The Premium Replacement Bobbin Case 52237 (B18370120A0 / MF10E0125) is a universal bobbin case designed to fit most industrial flat-bed sewing machines. Manufactured in Japan by Koban, this high-quality replacement component delivers dependable performance and smooth thread control during high-speed sewing operations.

This version is supplied without the NBL spring, making it suitable for applications where the spring is installed separately or not required. Precision engineering ensures a secure fit, stable bobbin rotation, and consistent stitch formation across various industrial sewing machine models.

Ideal for maintenance, repair, or replacement, this premium bobbin case helps maintain reliable machine performance in garment manufacturing and industrial sewing environments.

Key Features:

• Premium replacement bobbin case
• Cross reference: 52237 / B18370120A0 / MF10E0125
• Manufactured in Japan by Koban
• Universal fit for many industrial flat-bed sewing machines
• Supplied without NBL spring
• Provides stable bobbin rotation and smooth thread delivery
• Suitable for industrial sewing maintenance and repair

✔ Free shipping on orders over $99
✔ Ships from our USA (Georgia) office when in stock
✔ Weekly restocking from Japan, China, Bangladesh, and Turkey warehouses
✔ 3–7 business days handling time
✔ Compatible with multiple industrial sewing machines
✔ Carefully inspected before shipment

💡 Add more items to your cart to qualify for free shipping ($99+)

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⚠️ Please confirm your machine model before ordering