Bernette Bobbin Case for B77, B79

The Bernette Bobbin Case for the B77 and B79 is a genuine replacement part designed to maintain precise thread tension and consistent stitch quality on your Bernette machine. Whether your original case has worn over time or you want a spare on hand for uninterrupted sewing or embroidery sessions, this is the exact component your machine was built to use.

Key Features

• Genuine Bernette part engineered specifically for the B77 and B79 sewing and embroidery machines.
• Maintains consistent bobbin thread tension for smooth, even stitches across all fabric types.
• Precision-manufactured to fit securely in the bobbin area without adjustment or modification.
• Durable metal construction withstands repeated insertion and removal over years of regular use.
• Keeping a spare bobbin case on hand eliminates downtime during long sewing or embroidery projects.
• Easy to insert and remove, making bobbin changes quick and straightforward.

Specifications

This bobbin case is the right choice for any B77 or B79 owner who wants to protect stitch quality with a genuine replacement part — whether as an immediate fix or a reliable spare. Janome backs this machine with a 25-year mechanical warranty, 2-year electrical warranty, and free parts and labor during the first year. OSP Machines is an authorized Janome dealer and provides free support for the life of your machine. If you have any questions about fit, installation, or compatibility, the OSP Machines support team is available to help at no charge for as long as you own your machine.

Compatible Machines

• Bernette B77
• Bernette B79

Frequently Asked Questions

Is this bobbin case compatible with both the Bernette B77 and B79?

Yes. This genuine Bernette bobbin case is designed to fit both the B77 and the B79 sewing and embroidery machines. It is not compatible with other Bernette models outside this series.

Is this a genuine Bernette part or an aftermarket replacement?

This is a genuine OEM Bernette part, meaning it is manufactured to the same specifications as the case that came with your machine. Using a genuine part ensures proper fit and consistent thread tension.

How do I know if my bobbin case needs to be replaced?

Common signs include inconsistent thread tension, thread breakage, skipped stitches, or visible wear, nicks, or burrs on the case itself. If cleaning and rethreading do not resolve tension issues, replacing the bobbin case is a good next step.

What warranty applies to this part?

Janome backs this with a 25-year mechanical warranty, 2-year electrical warranty, and free parts and labor during the first year. OSP Machines is an authorized Janome dealer and provides free support for the life of your machine.

Can I get help with installation or tension adjustment after my purchase?

Yes. OSP Machines provides free lifetime support for every purchase made through our store. If you have questions about installing the bobbin case or dialing in your thread tension, our team is available to help at no charge.