110-05204 Needle Bar Crank for Jack F4/F5/F6 Machine

110-05204 Needle Bar Crank

This needle bar crank converts the main shaft’s rotary motion into the precise up-down stroke that drives the needle bar.

Fits

• Jack F4, F5, F6 and JUKI single needle lockstitch machines

Why Replace It

A worn needle bar crank introduces play into needle stroke, affecting needle-to-hook timing and increasing the risk of needle breakage.

अक्सर पूछे जाने वाले प्रश्न

Is needle breakage always a needle problem?
Not always — repeated breakage despite using quality needles often points to a worn crank or bent needle bar disrupting the stroke path.