Product Description
10111120 Winding Pad for Jack F4
This winding pad sits under the bobbin winder assembly, cushioning and guiding the winding process so bobbins wind evenly without slipping.
Fits
- Jack F4 industrial single needle sewing machine
Why Replace It
A worn or hardened winding pad causes uneven bobbin winding, which shows up later as inconsistent bottom-thread tension during stitching. Replacing it is a simple fix that prevents that downstream problem.
FAQ
How does a winding pad affect stitch quality?
An uneven bobbin wind (caused by a worn pad) feeds thread inconsistently from underneath, which shows up as loose or tight bottom stitches even when top tension is set correctly.
