R7-46 Roller Steel Ball for High-Speed Zipper Sewing Machine
The R7-46 Roller Steel Ball is an original imported spare part designed for high-speed Xingrui zipper sewing machines. It provides smooth rotation and support for the roller mechanism, reducing friction and ensuring precise feeding of the zipper tape during sewing. Made from high-strength, wear-resistant steel, this component offers long service life, stable performance, and reliable operation, making it essential for maintaining consistent stitch quality in industrial zipper production.