Technical Guide
Coupling Selection Guide
Practical information for choosing, quoting and replacing industrial shaft couplings.
How to choose
Start with the data that affects service life.
Torque and Speed
Check rated torque, peak torque, motor power, reducer ratio and RPM before selecting a coupling family.
Bore and Keyway
Confirm shaft diameter, bore tolerance, keyway size, set screw position and available mounting length.
Misalignment
Parallel, angular and axial movement determine whether a flexible, disc, jaw or gear coupling is better.
Backlash
Precision drives usually require low-backlash disc or servo couplings.
Environment
Temperature, dust, moisture and corrosion influence material and surface treatment choices.
Maintenance
Consider lubrication, elastomer replacement, inspection access and spare part availability.
RFQ checklist
Send these details for an accurate quote.
- Coupling type or machine application
- Torque, motor power, speed and duty cycle
- Shaft diameter, bore, keyway and tolerance
- Quantity, material preference and delivery destination
- Drawings, photos or old model numbers if available