV Certificate
Warranty1 Year
Place of OriginGuangdong, China
BrandApexcoupling

Torque specification: The original product title mentions 1000 N·m, but the supplied technical data does not confirm a model-specific rated torque. Please contact Apex Coupling to verify the torque capacity of the selected size.

DFC Coupling Dimensions and Available Sizes

The following dimensions are based on the supplied DFC product specifications. All dimensions are in millimeters (mm).

No.Outer Diameter (D)Length (L)Available Bore Diameter
114223–7
220254–10
320304–10
425304–12
525344–12
630355–16
730405–16
835506–19
940508–24
1040558–24
1140668–24
1245558–25
1345668–25
14557812–30
15659014–40
168011419–45
179512622–55

The bore ranges indicate available machining options. The two coupling hubs can be configured with different bore diameters according to the connected shaft dimensions.

For ROTEX GS replacement projects, please provide the original coupling model and dimensions so that the corresponding DFC configuration can be checked.

Applications of ROTEX GS Compatible DFC Couplings

The DFC series is suitable for industrial power transmission systems requiring flexible shaft connections and compact coupling structures.

Typical applications include:

  • Servo motor drive systems

  • CNC machine tools

  • Ball screw and lead screw transmission systems

  • Industrial automation equipment

  • Packaging machinery

  • Precision mechanical equipment

  • Construction machinery

  • Metallurgical equipment

  • General industrial power transmission systems

The polyurethane spider helps reduce vibration and compensate for minor shaft misalignment, supporting smooth operation in suitable applications.

How to Select a DFC ROTEX GS Replacement Coupling

When replacing an existing KTR ROTEX GS coupling, checking only the outer diameter is not sufficient. The following parameters should be compared before ordering.

1. Original KTR ROTEX GS Model

Provide the original model number or product identification information. This helps identify the intended replacement size.

2. Outer Diameter and Overall Length

Measure the outer diameter and overall length of the existing coupling to check the available installation space.

3. Shaft Bore Diameters

Confirm the bore diameter of both coupling hubs. Different bore combinations may be required for the motor shaft and driven shaft.

4. Keyway and Fastening Configuration

Check the original shaft connection, including keyway dimensions and clamping screw position.

5. Elastic Spider Dimensions

Compare the spider profile, dimensions, material and hardness. A similar outer diameter does not automatically guarantee interchangeability.

6. Torque and Rotational Speed

Provide normal operating torque, peak torque and rotational speed. The selected replacement must meet the actual mechanical operating requirements.

7. Operating Environment

Consider temperature, oil exposure, moisture, chemicals and other environmental conditions when selecting the polyurethane spider.

Need help identifying a replacement? Send Apex Coupling the original ROTEX GS model number, product photos or dimensional drawings. Our team can review the information and help identify a suitable DFC configuration.

Why Choose Apex Coupling for ROTEX GS Replacement?

Apex Coupling manufactures and supplies flexible couplings and industrial power transmission components for international B2B customers.

  • Direct manufacturer supply: Source DFC coupling alternatives directly from a Chinese manufacturer.

  • ROTEX GS replacement solutions: DFC products are developed for selected ROTEX GS coupling applications.

  • Multiple specifications: A range of outer diameters, lengths and bore options.

  • Quality components: Aluminum alloy hubs, imported PU spiders and grade 12.9 clamping screws as specified.

  • Custom manufacturing: Non-standard bore combinations and dimensions according to drawings or samples.

  • OEM and ODM support: Customized production for machinery manufacturers, distributors and industrial maintenance suppliers.

Frequently Asked Questions

Is the DFC coupling a replacement for KTR ROTEX GS couplings?

The DFC series is developed as an aftermarket alternative for selected KTR ROTEX GS coupling applications. Exact compatibility must be confirmed by comparing the original model, dimensions, bore configuration, spider geometry and operating specifications.

Is the DFC coupling an original KTR ROTEX GS product?

No. DFC is an independent Apex Coupling product series. It is not manufactured or supplied as an original KTR product.

What material is used in the DFC coupling?

The coupling hubs are made from aluminum alloy, and the elastic spider is made from imported polyurethane (PU), according to the supplied specifications.

Can I use a DFC coupling to replace my existing ROTEX GS coupling?

Potentially, yes, if the dimensions, shaft connections, elastic element and operating requirements match. Please provide the original model number or technical drawing for compatibility verification.

Are different bore sizes available?

Yes. The DFC series offers multiple bore options, and customized bore combinations can be discussed according to your shaft dimensions.

Can Apex Coupling manufacture customized ROTEX GS alternatives?

Yes. Apex Coupling supports OEM and ODM manufacturing based on customer drawings, samples and technical requirements.

How can I identify the correct DFC replacement model?

Provide the original ROTEX GS model, outer diameter, overall length, both bore diameters, keyway dimensions and operating torque. Our team can help review the appropriate DFC configuration.

Request a Quote for ROTEX GS Coupling Replacements

Looking for a dependable ROTEX GS coupling replacement for servo motors, CNC machines or industrial transmission equipment?

Apex Coupling supplies DFC aluminum alloy flexible jaw couplings with imported PU spiders, multiple bore configurations and OEM customization.

Send us your original ROTEX GS model number, dimensions, photos or technical drawing. We will help check the suitable DFC replacement configuration.

Website: https://www.apexcoupling.com/

Email: ella@apexcoupling.com

WhatsApp: +86 13437856962

KTR ROTEX GS replacement, ROTEX GS compatible coupling, ROTEX GS alternative, ROTEX GS jaw coupling, aluminum jaw coupling, PU spider coupling, DFC flexible coupling

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