This essential component transfers power from the machine’s motor to its handwheel, enabling the needle’s up-and-down motion. It’s typically a rubber loop, though other materials like polyurethane or leather can be used. Different machines require specific sizes and types, often indicated in the owner’s manual. A properly functioning one is crucial for consistent stitching speed and power.
Efficient power transmission ensures smooth operation and prevents skipped stitches or fabric jams. Historically, before electric motors, treadle-powered machines used leather belts for this purpose. The development of smaller, more powerful electric motors necessitated more durable and precise power transfer solutions, leading to the modern rubber or synthetic variations. Proper tension and condition are vital for optimal performance and longevity of the machine itself.
