Office Chair Base Swivel Seat

The office chair base swivel seat typically refers to the core component that connects the five-star base (the star-shaped bracket supporting the casters) to the gas lift rod, enabling rotation functionality. However, the specific structure may vary depending on the product model, and replacement should be carried out with caution.

The office chair base swivel seat is a crucial component that links the five-star base to the pneumatic height adjustment system. Its primary function is to facilitate 360-degree rotation of the seat through built-in bearings or elastic supports, while also coordinating with the gas lift rod for height adjustment. Due to design differences in office swivel chairs, the specific structure of the swivel seat may vary: some products adopt an integrated design, combining the rotation mechanism with the gas lift rod base; others achieve rotation functionality through detachable turntables or bearing assemblies. Currently, there is no standardized name for the "base swivel seat" in publicly available information, and it may correspond to components such as the gas lift rod base, swivel bearing, or turntable.

If replacement or repair of the base swivel seat is required, follow these steps:

1. Confirm the component name: Use the product manual or contact the manufacturer to identify the specific component corresponding to the "base swivel seat" (e.g., gas lift rod base, swivel bearing) to avoid misdisassembling other components.
2. Prepare tools: Typically, you will need an Allen wrench, screwdriver, and other tools. Some products may require a special wrench to remove the fixing screws of the gas lift rod.
3. Remove the old component:
   • Invert the office chair so that the five-star base faces upward;
   • Loosen the screws securing the gas lift rod to the five-star base (some products may require removing the casters first);
   • Slowly pull out the gas lift rod (note that there may be high-pressure gas inside; release the pressure according to the manual);
   • Separate the swivel seat from the gas lift rod or five-star base.
4. Install the new component:
   • Align the new swivel seat with the mounting holes of the gas lift rod or five-star base;
   • Tighten the fixing screws in a diagonal sequence to ensure even force distribution;
   • Reassemble the casters and test whether the rotation and height adjustment functions work properly.

Precautions:

• Before operation, release the internal pressure of the gas lift rod (some products may require pressing the air valve for a few seconds) to avoid injury from high-pressure gas ejection;
• If the swivel seat and gas lift rod are of an integrated design, it is recommended to contact a professional repair technician for replacement to avoid damaging the sealing structure of the gas lift rod;
• When purchasing replacement components, ensure that the model matches. Poor-quality accessories may lead to reduced seat stability or rotation stuttering.