Jaw Spider Coupling

Discover unparalleled coupling performance with O.S Seals' Jaw Spider Couplings, engineered for precision, durability, and seamless power transmission in diverse industrial applications.

Jaw Spider Coupling

Jaw & Spider Coupling Advantages

O.S Seals jaw couplings accept shaft misalignment, offering high load capacity while maintaining a damping effect on vibration and thermal conductivity.  Each of our aluminium jaw and spider coupling models offers different torque ratings and performance levels determined by the durometer of the elastomer spider, delivering unprecedented adaptability for everything from general-purpose motor connections to demanding servo motor applications.

  • Fail-safe design and long service life
  • Transmits up to 387 ft-lbs. (525 Nm) of torque
  • Low reaction loads
  • Low to zero backlash, depending on the model
  • High torque capacity and torsional stiffness
  • Quiet operation
  • Easy to install

The Best Jaw & Spider Couplings

Spider couplings are meticulously crafted from premium materials, ensuring durability and reliability even in demanding applications. Our couplings’ innovative design allows for high torque transmission and exceptional misalignment compensation, reducing wear and tear on connected components and minimizing maintenance costs. O.S Seals Jaw and Spider couplings deliver unparalleled value, delivering premium, long-lasting coupling solutions for industrial applications at competitive prices. For the best jaw and spider couplings on the market, O.S Seals is your solution.

Jaw Coupling Product Options

O.S Seals offers high-quality elastomer jaw-type couplings with a pilot bore (minimum bore) or a bored-to-size option. Select from four spider element durometers based on your misalignment capacity and performance requirements. All the elastomers used in our couplings provide good resistance to oils and chemicals.

ALS-R Jaw-Type Couplings

The ALS-R curved hub shaft jaw coupling features a Curved-Jaw profile design, offering a slight pre-compression of the spider and Type “R” elastomer spider element while providing 97 shore hardness. This hub aluminium jaw coupling model offers high torque, high torsional stiffness, and zero backlashes, with a limited capacity for shaft misalignment.

ALS-Y Jaw-Type Couplings

The ALS-Y hub aluminium jaw coupling features a curved jaw profile, offering a slight pre-compression of the spider and Type “Y” elastomer spider element while providing 90-shore hardness. This model offers a good balance of performance and flexibility for shaft misalignment. The tightly fit spider element creates a zero-backlash connection and has a moderate level of torsional stiffness for system responsiveness.

ALS -B Jaw-Type Couplings

The ALS-B hub aluminium split spider shaft coupling features a straight jaw profile and Type “B” elastomer spider element while providing 97 shore hardness. This model offers a looser fit for handling more significant amounts of shaft misalignment with minimal backlash while delivering a high torque capacity.

AL SPRFLEX Jaw-Type Couplings

The AL SPRFLEX curved hub shaft jaw coupling features a straight jaw profile and (NBR) Nitrile rubber spider element. This model offers high flexibility, high dampening, and low backlash operation. SPRFLEX couplings are waterproof and oilproof, though excessive amounts of oil and water may cause deterioration.

Hub Shaft Connection Options

ALS-R, ALS-Y, and ALS-B elastomer jaw-type coupling models come with a clamping hub or set-screw/keyway hub. Our AL SprFlex couplings are offered with a pilot bore, set-screw/keyway hub, or clamp hub.

  • Pilot Bore: Less costly option, allows the customer or end-user to machine the bore to their specifications.
  • Key/Set Screw Style: Enables a simple shaft connection, allowing for high torque transmission.
  • Clamp Style: Designed for easy mounting and removal, it provides a secure shaft connection.  It is typically keyless; however, keyways are available upon request.

Contact O.S Seals for Jaw & Spider Couplings Today

O.S Seals offers near zero backlash jaw and spider couplings, providing a failsafe design and long service life to meet your project needs, with custom configurations available. Contact us now to discuss your application.

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