Product Description
229-06101 Needle Bar Bush Upper
This upper bush supports the top guide point of the needle bar, working alongside the lower bush to keep needle stroke stable and precisely aligned.
Fits
- Jack F4, F5, F6 and JUKI single needle lockstitch machines
Why Replace It
A worn upper bush adds play at the top guide point, which combined with a worn lower bush can significantly affect needle stroke accuracy.
FAQ
Should I replace upper and lower bush together?
If both show wear, yes — replacing only one leaves the needle bar supported unevenly between old and new components.
