Bearing-Type Office Chair

The bearing model of bearing-type office chairs is usually not explicitly indicated in publicly available information and needs to be confirmed through the product manual or supplier; industrial bearing models (such as SKF NA4901) are generally not directly used in office chair design.

The Relevance of Bearings to Office Chairs

The bearing components of office chairs are mainly used in areas such as casters, height-adjustment mechanisms, or swivel bases. Their core functions are to support movement, adjust height, or enable 360-degree rotation. For example, common office chairs like the Deli 4901 may use standardized bearing components, but specific models (such as the specifications of ball bearings or needle bearings) are usually not detailed in product promotions. This type of information is mostly included in technical manuals or internal design documents and is difficult for ordinary consumers to obtain directly.

Differences Between Industrial Bearings and Office Chair Bearings

Models such as SKF NA4901 and FAG NA4901 are needle bearings commonly used in industrial machinery (such as machine tools and transmission systems) to withstand high radial loads. Their design features include high precision, wear resistance, and long service life, but their size and load-bearing capacity far exceed the requirements of office chairs. The bearing components of office chairs usually adopt lightweight and low-noise designs to match the frequent movement and short-term load-bearing needs of daily office scenarios. Therefore, industrial bearing models have no direct relevance to office chairs.

How to Confirm the Bearing Specifications of an Office Chair

If you need to know the specific bearing model of an office chair, you can obtain accurate information through the following channels:

1. Consult the product manual: The technical parameters section may indicate the bearing type (such as "6200ZZ deep groove ball bearing") or load-bearing range.
2. Contact the supplier or manufacturer: Directly inquire with the customer service or technical support team and provide the product model (such as Deli 4901) to obtain detailed component information.
3. Disassemble and observe (proceed with caution): Some office chairs have removable casters or height-adjustment mechanisms. You can initially determine the model by observing the appearance of the bearing (such as the inner diameter, outer diameter, and width), but be careful to avoid damaging the product.

Summary

The bearing models of bearing-type office chairs are usually not publicly indicated and have no direct correspondence with industrial bearing models. If consumers need technical details, they should refer to product documents or contact the supplier first to avoid compatibility issues caused by the misuse of industrial bearing models.