Premium Replacement Bobbin Case SC31 52237 for Brother DB2-B737 Sewing Machine
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The Premium Replacement Bobbin Case SC31 (Part #52237) is a high-quality component designed for Brother DB2-B737 industrial sewing machines. This bobbin case is engineered to provide stable thread tension and reliable performance for high-speed lockstitch sewing applications commonly used in garment manufacturing.
As an essential component of the sewing hook system, the bobbin case controls the lower thread tension, ensuring smooth thread delivery and consistent stitch formation. If stitches begin looping, skipping, or bunching, replacing a worn bobbin case is often the fastest solution.
This premium replacement bobbin case is manufactured with precision-machined steel, providing durability and reliable performance even under demanding industrial sewing conditions.
Key Features
Universal Compatibility
Designed as a direct replacement for Brother DB2-B737 series industrial lockstitch machines.
Precision Tension Adjustment
Equipped with a leaf spring and adjustable tension screw allowing accurate bottom thread tension control.
Durable Steel Construction
Manufactured from hardened steel to withstand high-speed industrial sewing operations.
Smooth Thread Flow
Polished surfaces reduce friction and prevent thread snagging for consistent stitching quality.
Product Specifications
| Feature | Details |
|---|---|
| Model | SC31 |
| Part Number | 52237 |
| Compatible Machines | Brother DB2-B737 Series |
| Material | Hardened Steel |
| Finish | High-Polish Chrome / Steel |
| Application | Single-Needle Lockstitch Machines |
Maintenance Tip
Lint and oil residue may accumulate inside the bobbin case over time and affect thread tension. Replacing a worn or clogged bobbin case is often the quickest way to restore clean, consistent stitches in industrial sewing operations.
✔ 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
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