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Curved-Jaw Spider Couplings

Torsionally flexible shaft couplings, curved-jaw spider couplings combine shock absorbancy with misalignment capabilities, whilst remaining fail-safe. 

Curved-jaw Spider Couplings are displayed as components, if you require a complete coupling, please add 2 x Hubs and 1 x Element to your basket.

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KTR Spider coupling
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What are the features and benefits of spider couplings?

Torsionally flexible

Curved-jaw spider couplings have a high level of torsional elasticity, meaning that they are accommodating of both parallel and angular misalignments. 

Dampening

These couplings are dampening of both vibration and shock loads, helping to protect surrounding equipment from harsh operating conditions. 

Fail-safe

Curved-jaw Spider couplings are fail safe. This means that even if the spider element fails, the coupling will continue to function. This reduces the risk of damage to surrounding equipment, as well as unplanned downtime. 

Maintenance-free

These couplings do not require any further maintenance after fitting as they are lubrication free. This eliminates the need for downtime, as well as costly maintenance practices.

Curved-Jaw Spider Couplings FAQs

What is a curved-jaw spider coupling?

A curved-jaw spider coupling is a flexible shaft coupling designed to connect two rotating shafts while reducing vibration, shock, and minor misalignment. The curved jaws and elastomer spider help transmit torque smoothly in industrial machinery.

What are curved-jaw couplings used for?

Curved-jaw couplings are commonly used in:

  • Electric motors

  • Pumps

  • Gearboxes

  • Compressors

  • Conveyor systems

  • General industrial power transmission equipment

They help protect machinery while maintaining efficient torque transfer.

How do I choose the right curved-jaw coupling?

When selecting a curved-jaw spider coupling consider:

  • Shaft size

  • Required torque

  • Speed (RPM)

  • Operating environment

  • Misalignment tolerance

  • Spider material

Choosing the correct specification ensures optimal performance and longer service life.

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