Shaft Couplings > Jaw & Spider Couplings

Jaw and Spider Couplings

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Elastomer Couplings

ALS Coupling Line-up

The ALS is a simple jaw & spider shaft coupling, with sintered aluminum hubs and polyurethane elastomer spider elements available different hardness values. Customers may choose depending on performance requirements. The profile of the element allows for pre-compression with no backlash.

Available in pilot bore, keyed, and clamp style.

This coupling may be used in applications from general purpose motor connections, to simple servo applications with high torque.

 

ALS-R (Tight fit elastomer)
ALS-Y (Medium fit elastomer)
ALS-B (Loose fit elastomer)

ALS-R

Tight fit elastomer

ALS-Y

Medium fit elastomer

ALS-B

Loose fit elastomer

ALS-SGN

 

AL-SPR 

 


ALS-R model

ALS-R Jaw and Spider Couplings

The ALS-R model utilizes a 97 JIS A hardness polyurethane elastomer spider, with the spider profile and fit designed with a tight fit to allow no backlash.

  • Maximum working torque: 387.22 ft-lbs, (525Nm)
  • Hole diameter range: 0.118” ~ 2.362”, (3mm ~ 60mm)
  • Ambient operating temperature: -22F ~ 176F, (-30 ℃ ~ 80 ℃)
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ALS-Y model

ALS-Y Jaw and Spider Couplings

The ALS-Y model utilizes a 90 JIS A hardness polyurethane elastomer spider, with the spider profile and fit designed to allow no backlash. This coupling may be used in applications from general purpose motor connections, to simple servo applications with high torque. The element is of a lower hardness than the ALS-R, thereby suppressing axial reaction force.

  • Maximum working torque: 228.64 ft-lbs, (310Nm)
  • Hole diameter range: 0.118” ~ 2.362”, (3mm ~ 60mm)
  • Ambient operating temperature: -22F ~ 176F, (-30 ℃ ~ 80 ℃)
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ALS-B coupling

ALS-B Jaw and Spider Couplings

The ALS-B model utilizes a 97 JIS A hardness polyurethane elastomer spider, with the spider profile designed for a loose fit. This allows for misalignment while providing high torque transmission.

  • Maximum working torque:  387.22 ft-lbs,   (525Nm)
  • Hole diameter range:  0.315” ~ 2.362”,  (8mm ~ 60mm)
  • Ambient operating temperature:    -22F ~ 176F,  (-30 ℃ ~ 80 ℃)
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ALS-B coupling

ALS-SGN Jaw and Spider Couplings

  • Maximum RPM: 22,000
  • Maximum transmittable torque: 810 Nm (597 ft-lbs )
  • Ambient operating temperature: -40 C-120 C (-40 F – 248 F)

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ALS-B Jaw Spider Coupling

 

AL-SPR Jaw and Spider Couplings

This simple jaw and spider coupling features a nitrile rubber element between two sintered aluminum hubs. Using aluminum in the hubs decreases moment of inertia on starts and stops. AL couplings are available in standard bore sizes with key and setscrew, or pilot bore. Bores may also be machined to customer specifications upon request.

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