How to deal with the noise problem caused by metal casters during use?

Causes and Solutions for Metal Caster Noise

Core Causes: Hard Contact Friction, Bearing Seizure, and Loose Structure.

 

I. Identifying the Source of Noise

Wheel Friction Noise (Squeaking/Clacking): The metal wheel hits the ground or rolls over an obstacle.

 

Bearing Seizure Noise (Squeaking/Clacking): The bearing is lacking oil, has sand ingress, or is worn.

 

Loose Structure Noise (Clanging/Shaking): Loose screws, cracked welds, or excessive wheel-axle play.

 

II. Targeted Solutions

Reducing Wheel Friction:

Core Solution: Wrap the wheel with 3-5mm wear-resistant PU or rubber (30-50% noise reduction).

Temporary/Assistant: Clean the floor of debris and burrs; lay steel plates or rubber mats; keep the floor dry.

 

Eliminating Bearing Seizure:

Cleaning and Lubrication: Disassemble and clean the bearing (using kerosene or alcohol), then lubricate with a sufficient amount of lithium-based grease. Sealed bearings can be penetrated with oil.

Replacement: If worn or rusted, replace with a new bearing of the same model with a dust cover.

 

Resolving looseness:

Tightening: Tighten the screws (with anti-loosening washers); repair cracked welds.

Adjusting clearance: If axle play exceeds 1mm, add a bushing or replace with a thicker axle.

 

III. Long-term Maintenance

Regular Lubrication: Grease the bearings monthly (more frequently in dusty and humid environments).

 

Wheel Repair: Grind away any dents or burrs on the wheel surface.

 

Optimization: For long-term use on smooth surfaces, replace with a "metal bracket + PU-coated wheel" (noise reduction over 60%).

 

Summary: The solution is "mitigating hard contact + optimizing lubrication + eliminating looseness." In the short term, clean, lubricate, and tighten; in the long term, rubber-coated wheels or replacing composite casters can eliminate friction noise and extend life.