More technical terms:
* Torsional Damper: This is the most accurate technical term for a harmonic balancer.
* Vibration Damper: This emphasizes the function of reducing vibrations.
* Crankshaft Damper: This specifies the location of the device on the crankshaft.
Less technical terms:
* Crankshaft Pulley: This is a broader term that might include other pulleys attached to the crankshaft.
* Engine Damper: This is more general and might encompass other vibration dampers in the engine.
The best alternative depends on the specific situation and audience. If you're writing for a technical audience, "torsional damper" is the most precise. However, if you're writing for a more general audience, "vibration damper" or "engine damper" might be more understandable.