Shaft couplings and fixed couplings – what is the difference?
Couplings play a crucial role in drive technology. They connect drive shafts and ensure reliable power transmission. Depending on the application, a distinction is made between shaft couplings and fixed couplings . Both variants have their advantages and areas of application.
Shaft couplings
Shaft couplings compensate for misalignments between two shafts and dampen shocks or vibrations. They are used when shafts are not perfectly aligned or when small movements and vibrations need to be absorbed.
- Compensation of radial, axial and angular misalignments
- Protection against wear through shock absorption
- Use in motors, gate drives, pumps and machines
Fixed couplings
Fixed couplings connect two shafts rigidly and without backlash . They are used wherever precise power transmission without compensation for misalignment is required.
- No mobility – rigid connection
- Highest precision in power transmission
- Ideal for precise industrial applications
Which clutch is the right one?
The choice between a shaft coupling and a fixed coupling depends largely on the application . While shaft couplings are particularly flexible and durable, fixed couplings offer maximum precision. Shaft couplings are often used in gate operators and industrial sectional doors because they reduce wear and increase service life.
Conclusion
Both shaft couplings and fixed couplings are indispensable components in drive technology. They ensure reliable, safe, and long-lasting power transmission. In our shop, you will find original spare parts for gate drives and industrial applications of proven quality.
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Comparison: Shaft coupling vs. fixed coupling
| Characteristic | Shaft coupling | Fixed coupling |
|---|---|---|
| Connection | Elastic, can compensate for movements and offset | Rigid, no mobility |
| Compensation of offset | Radial, axial and angular possible | Not possible – exact alignment required |
| Shock & vibration damping | Yes, protects against wear | No, direct power transmission |
| accuracy | High operational reliability, but slight tolerances | Maximum precision in power transmission |
| Areas of application | Gate drives, pumps, motors, mechanical engineering | Industrial precision applications, rigid systems |
| Advantages | Longer component life, less wear | Very precise power transmission, simple design |
