Office Chair Caster Specifications
Office chair casters come in a variety of specifications, commonly including differences in size, type, and installation method.
In terms of size specifications, there are multiple options for office chair casters. Common sizes include 1.4-inch, 1.5-inch, 2-inch, 2.5-inch, and 3-inch universal casters. Here, 'inch' refers to the imperial unit. When converted to the metric system, 1 inch is approximately equal to 25.4 millimeters, so these sizes roughly correspond to 35.56 millimeters, 38.1 millimeters, 50.8 millimeters, 63.5 millimeters, and 76.2 millimeters, respectively. Additionally, the diameter of regular office chair casters ranges from 50mm to 60mm, which aligns with some of the converted sizes mentioned above. This indicates that casters with a diameter of 50mm - 60mm are more commonly used in office chair size selection, meeting the flexibility and stability requirements for chair movement in most office scenarios.
Regarding type specifications, they are mainly divided into threaded-rod casters and universal casters. For example, a 2-inch double-wheel threaded-rod caster with an M10 insert rod and snap ring specification connects to the chair base via a threaded rod, offering a relatively stable structure. It is suitable for office environments where high chair stability is required and frequent changes in the direction of movement are not necessary. Universal casters, on the other hand, have the characteristic of 360-degree rotation, allowing office chairs to move freely in all directions. This greatly enhances usability, making them highly applicable in both cramped office spaces and scenarios that require frequent turning and communication.
In terms of installation method specifications, different caster specifications correspond to different installation methods. Threaded-rod casters are inserted into the corresponding holes in the chair base using the threaded rod and then secured with snap rings, etc. Some universal casters may use an insert-rod installation method, where the insert rod is simply inserted into the pre-reserved holes in the base to complete the installation, which is relatively straightforward. Different installation methods also affect the replacement and maintenance of casters. A simple installation method enables quicker and more convenient replacement when a caster is damaged.
