Heritage Stitch Systems Industrial Collection
Superior Industrial Sewing Machine Bobbin Case for Singer Lockstitch Machines – Precision Rotary Hook Bobbin Holder Replacement Parts
Superior Industrial Sewing Machine Bobbin Case for Singer Lockstitch Machines – Precision Rotary Hook Bobbin Holder Replacement Parts
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BOBBIN CASE
Product Specifications
| Specification | Details |
| Product Name | Industrial Bobbin Case |
| Brand |
Superior |
| Part / Model Number |
52237 (Compatible with BC-DB1 style) |
| Compatible Machine Mfg |
SINGER (Standard Single-Needle Lockstitch Machines) |
| Category |
Bobbin Cases |
| Material | Hardened Precision-Ground Steel |
| Country of Origin |
China |
| Weight (Lbs) |
0.0225 lbs |
| Weight (Kg) |
0.0102 kg |
| Tension Mechanism | External leaf spring with micro-adjustment screw |
| Latch Type | Hinged quick-release pull latch |
Product Description:
Ensure flawless stitch formation, eliminate thread snarls, and maintain consistent lower thread tension with the Superior Industrial Bobbin Case for Singer Sewing Machines. Engineered specifically for commercial garment production, tailor shops, and apparel manufacturing plants, this replacement bobbin case provides reliable performance in high-speed single-needle lockstitch machines.
Manufactured from durable, precision-machined alloy steel, this case features a finely tuned tension leaf spring with an easily accessible micro-adjustment screw, allowing operators to achieve exact bobbin thread balance across fine silks, synthetic knits, medium wovens, and heavy workwear fabrics. The smooth, burr-free thread exit slot ensures snag-free feeding, while the spring-loaded hinged latch guarantees fast, secure bobbin insertion and extraction to minimize machine downtime during busy shifts.
Key Features:
- Engineered for Singer Industrial Machines: Direct-fit replacement for standard Singer single-needle lockstitch machines and compatible commercial rotary hook systems.
- Micro-Adjustable Thread Tension: High-flexibility external leaf spring with precision adjustment screw delivers accurate, reproducible lower thread tension.
- Hardened Steel Durability: Wear-resistant steel construction withstands continuous friction, high operating speeds, and daily workshop use without deforming.
- Snag-Free Mirror Polish: Polished delivery groove and inner chamber eliminate thread catching, splitting, and skipped stitches.
- Ergonomic Quick-Release Latch: Spring-loaded hinged finger latch ensures positive locking into the hook assembly and hassle-free one-handed removal.
Shipping Policy
We offer insured delivery on all equipment. Most orders process within 3–5 business days, with estimated delivery timeframes varying based on product availability, freight scheduling, and delivery location.
Large and industrial machine systems ship via insured freight carriers and may require an adult (18+) signature upon delivery.
White glove delivery services may be available on select machine systems and locations for an additional fee.
For full details, please review our Shipping Policy.
Return Policy
Due to the nature of industrial sewing, embroidery, and quilting equipment, all returns require prior authorization and are reviewed on a case-by-case basis.
Return requests must be submitted within 30 days of delivery for evaluation and approval. Equipment must be unused, uninstalled, and returned in original packaging when applicable.
Approved returns may be subject to return shipping costs and restocking fees depending on the manufacturer, supplier, and condition of the item.
For warranty concerns, shipping damage, or defective equipment, please contact us promptly so we can assist with evaluation and resolution.
For full details, please review our Return & Refund Policy.