Solid Steel Bobbin 55623 Bobbin Cases & Bobbins For All Makes of Industrial Sewing Machines Thank You for your interest in our Rotary Hooks, Bobbin Cases and Bobbin products. Part Number 55623 (Steel). Mainly used on standard Zig Zag singer 20U class of machine The Singer 55623 is the industry standard steel Bobbin for most plain sewer sewing machine and is the Bobbin you use day in day out on your machine. Trojan Sewing Machines Supply Equivalent Zig Zag Machines. Model’s Trojan JZ20U53. All with modern designs and the latest technology. All competitively priced.
