Office Chair Is Always Loose

The office chair is always loose. Here are the common causes and corresponding solutions:

Loose connecting screws: The screws at the connection points of the backrest, armrests, base, and chair legs may gradually loosen due to long-term sitting pressure and frequent backward rocking. This creates gaps between the components, causing friction, noise, and looseness when pressure is applied. The solution is to tighten all loose screws, and you can also add a washer to prevent the screws from loosening again.

Lack of lubrication in the base swivel: In chairs with a rocking and reclining function, the lubricating oil in the internal metal springs and swivel positions dries up over time, causing metal-to-metal friction and pressure. This results in noise and looseness when moving. You can apply a small amount of lubricating oil to the metal swivels and connection gaps to reduce friction and eliminate noise and looseness.

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, can develop gaps due to long-term weight-bearing wear. This causes friction, noise, and looseness when the body moves. If the wear is not severe, you can try applying lubricating oil to the contact points to alleviate the issue; if the wear is severe, you need to replace the gas lift or the five-star base.

Aging and deformation of plastic frame components: Low-priced chairs often have thin plastic frames. After long-term sitting and pressure, they may slightly deform, causing structural compression and continuous noise and looseness due to gap friction. This is generally difficult to completely repair, and it is recommended to replace the chair with a better-quality one.

Dry and stuck wheel bearings: When the chair moves, if the bearings inside the wheels lack oil, the rolling will be dry and cause friction, resulting in noise and looseness. You can apply lubricating oil to the wheel bearings to reduce friction and eliminate noise and looseness.

Connection issues with other components: Loose connecting screws on the five-claw base or wear on the bottom plastic sleeves can cause overall wobbling; looseness at the connection between the seat and the gas lift can create a sense of wobbling; loose screws or aging plastic components at the connection between the armrests and the backrest can make the armrests wobble significantly; improper tightening of the connecting rod between the backrest and the seat or damage to the elastic components can also cause the backrest to wobble. For different situations, tighten the screws, replace worn components, or adjust the tightness accordingly.

To reduce looseness at the root in daily use, when purchasing, prioritize chairs with a thickened metal base, a sturdy overall frame, and heavy-duty materials. At the same time, it is recommended to conduct a comprehensive inspection of the chair at least once a month, including checking the tightness of the screws, the condition of the gas lift, and the wear of the base leg protective sleeves.