Miki Pulley
Miki Pulley Couplings
Miki Pulley flexible couplings and shaft locking devices — Servoflex, Starflex, Stepflex, Sprflex and Posi-Lok. Authorised distributor engineering selection and quotation support.
Miki Pulley couplings overview
Miki Pulley (Japan) manufactures precision flexible couplings and shaft-connection devices for servo motors, stepper drives and industrial machinery.
Golden Bearing Company is an authorised Miki Pulley distributor in India. This hub covers Servoflex, Starflex, Stepflex, Sprflex coupling families and ETP/Posi-Lok shaft locking products.
Coupling and shaft-locking families
Jaw couplings
Starflex ALS-R
Starflex jaw couplings use polyurethane spider elements. ALS-R models (ALS-014-R through ALS-080-R) are published with verified performance, dimension and bore/torque tables.
Elastomer couplings
Stepflex and Sprflex
Stepflex STF couplings use laminated HNBR rubber elements for stepper motor damping. Sprflex AL-series couplings use nitrile rubber buffers with aluminium alloy hubs for general flexible power transmission.
Shaft locking
ETP / POSI Locks
ETP bushings and POSI Locks are shaft-locking devices — not flexible couplings. PSL-G and PSL-K catalogues include shaft diameter and transmittable torque data from the Miki Pulley catalogue.
Selection guidance
Choosing a Miki Pulley series
- Define the drive type: servo positioning, stepper indexing, general flexible transmission or shaft locking (Posi-Lok).
- Compare stiffness requirements — Servoflex disc couplings for servo accuracy; Starflex jaw for replaceable elastomer duty; Stepflex for stepper damping.
- Confirm shaft bore, torque, speed and misalignment against Miki Pulley catalogue data for the target series.
- For published ALS-R or Posi-Lok models, use catalogue PDPs for verified tables before enquiry.
- Send complete Miki Pulley designation or application data for authorised distributor quotation review.
Applications
Typical engineering use
Miki Pulley couplings and shaft locking devices are used on servo motors, stepper drives, machine tools, semiconductor handling, packaging automation and precision machinery where backlash control, compact length or keyless shaft mounting matters.
Engineering quotation
Golden Bearing Company is an authorised Miki Pulley distributor. Share application data for series recommendation and quotation review.
Send Miki Pulley model designation, shaft bore, torque duty and speed for catalogue review.
Miki Pulley coupling series
Select a coupling family or shaft-locking product line for engineering selection and catalogue access.
Common questions
Servoflex SFC metal disc couplings are commonly specified for servo applications requiring low backlash and compact length. Confirm bore and torque against the Servoflex family page and published SFC-SA2 or SFC-DA2 catalogues.
SA2 is a single-flex disc configuration; DA2 is double-flex with greater misalignment accommodation. Compare both catalogues on the Servoflex family page before selecting a model size.
Interchangeability depends on bore, torque, stiffness and envelope. Send existing part numbers for cross-reference review — this is identification support, not an interchange guarantee.
They are Miki Pulley shaft-locking devices (PSL-G, PSL-K), not flexible couplings. See the ETP / Posi-Lok family page for catalogue data.
Share model designation, shaft bore, torque duty and speed through our engineering enquiry channel. Golden Bearing Company is an authorised Miki Pulley distributor.
Request an Engineering Quote
Share shaft bore, speed, torque duty and ordering designation. Golden Bearing Company is an authorised distributor for Miki Pulley couplings and shaft locking devices.