Office Chair Accessories Specifications
The specifications of office chair accessories vary depending on the type of accessory. Here is the specification information for common accessories:

Swivel Chair Tray: The size options for swivel chair trays are quite diverse. Common specifications include 8ร8 cm round trays, 10ร10 cm round trays, and rectangular sizes such as 14.3ร17.5 cm (with thickness options of 2 mm, 2.5 mm, 2.6 mm, or 3 mm), 15ร22 cm, 15ร25.6 cm, etc. In terms of material, trays are usually made of metal (such as steel), processed through stamping and welding techniques, and have a surface treated with plastic spraying to enhance rust resistance. The diameter of the circular hole in the center of the tray for connecting the gas lift is mostly 2.8 cm, which is an industry-standard specification suitable for most gas lifts.
Hex Socket Screws: The specifications of hex socket screws used in office chairs need to be determined based on the chair's design and load-bearing requirements, and currently, no specific size data is provided. These screws are typically used to secure components such as the chair back, armrests, or base, and their length, diameter, and thread specifications need to match the installation holes. For example, parts with higher load-bearing capacity may use screws with a diameter greater than 6 mm, while lightweight designs may use 4 mm screws. When selecting, refer to the chair's instruction manual or parts list.
Chair Back Cushion (Taking Fellowes CRC83399 as an example): This cushion weighs 500 grams and features an integrated steel frame structure with a triple support system (lumbar, back, and shoulder zone support). The surface has a mesh design for excellent breathability; the lumbar and shoulder areas are embedded with raised memory foam to conform to the body's curves and provide pressure dispersion. The cushion is secured with elastic straps or buckles and fits most office chair backs or car seats, requiring no tools for installation.
Other Accessories:
- Five-Star Base: Commonly made of nylon or plastic, the specifications should focus on size (such as a diameter of 60 cm) and load-bearing capacity (such as a static load capacity of โฅ100 kg). Some high-end models use aluminum alloy to enhance durability.
- Wheels: The diameter is usually 5 cm or 6 cm, with materials including hard plastic (suitable for carpets) and soft rubber (suitable for hard floors). Silent wheels reduce sliding noise through special coatings or structural designs, making them suitable for places requiring a quiet environment.
When selecting accessories, pay attention to compatibility. For example, the tray size should match the chair seat, and the diameter of the gas lift should be consistent with the tray's hole. If you need to replace accessories, it is recommended to prioritize original specifications or consult professional maintenance personnel.



