Office Chair Wear and Looseness

For office chairs with wear and looseness, corresponding maintenance measures can be taken according to different causes, as follows:

Loose connecting screws
The screws at the connection points of the office chair's backrest, armrests, base, and chair legs are prone to loosening due to long-term sitting pressure or frequent backward rocking. This can lead to gaps between components, causing a creaking noise when pressure is applied and the components rub against each other. In this case, use a screwdriver to check and tighten all loose screws one by one. If any screws are damaged (such as stripped or broken), replace them with new screws that match the original specifications to ensure a secure connection.

Lack of lubrication in the base spindle
For chairs with a rocking and reclining function, the internal metal springs and spindles may dry out after long-term use, causing direct friction and extrusion between metal components and resulting in abnormal noises. During maintenance, apply white lithium grease (recommended viscosity grade NLGI 2) to the base turntable track to reduce friction. If adjusting the armrest height is required, disassemble the armrest buckles and apply a small amount of lubricating grease to the internal gear racks. For the plastic gear set of the synchronous backrest, use food-grade lubricating grease to avoid corroding the plastic components.

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 between the bottom of the gas lift and the five-star base, are prone to wear due to long-term weight-bearing, creating gaps and causing friction noises when the body moves. If the gas lift has lifting malfunctions (such as inability to lift or stuttering), it should be immediately taken out of service. Such issues involve high-pressure components and should be handled by professional maintenance personnel to avoid safety hazards caused by self-disassembly.

Aging and deformation of plastic frame components
Low-priced office chairs often use thin plastic frames, which are prone to deformation after long-term pressure, leading to structural extrusion, gap friction, and continuous abnormal noises. Such issues are usually irreversible due to plastic aging and are often difficult to completely repair. It is recommended to replace the chair with a higher-quality one or contact the manufacturer to assess whether the frame components can be replaced.

Dry and stuck wheel bearings
When the chair is moved, a lack of oil in the wheel bearings can cause dry rolling and friction noises. It is recommended to use a cotton swab to apply lubricating grease to the wheel axles annually (remove any tangled hair before application) to restore smooth rolling. If the chair wheels are severely worn (such as surface cracks or poor rolling), purchase replacement wheels that match the original specifications to ensure stable movement.