Product Catalog
Couplings and Connection Equipment
A coupling tolerates misalignment — it doesn't eliminate it.
Coupling types and selection logic
| Type | Misalignment tolerated | Character |
|---|---|---|
| Elastic (rubber insert) | Angular and parallel, limited | Damps vibration and shock |
| Gear coupling | Angular, high torque | Heavy duty, needs lubrication |
| Disc coupling | Angular and axial | Maintenance-free, high precision |
| Rigid coupling | None — must be aligned | Highest torque transmission |
Frequently asked questions
What matters when selecting a coupling?
Four values: torque to transmit, RPM, shaft diameters, and expected misalignment. Add operating environment (temperature, oil, chemical) and selection is clear.
My coupling insert wears out too often — why?
Almost always misalignment. A coupling tolerates some misalignment, but at the cost of its insert. Check alignment before replacing the insert, or you'll be back at the same point.
Elastic vs. rigid coupling — what's the difference?
Elastic tolerates misalignment and damps vibration — ideal for general use. Rigid accepts zero misalignment but transmits the highest torque and precision, only in fully aligned systems.
Can custom coupling inserts be manufactured?
Yes — inserts not available on the market can be manufactured through our rubber and polyurethane workshop, a common solution for older machines.