Swivel Chair Replacement Parts
Why Unthreaded?
Although more expensive, unthreaded posts (spindles) greatly eliminate Hub Liner wear. This is even more true when a chair is adjusted to be near it's maximum height range leaving little support in the center hub and liner.
Several inches of the post must remain in the center hub in order to give proper support when in use. Due to the leverage factor when leaning, the pressure of the steel threaded post threads can cut into the softer plastic hub liner. This creates a looseness and therefore the chair "rocks" annoyingly from side to side.
An unthreaded post end (3") cannot rub cut and enlarge the hub liner because it is machined smooth where it comes in contact with the hub liner.
Regretably, a choice of posts is not available when ordering new mechanism's. However, "smooth" posts may be ordered as an optional item. Original installation posts were not intended to be removed and unless worn loose, can be difficult to do so. Before ordering any post, first make certain the old post can be removed.
View mechanism Posts