Prym Metal Bobbins - Ø 20.5 mm
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Product Information
Full details
This guide is for home sewing machine users who need reliable lower thread storage. The key benefit is the durable metal construction that ensures consistent stitch quality. A potential caveat is that these bobbins are specifically designed for sewing machines with CB hooks and require a bobbin case. These Prym Metal Bobbins, a pack of 5, are essential components for your sewing machine, holding the lower thread to form stitches with the upper thread.
All features
| Model Part Number | 611350 |
|---|---|
| Brand | Prym |
Extended Product Information
FAQs
What does 'CB hook' mean?
CB hook refers to a specific type of bobbin driver mechanism common in many home sewing machines. It's known for its reliability and ease of use. These bobbins are designed to fit within that system.
Do I need a special bobbin case for these metal bobbins?
Yes, these bobbins are designed to be used with a standard bobbin case that is compatible with your sewing machine's CB hook system.
Can I use these bobbins with any sewing machine?
No, these bobbins are specifically for sewing machines that use a CB hook system and a bobbin case. They are not compatible with machines using rotary hooks or other bobbin mechanisms.
How many bobbins are in a pack?
Each pack contains 5 metal bobbins.
Are these bobbins the same size as plastic ones?
Prym offers both metal and plastic bobbins for CB hooks. These metal ones have the same diameter (20.5 mm) and height (11.7 mm) as their plastic counterparts for CB systems.
How do I know if my machine has a CB hook?
Consult your sewing machine's user manual. It will specify the type of hook system your machine uses. CB hooks are very common in older and many current domestic models.
Can I wind different thread colors onto these bobbins?
Yes, you can wind any standard sewing thread color onto these bobbins. Having multiple pre-wound bobbins is a common practice for efficient sewing.
Troubleshooting
Thread bunching or skipping stitches
Ensure the bobbin is wound evenly and is correctly seated in the bobbin case. Check that the upper thread tension is properly set. Verify compatibility with your machine's CB hook.
Bobbin not spinning freely
Remove the bobbin and bobbin case. Clean any lint or debris from the bobbin case area and the bobbin itself. Reinsert carefully.
Thread breaks frequently from the bobbin
Check the bobbin for any nicks or rough edges. Ensure the thread is not snagging on anything as it unwinds. Confirm correct bobbin winding.
Pros and Cons
Pros
- Durable metal construction resists damage and warping.
- Ensures consistent thread tension for reliable stitches.
- Specifically designed for widely used CB hook systems.
- Standard dimensions ensure compatibility with many sewing machines.
- Includes 5 bobbins per pack for convenience.
Cons
- Only compatible with sewing machines that have a CB hook.
- Requires a separate bobbin case to function.
- Metal may be heavier than plastic alternatives, though usually not a functional issue.
- Less transparent than plastic bobbins, making it harder to gauge remaining thread visually.
Setup, Compatibility & Care
Setup:
- Ensure your sewing machine is equipped with a CB hook system.
- Place the metal bobbin into your sewing machine's bobbin case.
- Thread the lower thread through the bobbin case mechanism according to your machine's manual.
- Wind the desired thread onto the bobbin following your machine's instructions.
Compatibility:
- These bobbins are 100% compatible with sewing machines that use a CB hook mechanism and a bobbin case.
- Always consult your sewing machine's manual to confirm compatibility with bobbins of these specific dimensions (20.5 mm diameter, 11.7 mm height).
Care:
- Cleaning: Wipe the metal bobbins with a dry or slightly damp cloth to remove any lint or dust. Avoid harsh chemicals.
- Storage: Store bobbins in a dry place. A dedicated bobbin box (available separately for larger quantities) is recommended to keep them organized and protected.