ManufacturerMiki Pulley
ALS-020-R
Miki Pulley Starflex jaw coupling with R element (97 JIS A polyurethane, tight-fit construction).
Performance specifications
| Parameter | Value |
|---|---|
| Parallel misalignment | 0.10 mm |
| Angular misalignment | 1 deg |
| Axial displacement | 0 to +0.8 mm |
| 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 |
Dimensions (mm)
| Value | Dimension |
|---|---|
| 4-8 | d1/d2 bore range |
| 20 mm | D |
| 20 mm | DB |
| 30 mm | L |
| 10 mm | L1/L2 |
| 10 mm | E |
| 1 mm | S |
| 5 mm | B |
| 6.5 mm | G |
| 1-M2.5 | M |
| 1 N m | Tightening torque |
Standard bore diameters and rated transmission torque
| Bore (mm) | Rated transmission torque (N m) |
|---|---|
| 4 | 1.2 |
| 5 | 1.6 |
| 6 | 2.1 |
| 7 | 2.2 |
| 8 | 2.6 |
| 9 | 3.0 |
Engineering qualifications
- Negative-direction axial displacement is not allowed.
- Maximum rotation speed does not account for dynamic balance.
- Stiffness values are measured at 20 deg C.
- Inertia and mass are measured at maximum bore diameter.
- Numeric bore entries are standard supported bore diameters restricted in rated transmission torque by shaft-connection holding power.
- Bores between minimum and maximum shown in the dimensions table may be compatible; unlisted bore arrangements require manufacturer consultation.
- Recommended paired-shaft tolerance is h7, with documented special tolerance for bore 35 mm where applicable.
- B = clamp type hub; R = element hardness 97 JIS A tight-fit type.
Request an Engineering Quote
Share shaft bore, speed, torque duty and ordering designation for ALS-020-R. Golden Bearing Company is an authorised distributor for Miki Pulley couplings and shaft locking devices.