2005Arms forum
Replacement bearings for Flyer arm joints and bearing failure troubleshooting
21 years old. Gear and prices may have changed since.
What the thread found
- The lower section joints of a Flyer arm use bearings with an outer diameter of 12.68mm, a shoulder at 13.87mm, and a length of 5.51mm that sit on a 6.33mm diameter shaft measuring 65.5mm long.
- Bearing failure in the lower arm section can result from improper installation that displaces the bearing cover, allowing ball bearings to fall out and causing damage.
- Bronze bushings can be substituted for bearings in the lower arm section as a more durable alternative with similar damping characteristics, though they are more difficult to install.
- Some original Flyer arms featured double bearings at certain joints while later versions used single bearings.
- A bearing supplier with expertise in arm and rig parts can be contacted for replacement components and installation advice.
Depends on
- The measurements provided are specific to one individual's arm and may not apply universally if bearing sizes vary across production batches.
- The suggested bronze bushing modification has been mentioned as a theoretical solution but was not confirmed as successfully implemented during this discussion.
- Installation problems may account for some bearing failures, making it unclear whether the bearings themselves or the installation process are at fault.
- The thread does not establish whether bearing failure is a widespread issue or limited to specific circumstances.