Rotex

What Are ROTEX Jaw Couplings?

Rotex jaw couplings are torsionally flexible couplings designed to transmit torque while compensating for misalignment and damping vibrations. These flexible jaw couplings consist of two hubs and an elastomer spider made from high-performance T-PUR® material. They’re ideal for applications where space is limited and reliable torque transmission is critical.

Each ROTEX coupling is engineered with a compact profile and can be mounted both horizontally and vertically. Offered in various hub configurations including stainless steel jaw couplings they support versatile industrial applications with ease.

Technical Specifications & Variants of ROTEX Jaw Couplings

  • Torque Range: 7.5 Nm to 35,000 Nm
  • Spider Hardness Options: Orange (92 ShA), Purple (98 ShA), Green (64 ShD)
  • Standard Configurations:
ROTEX AH & SH (split hubs)
ROTEX Clamping Hubs / Clamping Ring Hubs
ROTEX Standard (feather keyway)
  • Materials: Steel, stainless steel, cast iron, aluminium
  • Max Torsion Angle: 5° across all sizes
ROTEX jaw couplings are available in multiple bore sizes to match your exact shaft design. We also offer variants tailored to different oil seal types, ensuring compatibility with shaft-mounted sealing systems.

Why Choose KTR ROTEX Couplings?

KTR’s ROTEX series is trusted globally for durability and precision. The combination of robust metal hubs and T-PUR® elastomers ensures efficient torque transmission even in challenging operating conditions. With ATEX-compliance, a wide range of bore sizes, and preconfigured hub styles, KTR’s offering stands out in the jaw type coupling category.

Deepee Rubber supplies authentic KTR-certified ROTEX jaw couplings backed by technical documentation and on-demand consultation support. As a leading rubber products supplier, we ensure rapid availability and customization for your application.

Installation and Maintenance

  • Installation: Simply push-fit hubs onto the shaft and secure with setscrews or clamps based on the hub type.
  • Maintenance Tips:

Regularly inspect spider for wear or deformation
Use correct preload and alignment tools
Replace the elastomer element based on application stress

ROTEX jaw couplings are compatible with systems using shaft seals, including rotary shaft seal and radial shaft seal interfaces. Correct seal selection enhances coupling lifespan.

High-Performance Jaw Couplings

  • Rotex jaw couplings offer precise, flexible, and compact torque transmission
  • Suitable for applications with misalignment, vibration, and moderate shocks
  • Wide range of sizes, materials, and spider hardness options
  • Available in both premium and cheap jaw coupling variants
  • Trusted by OEMs for high-speed, compact drive applications

FAQs

What Is The Function Of Coupling?

A coupling transmits power between two rotating shafts while accommodating misalignments and damping vibrations or shocks.

The best type depends on the application. For compact, reliable power transmission in aligned systems, jaw type couplings like ROTEX are ideal.
Jaw couplings transfer torque via elastomeric elements placed between two interlocking hubs. The elastomer absorbs shocks and misalignment.

They are not suitable for high angular misalignment and may fail under extreme overloading if the spider is worn or improperly installed.

Jaw couplings are used in pumps, compressors, gearboxes, conveyors, and industrial drives that require compact, torsionally flexible connections.