Crandall Office Furniture’s Herman Miller Aeron Classic Replacement Mechanism Cover is a quick and easy way to replace your broken or squeaky mechanism cover on your Aeron Classic chair. We’re also proud to say this mechanism cover was designed, tooled, and are produced right here in the USA 
Over the years of working on Aeron chairs, we found a few things about the original OEM cover:
- The clips and cover can crack or break over time with use, abuse, and removing / re-installing the mechanism cover.
- The mechanism cover moves when you recline and move in your chair, and is often times the primary area of squeaks and noise when using the Aeron chair.
Based on that knowledge, when designing this cover, we made a few tweaks to the original OEM design:
- Thicker walls for less movement and more durability.
- Shiplap edge to prevent rubbing & squeaking between pieces.
- Thicker clips to hold the clamshell together tighter.
- Thicker clip to hold the clamshell to the chair.
This mechanism cover fits All Aeron Classic Chairs (Sizes A, B, & C).
Installation Video:
Disclaimer: These are aftermarket parts, and we do not have any affiliation with Herman Miller, Inc.
Aeron Classic Mechanism Cover Pictures:
Andre Hall (verified owner) –
The Aeron Classic Replacement Mechanism Cover from Crandall was exactly what I needed after the original cover became brittle and broken. The installation video was also helpful in showing the simple steps to replace the cover. Thanks Crandall Office Furniture for the excellent service and help!
Joey –
I have tried countless ‘hacks’ to stop my chair from squeaking on the recline. I had to disengage and keep the OEM mechanism cover apart to alleviate some of the noise. But that still didn’t work. This replacement cover silenced my chair and I could not be happier