• Starflex

Starflex: Complete Couplings

The Starflex Jaw Coupling has a simple construction consisting of two aluminum hubs and a polyurethane elastomer insert.

The elements are available in three different configurations, varying in hardnesses and tightness of fit, so that a selection dependent on torque transmission responsiveness and amount of misalignment can be made.

Since the design pre-compresses the element, it can also be used to deliver rotation without backlash. Starflex couplings are available with either clamping hubs (Type ALS-B) or set screw hubs (Type ALS-H).

Highlights and Features

The Starflex flexible jaw shaft coupling is widely used, with confidence, in a multitude of applications. With a large range of options, robust design and damping features, the Starflex shaft coupling is a cost effective leader in its field. product advantages include;

  • Equalizes offsets in the event of shaft misalignment.
  • Secure transmission of torques from 1.2Nm up to 1050 Nm
  • Damping capabilities in the event of resonance problems.
  • High torsional stiffness.
  • Zero backlash operation.
  • Three element types to suited different torque and dampening requirements:
    • RED: 97 Sh-A, tight fit.
    • YELLOW: 90 Sh-A, tight fit
    • BLUE: 97 Sh-A, loose fit

 

Starflex ALS-B: Clamp Type

Specifications:

ModelTorqueMisalignmentMax rotation speed (RPM)Static Torsional Stiffness (Nm/rad)Radial Stiffness (N/mm)Moment of innertia (kgm^2)Mass (kg)
Nominal (Nm)Max (Nm)Parallel (mm)Angular (deg)Axial (mm)
ALS-014-R240.11+0.610000213801.98E-070.007
ALS-020-R5100.11+0.810000434001.09E-060.019
ALS-030-R12.5250.11+1.0100001366506.19E-060.045
ALS-040-R17340.11+1.210000155017004.01E-050.16
ALS-055-R601200.11+1.47000200013501.63E-040.34
ALS-065-R1603200.11+1.55900310014003.69E-040.54
ALS-080-R3256500.11+1.84800600017101.04E-031.00

Red spider element: 97 Shore A, Tight-fit type

 

ModelTorqueMisalignmentMax rotation speed (RPM)Static Torsional Stiffness (Nm/rad)Radial Stiffness (N/mm)Moment of innertia (kgm^2)Mass (kg)
Nominal (Nm)Max (Nm)Parallel (mm)Angular (deg)Axial (mm)
ALS-014-Y1.22.40.11+0.610000122001.98E-070.007
ALS-020-Y360.151+0.810000242101.09E-060.019
ALS-030-Y7.5150.151+1.010000733306.19E-060.045
ALS-040-Y10200.11+1.2100007609404.01E-050.16
ALS-055-Y35700.151+1.47000140011601.63E-040.34
ALS-065-Y951900.151+1.55900210012003.69E-040.54
ALS-080-Y1903800.151+1.84800400014301.04E-031.00

Yellow spider element: 90 Shore A, Tight-fit type

 

ModelTorqueMisalignmentMax rotation speed (RPM)Static Torsional Stiffness (Nm/rad)Radial Stiffness (N/mm)Moment of innertia (kgm^2)Mass (kg)
Nominal (Nm)Max (Nm)Parallel (mm)Angular (deg)Axial (mm)
ALS-030-B12.5250.171-0.2 / +1.010000904606.07E-060.045
ALS-040-B17340.21-0.5 / +1.2100004006404.00E-050.16
ALS-055-B601200.221-0.2 / +1.4700011504001.63E-040.34
ALS-065-B1603400.251-0.6 / +1.5590020008003.69E-040.54
ALS-080-B3256500.281-0.9 / +1.8480045506001.04E-031.00

Blue spider element: 97 Shore A, Loose-fit type

 

Dimensions:

Starflex ALS Clamp dimensions

Modeld1 - d2DDBLL1-L2ESBGMTightening Torque (Nm)
MinMax
ALS-014361416.1227813.54.81-M20.4
ALS-020482020301010156.51-M2.51
ALS-03061430303511131.55.510.51-M31.5
ALS-0408204043.2662516212.5151-M57
ALS-05510285555783018210.5201-M614
ALS-06514356569.89035202.511.524.51-M830
ALS-080194580801144524311.5301-M830

 

 

Starflex ALS-H: Set Screw Type

Specifications:

ModelTorqueMisalignmentMax rotation speed (RPM)Static Torsional Stiffness (Nm/rad)Radial Stiffness (N/mm)Moment of innertia (kgm^2)Mass (kg)
Nominal (Nm)Max (Nm)Parallel (mm)Angular (deg)Axial (mm)
ALS-014-R240.11+0.634100213801.91E-070.007
ALS-020-R5100.11+0.823800434001.08E-060.018
ALS-030-R12.5250.11+1.0159001366506.25E-060.047
ALS-040-R17340.11+1.211900155017003.87E-050.15
ALS-055-R601200.11+1.48700200013501.66E-040.35
ALS-065-R1603200.11+1.57400310014003.57E-040.51
ALS-080-R3256500.11+1.86000600017101.06E-031.01
ALS-095-R4509000.11-0.5 / +2.050001000042002.24E-031.5
ALS-105-R52510300.151-0.9 / +2.045001200050003.72E-032.05

Red spider element: 97 Shore A, Tight-fit type

 

ModelTorqueMisalignmentMax rotation speed (RPM)Static Torsional Stiffness (Nm/rad)Radial Stiffness (N/mm)Moment of innertia (kgm^2)Mass (kg)
Nominal (Nm)Max (Nm)Parallel (mm)Angular (deg)Axial (mm)
ALS-014-Y1.22.40.11+0.634100122001.91E-070.007
ALS-020-Y360.151+0.823800242101.08E-060.018
ALS-030-Y7.5150.151+1.015900733306.25E-060.047
ALS-040-Y10200.11+1.2119007609403.87E-050.15
ALS-055-Y35700.151+1.48700140011601.66E-040.35
ALS-065-Y951900.151+1.57400210012003.57E-040.51
ALS-080-Y1903800.151+1.86000400014301.06E-031.01
ALS-095-Y2655300.11-0.5 / +2.05000600024002.24E-031.5
ALS-105-Y3106200.151-0.9 / +2.04500700040003.72E-032.05

Yellow spider element: 90 Shore A, Tight-fit type

 

ModelTorqueMisalignmentMax rotation speed (RPM)Static Torsional Stiffness (Nm/rad)Radial Stiffness (N/mm)Moment of innertia (kgm^2)Mass (kg)
Nominal (Nm)Max (Nm)Parallel (mm)Angular (deg)Axial (mm)
ALS-030-B12.5250.171-0.2 / +1.015900904606.13E-060.045
ALS-040-B17340.21-0.5 / +1.2119004006403.86E-050.15
ALS-055-B601200.221-0.2 / +1.4870011504001.66E-040.35
ALS-065-B1603200.251-0.6 / +1.5740020008003.57E-040.51
ALS-080-B3256500.281-0.9 / +1.8600045506001.06E-031.01
ALS-095-B4509000.321-0.5 / +2.05000120008002.22E-031.48
ALS-105-B52510500.361-0.9 / +2.045001500020003.70E-032.02

Blue spider element: 97 Shore A, Loose-fit type

 

Dimensions:

Starflex ALS Key Way dimensions

Modeld1 - d2DLL1-L2ESC
MinMax
ALS-01436.514227813.5
ALS-02049.62030101015
ALS-030614303511131.55.5
ALS-04082240662516212.5
ALS-055102855783018215
ALS-0651438659035202.517.5
ALS-0801945801144524322.5
ALS-0951955951265026325
ALS-105196010514056283.528

 

 

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