Why choose the Rexton® FCL?
- Torsional damping – Elastomer bushes dampen torsional peaks for smoother operation.
- Misalignment tolerance – Accommodates angular, parallel, and axial movements within recommended limits.
- Fail-safe design – Power remains transmitted even if bushes wear or deform.
- Low maintenance – Minimal wear parts and fast bush replacement, reducing downtime.
- Rugged construction – Cast steel body provides excellent durability and high shock resistance.
Typical Applications
Rexton® Flexible Couplings are ideal for high-speed, medium-to-light duty drives:
- Pumps (process water, oils, chemicals)
- Turbines, compressors, fans, blowers, and general machinery
- Equipment requiring vibration damping and smooth power transfer
- Industries: HVAC, water treatment, manufacturing, and processing plants
Selection Guide (Quick Steps)
- Select a coupling size
Use motor power (kW) & shaft size to select the appropriate coupling size. - Apply a suitable service factor
Based on duty (start/stop frequency, shock load, hours/day). For more frequent start stops, select the next size up coupling. - Check torque and speed capacity
Ensure the rated torque ≥ design torque and verify max rpm suitability. - Check bore capacity
Confirm the required shaft diameters fit the selected size (and keyway if needed). - Verify misalignment
Ensure combined angular/parallel/axial misalignment stays within recommended limits. - Confirm environment
For high temperature, chemical exposure, or wet service, ask us about alternate bush materials.
Not sure which model suits your setup? Share your motor data and operating details — we’ll size it for you.
Installation & Maintenance Tips
- Align shafts within recommended tolerances before tightening bolts.
- Tighten bolts to specified torque and re-check after initial run-in.
- Inspect bushes and bolts periodically; replace if cracked, hardened, or excessively worn.
- Re-check alignment after any major maintenance.
Note: Exact dimensions, rated torques, and bore ranges vary by size. See the datasheet or contact us for a confirmed selection.
FAQ
What misalignment can an FCL handle?
FCL couplings are designed for minor angular, parallel, and axial misalignment. Exact limits depend on size and bush stiffness—ask us for the recommended tolerances for your selected model.
How often should bushes be replaced?
Intervals depend on load, temperature, and alignment. Include bush inspection in your regular maintenance; replace on signs of cracking, hardening, swelling, or excessive wear.
Is the FCL suitable for frequent starts?
Yes. Its elastomer element helps cushion start-up shock. Use an appropriate service factor during selection.
Can different bush hardnesses be mixed?
No. Always use identical bushes from the same kit for balanced performance.
