Large Wheel Bobbin Winder S14420-110 75mm Diameter drive wheel. Please ensure that you replace Bobbin Winder like for like. The small bobbin winder wheel is 60mm in diameter. The large bobbin winder wheel is 75mm in diameter. If you have a belt guard on your machine these bobbin winders are not interchangeable. A smaller diameter drive wheel will fit under the Brother Juki Siruba / Later design type belt guards. Usually used on standard flat / Lockstitch sewing machines
