Shuttle shell sleeve bobbin case for industrial sewing machines. A durable, reusable accessory designed to or upgrade the bobbin case in compatible machines. Lightweight and easy to carry, it supports reliable thread control and helps maintain consistent stitch quality during regular use and work. Key benefits Durable construction: made from robust materials to withstand repeated use in industrial and home sewing environments. Reusable replacement part: designed for long service life and straightforward installation, reducing downtime for maintenance. Improves thread handling: stable bobbin seating and smooth rotation help prevent thread jams and uneven stitches. Portable and light: easy to keep as a spare part in toolkits or carry to job sites. Features Function: shuttle shell sleeve type bobbin case for standard sewing machine hook systems. Compatibility: compatible with the following machine models: 900d, bc1000, ce2000, ce4000, ce5000prw, ce5500, ce5500prw, 6500, 7500, cs4000, cs100, cs100t, cs4000, cs6000, cs6000b, cs6000i, cs6000t, ds120, ds140, es2000, 660, fs20, fs40, fs40wt, he240, hs1000, hs2500, lb6770 prw, se350, se400, 4040, 6600, 7700 and 9000. Size and weight: compact and lightweight for easy handling and storage. Performance: supports stable bobbin rotation and consistent thread tension for standard sewing operations. Practical applications Routine maintenance: keep a spare bobbin case on hand for quick replacement during machine servicing to minimize production interruptions. Heavy fabric sewing: use as a reliable replacement part when working with denim, canvas, or layered materials that increase wear on bobbin components. Sewing or home workshop: suitable for technicians and hobbyists who need a portable, reusable bobbin case for multiple compatible machine models. Installation and care Designed for straightforward insertion into compatible hook assemblies. Follow your machine manual for correct installation and tension adjustment. Clean periodically and inspect for wear to ensure continued smooth operation. What this part solves Replaces worn or damaged bobbin cases to restore consistent stitch formation. Reduces machine downtime by providing an easytoinstall, reusable replacement. Offers a lightweight spare option for technicians and sewing operators who require quick swaps in production or environments. This shuttle shell sleeve bobbin case is a practical replacement accessory for a wide range of compatible sewing machine models, combining durability, reuse, and portability for routine maintenance and .