What the BC-DBM(1)-NBL2 Is
The BC-DBM(1)-NBL2 is an industrial sewing machine part made of steel. In the supplier's description, bobbin cases of this type are produced with high-quality materials and workmanship, and are intended for smoother and more stable operation while winding or feeding thread. That stability matters most on long production runs, where a case that grips the thread unevenly shows up as loose stitches, tight stitches or thread breaks.
The part is listed under the bobbin case subcategory of the sewing machine parts and accessories range, alongside rotary hooks, bobbins, presser feet and other consumables and wear parts.
How a Bobbin Case Controls Lower Thread Tension
A bobbin case holds the bobbin and passes the lower thread through a tension spring and a small set of guides before it reaches the stitch point. The spring pressure on that path sets how much resistance the lower thread meets as the hook pulls it around each stitch. When the setting is correct, the upper and lower threads meet inside the fabric. When it drifts, the symptom appears on the fabric surface rather than at the case itself.
Typical signs of a tension problem include:
- Loops of lower thread visible on the top of the seam
- The upper thread pulling the lower thread up through the fabric
- Uneven stitches that change from one seam section to the next
- Thread fraying or breaking near the bobbin case
For a step-by-step look at causes and corrections, read bobbin case tension problems: causes and fixes. Because the bobbin case works together with the hook, it is also worth understanding the rotary hooks for industrial sewing machines range when diagnosing stitch faults.
Uses, Including Embroidery and Hemming
Bobbin cases of this design are used wherever a machine forms a lockstitch with a lower thread supply. The supplier lists embroidery and hemming work among the uses, and the same part type appears across garment assembly, finishing and general stitching work. In embroidery, a steady lower thread path helps keep the underside of the pattern clean; in hemming, it helps hold an even seam along the fold. In both cases the requirement is the same: the case must fit the machine's hook and bobbin size exactly.
Matching by Machine Model and Part Number
Bobbin cases are not interchangeable across hook types. Two cases can look similar and still differ in diameter, height, spring position or the shape of the thread slot. The reliable way to order is to match the part number to the machine, not to match by appearance.
Before requesting a quotation, confirm:
- The machine model and the hook type fitted to it
- The existing part number on the case, if one is legible
- The bobbin size used by the machine
- The thread type and size the machine runs most often
The BC-DBM(1)-NBL2 is the reference model for this category. The wider bobbin case subcategory is matched on quotation: send your machine details and the team will confirm the correct case rather than working from an assumed part number. Specifications for other cases are confirmed on quotation.
Specifications
| Item | BC-DBM(1)-NBL2 |
|---|---|
| Product name | Industrial sewing machine parts |
| Part number | BC-DBM(1)-NBL2 |
| Brand | ANYSEW / HAYA |
| Material | Steel |
| Delivery options | By sea / by air / by express |
Delivery Options
The supplier lists three delivery options for this part: by sea, by air and by express. The right choice depends on urgency and order size. Express suits a small urgent replacement; air freight suits a mid-sized order needed quickly; sea freight suits larger consolidated orders where transit time is less critical. Shipping arrangements sit within the supplier's one-stop service, which also covers product customization, quality inspection, installation and debugging, after-sales maintenance and spare parts supply. Certificates available upon request. Order quantity and lead time are confirmed on quotation.
Buyer Checklist
Use this list before you send an enquiry for bobbin cases:
- Machine model and hook type recorded
- Existing part number noted, or a clear photo of the old case
- Bobbin size confirmed
- Thread type and size noted
- Quantity required for the order
- Preferred delivery method: sea, air or express
- Any customization requirement stated up front
Request a Quotation
To confirm the BC-DBM(1)-NBL2 for your machine, or to have the wider bobbin case range matched to your equipment, send your machine model, part number and quantity through the contact page. The team will reply with availability, pricing and delivery details confirmed on quotation.