• Debido al Tifón (Hagibis) que azotó Japón esta semana (12 de Oct), algunos productos de importación se ha visto afectados. Gracias por su comprensión.
    Due to the Typhoon (Hagibis) in Japan last week (12 Oct), some imported products may be delayed. Thank you for your understanding.

Star Flex ALS-R (Part Numbers)

Star Flex ALS-R
  • Volume Discount

Element hardness 97JIS A used, designed to use preliminary compression with no backlash. Supports a wide range of applications, from simple servo to general purpose motor with high torque.

· Polyurethane elastomer used for element. So, the transmission torque is more than twice that of conventional jaw coupling.
· Design to distribute pre-compression, and so can be used with no backlash. (ALS-Y/R type)
· Power transmission through polyurethane elastomer with rubber elastic force. It has excellent vibration and impact absorption.
· Conforms to "RoHS" EU Directive, prohibiting the use of 6 hazardous chemical substances such as mercury and lead.


Part Number

Configured Part Number is shown.

Part Number
Part NumberVolume DiscountDays to Ship RoHSAllowable Misalignment Allowable Torque Range
Hole diameter d1
Hole diameter d2
Full Length
Max. Rotational Speed Range
Feature Body Material Allowable Torque
Maximum Rotation Speed
Allowable Angular Misalignment
Allowable Lateral Misalignment Range
Allowable Lateral Misalignment
Operating Temperature Range
Allowable Axial Clearance (±)
Moment of Inertia
Shaft Hole Specifications Shaft hole finished Keyway Standard


Basic Information

Type Jaw Type Application Standard / Servo Motor / Stepping Motor / Encoder Category Coupling body
Buffer Part Material Polyurethane Resin

Additional Products in this Category

Tech Support