Eccentric weight is a rotating mass component in vibration motors that creates controlled imbalance to generate mechanical vibrations.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Mass | 0.1-50 kg | |
| Max RPM | 3000-10000 | |
| Mounting | Keyway, taper lock, or threaded shaft | |
| Eccentricity | 5-150 mm | |
| Balance Grade | G6.3 per ISO 1940 | |
| Centrifugal Force | 100-50000 N |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
A motorized device that generates controlled mechanical vibrations for material separation and screening applications.
A rotating component with an off-center mass that generates centrifugal force to produce vibration.
An electric motor that generates controlled vibrations for cleaning applications.
A practical evidence checklist for RFQ preparation and supplier evaluation.
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Manufacturer profiles associated with Eccentric Weight.
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Vibration amplitude is directly proportional to eccentric weight mass and eccentricity distance. Increasing either parameter increases centrifugal force and resulting vibration amplitude, following F = m × ω² × r where m is mass, ω is angular velocity, and r is eccentricity.
Regular inspection for cracks, wear on mounting surfaces, and corrosion. Periodic re-balancing may be needed after extended operation. Lubrication of mounting interfaces according to manufacturer specifications.
Fixed eccentric weights produce vibration frequency equal to rotational speed. Some designs allow mass adjustment or multiple weights for force variation, but frequency changes require variable speed motor control.
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