Dynamic Trading Company

ROTEX® torsionally flexible jaw couplings are elastomer couplings characterized by a compact design.

In spite of low weights and mass moments of inertia of the elastomer couplings they are able to transmit high torques. The compact shaft couplings are characterized by a long service life and sound operating characteristics generated by allover machining.

Thanks to the elastomer (elastomer spider) between the coupling hubs of the jaw couplings shocks respectively torsional vibrations in the drive train are damped. The high temperature-resistant spider material T-PUR® (elastomer) is available in various degrees of hardness. The torsionally flexible ROTEX couplings are used in almost every range of general machinery and plant engineering.

• Flexible couplings
• Vibration-damping
• Axial plug-in, thus easy assembly
• Fail-safe shaft couplings
• Compensating for displacements (axial, radial, angular)
• Maintenance-free jaw couplings
• Spider material (elastomer): T-PUR

Additional Information:

• Delivery Time: Ready Stock

The torsionally flexible, fail-safe shaft coupling POLY-NORM AR is a compact two-part shaft coupling for torsional vibration-damping power transmission.

The hubs made of cast iron identical in design make the standard version POLY-NORM AR specifically low-priced.
For mounting the shaft coupling the hubs are simply pushed onto the shafts and fastened axially by means of setscrews.

Applications of our torsionally flexible, fail-safe shaft coupling:
The POLY-NORM AR shaft coupling is used in almost all fields of general engineering, here mainly in the pump industry.

• Two-part shaft coupling (pump coupling) for torsional vibration-damping power transmission
• Low-priced standard version
• Axial plug-in, easy assembly
• Maintenance-free
• Compact, short shaft distance dimension
• Applications: general engineering
• Axial fastening of hub by setscrew
• Complying with ATEX (acc. to EU directive 2014/34/EU)
• UKEX compliant (according to UKEX Directive SI 2016:1107)
• Customized corrosion protection on request
• Vibration-damping
• Axial, radial, angular compensation

Additional Information:

• Delivery Time: Ready Stock

With its unique wrap around Nitrile rubber connecting element, the Snap Wrap coupling eliminates the need for dismantling the connected equipment while inspecting or replacing the element – a major benefit when down-time on machinery can run into huge amount

Combined with a range of prebored hubs, a modular hub design and a spacer option, the Snap Wrap coupling is unsurpassed for quality, flexibility, speed for installation and maintenance.

With its twist-bind Nitrile rubber joint, the Snap Wrap coupling eliminates the need for removing the connected equipment while inspecting or replacing its part. This serves as an invaluable tool when the time is limited.

• Elastomeric member replacement (i.e., snapwrap) inspection without the need to disturb existing alignment.
• Less Downtime- Especially useful when time is of critical essence.
• Easy to Install
• Maintenance free- No Lubrication required
• Permits angular, axial, parallel or combination of these misalignments

Additional Information:

• Production Capacity: As per customer requirement
• Delivery Time: Ready Stock
• Packaging Details: Carton Box

Easy Installation

Alignment is quickly achieved by simply placing a straight edge across the outside diameter of the hubs. No special tools are needed, only a hexagon wrench for the locking of the taper bush.

Extra protection Against Failure

The Inter-linking hubs act as a additional safeguard, though the flexible element fails, the drive will be Maintained by the interaction of the jaws which are an integral part of the coupling hubs. The hubs are made of C.I. Jaws are unmachined.

A jaw coupling is a kind of power transmission coupling that is used to transfer torque while dampening system vibrations and accommodating misalignment, which protects other elements from damage. Jaw couplings are made of two parts: metallic hubs and an element called a spider.

• Easy to Install
• Maintenance free- No Lubrication required
• Spiders are available in Natural Rubber, PU and Hytrel depending on application.
• No metal-to-metal contact 
• Permits angular, axial, parallel or combination of these misalignments

Additional Information:

• Delivery Time: Ready Stock
• Packaging Details: Carton Box

• Allover machining – Inherently balanced
• No Lubrication, Maintenance free – Long life
• Compact design, High power to weight ratio
• Fail safe – Will perform even if spider fails
• Vibrations Damping, torsionally flexible
• Axial plug-in, easy to assemble

Additional Information:

• Delivery Time: Ready Stock
• Packaging Details: Carton Box

RRL coupling is a Jaw Spacer coupling which is known as Radially Removable/Removable L type coupling. Spacer lengths available are 90,100,140 and 180mm.

• Used in such locations as where rapid disconnection disrupts the drive or driven unit.
• Easy to assemble & disassemble.
• Disconnection of the spacer assemble assists to allow independent operation.
• Maintenance free- No Lubrication required
• No metal-to-metal contact 

• Torsionally flexible, compensate for angular, radial and axial shaft misalignment
• Intermediate rings loaded in compression
• Elastomers available in various shore hardness degrees
• Suitable for temperatures from –30°C to +100°C
• The elastic ring can be replaced only with move a part of the coupled machines (two part design).
• Bores up to max. 230 mm
• Torques up to TKn = 41,000 Nm / TKmax = 97,500 Nm
• Speeds up to max = 5,000 rpm

Additional Information:

• Delivery Time: Ready Stock