Jaw coupling / elastomeric coupling

This coupling is an elastomeric coupling with compact dimensions composed of two hubs made in steel UNI EN ISO 683-1:2018, fully turned and one elastomeric element. The hub's tooth profile is designed to allow the elastomeric element to work only by compression and not in shear, allowing for a longer life of the coupling in high reversal or load applications.

The presence of the elastomer assures:

• the possibility to absorb collisions and vibrations
• to compensate for unavoidable misalignments between the shafts
• silence during transmission
  

Description of the elastomeric element

The fundamental item of this coupling is the elastomeric element or elastomer, made in polyurethane and available in several hardness grades, for diff erent uses and applications. 

The elastomer is manufactured to resist ageing, scoring, fatigue, hydrolysis and UV radiations, promoting longer life operation. It also resists main chemical agents, like ozone, oils, grease and hydrocarbons. 

The elastomeric element becomes prestressed during the assembly between the relevant hub's teeth, in order to be able to transmit the motion without backlash, so torsionally rigid inside the prestressing load. 

The prestressed elastomer's surface is sufficiently wide to induce a low contact pressure on the tooth of the same elastomer, reducing permanent deformations and promoting a long life.

Shortinfo

• Made in steel fully turned with standard phosphating treatment
• Several elastomer hardnesses available 
• High torsional rigidity
• Electric insulation between the parts
• Statically balanced
• Version with integrated locking assemblies
  
• Up to 55 KNm and 200 mm bore diameters

On request

• Conformity to ATEX directive possible
• Specific treatments or version fully in stainless steel
• Manufacturing made to length and customizations for specific needs
• Connection to the Torque limiter’s (safety coupling) range possible

Backlash free jaw coupling in steel

• Made in steel fully turned with standard phosphating treatment
• Several elastomer hardnesses available 
• High torsional ridigity
• Electric insulation between the parts
• Statically balanced
• Version with integrated locking assemblies
  

Standard jaw coupling in steel

• Made in steel fully turned with standard phosphating treatment
• Several elastomer hardnesses available 
• High compensation of misalignments
• Vibration dampening
• Statically balanced
• Modularity of the components, with different assembly versions
  

Backlash free and standard jaw coupling in alluminium

• Made in aluminum fully turned
• Elastomer available in different hardness 
• Weight and inertia reduced
• Electrical insulation between the parties
• Statically balanced
• Modular components with different locking systems on the hubs
  

Backlash free jaw spacer coupling in alluminium

• Made of aluminum fully turned
• Elastomer available in different hardness
• Simple mounting thanks to the two piece clamp hub (type C)
• Radial assembly without removing the parts
• Electrical insulation between the parts