Loud Noise from Office Chair

The loud noise from an office chair mainly stems from component friction and structural looseness, which can be resolved through targeted troubleshooting and repairs. Here are common causes and solutions:

1. Loose connecting screws
   Screws in areas such as the backrest, armrests, base, and chair legs can loosen over time due to constant stress, leading to friction and noise between components. Solution: Flip the chair over and use the appropriate screwdriver or wrench to check and tighten all visible connectors, paying special attention to frequently moving parts (such as the connection between the chair legs and the gas lift).

2. Lack of lubrication in the base swivel
   Chairs with a rocking and reclining function may produce friction sounds when the lubricating oil in the internal metal springs and swivel joints dries out. Solution: Use WD-40 high-efficiency white lithium grease, white lithium-based grease, or a dedicated silicone-based lubricant, applying it evenly to metal connections and rotating shafts while avoiding excessive dripping that could contaminate other parts.

3. Wear at the connection between the gas lift and the five-star base
   The contact points between the top of the gas lift and the base, and the bottom of the gas lift and the five-star base, can wear down over time due to constant weight bearing, creating gaps that result in noticeable friction noise when the body moves. Solution: If the wear is minor, try applying grease to the contact surfaces to reduce friction; if the wear is severe, contact the manufacturer or a professional repair technician to replace the gas lift or five-star base assembly.

4. Aging and deformation of plastic frame components
   Low-cost chairs often use thin plastic frames that can deform under prolonged sitting pressure, leading to structural squeezing or gap friction. Solution: Such issues are generally difficult to fully repair, and it is recommended to replace the chair with one of better quality that features a thicker metal or engineered plastic frame.

5. Dry or stuck wheel bearings
   When moving the chair, dry or dust-clogged bearings inside the wheels can cause rough rolling and friction. Solution: Clean dust and debris from the wheel surfaces and apply an appropriate amount of lubricating oil to the bearings; if the wheels are severely worn or cracked, replace them with new ones (be sure to choose a model that matches the original wheel size).

6. Seat material issues
   Leather seats can produce noise due to friction between dried and hardened leather pieces; fabric seats may make noise due to friction between the fabric and the frame or displacement of internal filling materials. Solution: Leather seats require regular care with leather conditioner; for fabric seats, check the fabric's attachment and add soft padding (such as foam strips) at the contact points between the frame and the fabric.

7. Gas lift malfunction
   A gas lift with internal gas leakage or poor sealing can produce noise when adjusting the height or under varying stress. Solution: Do not attempt to disassemble it yourself; stop using it immediately and contact the manufacturer or a professional repair technician for inspection and replacement to avoid safety risks from sudden gas lift failure.

Daily prevention tips: Regularly check and tighten loose screws, and apply lubricating oil to metal swivels and connection gaps; when purchasing, prioritize chairs with a thick metal base, a sturdy overall frame, and heavy-duty materials to significantly reduce the occurrence of noise.