Office Chair Squeak

The squeaking of an office chair may be caused by reasons such as loose screws, wear and rust of the gas lift rod/height adjustment rod, cracking or loosening of the five-star base, lack of oil in the rocking base/reclining shaft, foreign objects stuck in the casters or damaged bearings, fracture of the seat/backrest frame, and friction at the connection between the handle and the seat. Solutions include tightening screws, applying lubricating oil, cleaning the casters, reinforcing/replacing components, and isolating friction.

Common Causes and Corresponding Solutions

1. Loose screws: The screws at the connections of the chair back, seat, armrests, and base can loosen over time due to long-term stress, causing friction and collision and producing a "squeaking" sound. Solution: Turn the chair over and use a cross or hex key to tighten all visible screws one by one, focusing on the above-mentioned connection areas.
2. Wear or rust of the gas lift rod/height adjustment rod: Long-term weight-bearing and dust accumulation can cause the gas lift rod to become dry and friction-prone, making a "click, squeak" sound during height adjustment. It may also make a sound when you sit on it and move slightly, with the sound coming from the middle. Solution: Apply lubricating oil to the gas lift rod. You can use WD-40, sewing machine oil, grease, etc. For frequently moving joints, use synthetic hydrocarbon-based grease, and for high-pressure parts, choose extreme pressure grease containing molybdenum disulfide. After spraying, move it back and forth a few times. If the abnormal noise is severe, replace the gas lift rod directly.
3. Cracking or loosening of the five-star base (five-claw base): Plastic/nylon feet are prone to aging and micro-cracking, and metal feet may have fatigued welds. When bearing weight, slight deformation can cause a cracking sound, which is obvious when sitting down and getting up. In severe cases, the footrest may deform, posing a safety hazard. Solution: Apply lubricating oil to the joints of the five-star base. If it is cracked, it must be replaced.
4. Lack of oil in the rocking base/reclining shaft: Lack of lubrication in the springs and shafts can cause dry friction, resulting in continuous squeaking during reclining and rebounding. The location is at the large metal plate directly below the seat. Solution: Apply lubricating oil to the reclining shaft. You can use the above-mentioned suitable oils. After spraying, move it back and forth a few times.
5. Foreign objects stuck in the casters or damaged bearings: Hair, thread scraps, or worn internal bearings in the casters can cause a "rustling/squeaking" sound when pushing the chair, and the chair may also make a sound when rotating in place. Solution: Pull off the casters, cut off the hair and thread scraps, apply a little oil if the bearings are dry, and replace the casters if they are damaged.
6. Fracture of the seat/backrest wooden board/frame: The internal frames of mesh chairs and fabric chairs can age and crack, producing a wood/plastic cracking sound when stressed and squeezed, which is relatively dangerous. Solution: Replace the chair directly.
7. Friction at the connection between the handle and the seat: Friction between the handle and the seat connection can produce a sound, and the sounds on both sides may be different. Solution: Find something to stuff or pad this position to isolate the friction.