Golden Bearing Company
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Manufacturer Miki Pulley
ALS-R
ALS-R
ALS-020-R
Availability
Confirm at quotation
Miki Pulley · ALS-R · Jaw coupling · ALS-020-R · Authorised Distributor
Bore range
4-8 mm
Max speed
10000 min-1
Stiffness
43 N m/rad
Overall length
30 mm
- Manufacturer
- Miki Pulley
- Product Family
- Starflex ALS-R Couplings Catalogue
- Series
- ALS-R
- Designation
- ALS-020-R
- Configuration
- ALS-R
Miki Pulley ALS-020-R - catalogue engineering data for selection and quotation.
- Product Type
- Jaw coupling
- Industry
- Servo drives, precision automation, machine tools
Why Source Through Golden Bearing Company
Authorised industrial distributor
Engineering Support
Duty review, bore selection, and application engineering assistance
Authorised Manufacturer Data
Specifications published exactly as manufacturer catalogue data
Technical Assistance
Configuration, interchangeability, and spare element guidance
Product Overview
Miki Pulley ALS-020-R is a Starflex ALS-R jaw coupling with polyurethane elastomer R element (97 JIS A, tight-fit / pre-compressed element). Bore range 4-8 mm with maximum rotation speed 10000 min-1 and static torsional stiffness 43 N m/rad per verified manufacturer data.
Commercial Identification
Authoritative procurement identifiers for ERP, RFQ, and purchase order entry. Copy values directly where shown.
- Manufacturer
- Miki Pulley
- Product Family
- Starflex ALS-R Couplings Catalogue
- Series
- ALS-R
- Designation
- ALS-020-R
- Configuration
- ALS-R
Selection Guidance
Engineering checkpoints when specifying Miki Pulley ALS-020-R.
Engineering Specifications
Miki Pulley catalogue values for ALS-020-R. Parameters not tabulated for this model are omitted rather than estimated.
Key catalogue specifications
| Parallel misalignment | 0.10 mm |
|---|---|
| Angular misalignment | 1 deg |
| Axial displacement | 0 to +0.8 |
| Maximum rotation speed | 10000 min-1 |
| Static torsional stiffness | 43 N m/rad |
| Radial stiffness | 400 N/mm |
| Moment of inertia (max bore) | 1.09E-06 kg m2 |
| Mass (max bore) | 0.019 kg |
Engineering qualifications
| Qualification | Negative-direction axial displacement is not allowed. |
|---|---|
| Qualification | Maximum rotation speed does not account for dynamic balance. |
| Qualification | Stiffness values are measured at 20 deg C. |
| Qualification | Inertia and mass are measured at maximum bore diameter. |
| Qualification | Numeric bore entries are standard supported bore diameters restricted in rated transmission torque by shaft-connection holding power. |
| Qualification | Bores between minimum and maximum shown in the dimensions table may be compatible; unlisted bore arrangements require manufacturer consultation. |
| Qualification | Recommended paired-shaft tolerance is h7, with documented special tolerance for bore 35 mm where applicable. |
| Qualification | B = clamp type hub; R = element hardness 97 JIS A tight-fit type. |
Dimensions
Mounting envelope dimensions from verified Miki Pulley Starflex ALS-R manufacturer data.
Bore range
4-8 mm
Outside dia. (D)
20 mm
Overall length (L)
30 mm
Stiffness
43 N m/rad
| d1/d2 bore range | 4-8 mm |
|---|---|
| D | 20 mm |
| DB | 20 mm |
| L | 30 mm |
| L1/L2 | 10 mm |
| E | 10 mm |
| S | 1 mm |
| B | 5 mm |
| G | 6.5 mm |
| M | 1-M2.5 |
| Tightening torque | 1 N m |
Miki Pulley Catalogue Reference
Authoritative source for the engineering values published on this page.
Published data basis
Engineering values on this page are taken from verified Miki Pulley Starflex ALS-R manufacturer data for ALS-020-R. Stiffness values are measured at 20 deg C; maximum rotation speed does not account for dynamic balance. Parameters not shown require Miki Pulley manufacturer catalogue verification before design sign-off.
Applications
Typical Miki Pulley ALS-R applications for ALS-020-R.
Jaw coupling
Polyurethane R element
Replaceable elastomer
Servo and stepper drives
General machinery
Configuration and Bore Selection
R element: polyurethane elastomer at 97 JIS A hardness with tight-fit / pre-compressed element for Miki Pulley ALS-020-R.
ALS-R element
Starflex ALS-R uses polyurethane R element at 97 JIS A hardness. Bore-specific rated transmission torque values apply where shaft holding power limits duty.
Standard bore diameters and rated transmission torque
| 4 mm bore | 1.2 N m rated transmission torque |
|---|---|
| 5 mm bore | 1.6 N m rated transmission torque |
| 6 mm bore | 2.1 N m rated transmission torque |
| 7 mm bore | 2.2 N m rated transmission torque |
| 8 mm bore | 2.6 N m rated transmission torque |
| 9 mm bore | 3.0 N m rated transmission torque |
Frequently Asked Questions
Engineering and procurement answers for specification review and quotation.
What is Miki Pulley ALS-020-R?
Miki Pulley ALS-020-R is a Starflex ALS-R jaw coupling with polyurethane R element (97 JIS A, tight-fit construction). Verified performance, dimension and bore/torque tables are published on this page.
What bore sizes are published for ALS-020-R?
Standard bore diameters and rated transmission torque are listed in the Configuration section. Bore range: 4-8 mm.
What is the maximum speed of ALS-020-R?
Maximum rotation speed for ALS-020-R is 10000 min-1 per manufacturer data. This does not account for dynamic balance.
How do I request a quote for Miki Pulley ALS-020-R?
Send shaft bore, torque duty, speed and configuration context. Golden Bearing Company is an authorised Miki Pulley distributor and supports engineering-led identification without publishing price or stock on this page.
Request an Engineering Quote
Share Miki Pulley ALS-020-R designation, shaft bore, torque duty, speed and configuration context for authorised distributor quotation.