Metal Bobbins 6-Pack for Select Vintage Bernina Models

Quality replacement metal bobbins with smooth core and winding slot, designed for 15 specific vintage Bernina models. Larger diameter (21.8mm) than standard Bernina bobbins. Durable metal construction for long-lasting performance.

IMPORTANT: Check Compatibility First

These bobbins fit ONLY the 15 models listed below. They do NOT fit all Bernina models. Many vintage and modern Bernina models use different bobbin sizes.

Compatible Bernina Models (15 Total)

100-Series: 117, 217

500-Series: 540

600-Series: 640, 640-2 (NOT Artista 640)

700-Series: 740, 741, 742, 750

800-Series: 840, 841, 842, 850

900-Series: 940, 950

Product Specifications

• Part Number: 330.026.030
• Quantity: 6 metal bobbins
• Outside Diameter: 21.8mm (larger than standard 20.6mm)
• Height: 7.3mm (shorter than standard 11.7mm)
• Axis Diameter: 6mm
• Design: Smooth core with winding slot, one-piece construction, no side holes
• Material: Metal (not plastic)
• Type: Quality replacement (aftermarket)

Key Features

• Smooth Core with Winding Slot: Precision slot engages securely with bobbin winder spindle, smooth surface won't snag thread
• Metal Construction: Durable metal provides proper weight for optimal tension, won't crack or warp like plastic
• Vintage Design: Matches original specification for these classic Bernina models
• 6-Pack Value: Keep multiple thread colors wound and ready

Different from Other Bernina Bobbins

Bernina has used several bobbin types over the years. Always use the correct type for your model:

• Part 330.026.030: 21.8mm diameter, 7.3mm height, smooth core (for 15 select vintage models)
• Part 0115367000: 20.6mm diameter, 11.7mm height, diamond cut core (for 125-550QE series)
• Part 0060265000: Different size, diamond cut core (for Artista/Aurora series)

Why Metal Bobbins Matter

Vintage Bernina machines were designed for metal bobbins. Metal provides proper weight for optimal tension, durability that lasts decades, smooth operation in vintage bobbin cases, and heat resistance during extended sewing. Using the correct metal bobbins helps preserve your vintage machine's performance.

Why Stock Extra Bobbins

• Keep multiple thread colors wound and ready
• Save time - no rewinding when changing colors
• Replace worn bobbins that develop burrs over time
• Hard to find - stock up on these vintage-specific bobbins

Bobbin Care Tips

• Wind evenly using your Bernina's bobbin winder
• Don't overfill - leave a small gap at the top
• Check for burrs regularly and replace damaged bobbins
• Store wound bobbins in a bobbin box to prevent tangling
• Use the winding slot - engage it on the spindle for secure winding

About These Vintage Bernina Models

These select vintage Bernina models represent classic mid-to-late 20th century engineering. Known for robust construction and reliability, many are still in active use today. Models like the 830, 840, 850, 940, and 950 are particularly sought-after by vintage sewing enthusiasts. With proper maintenance and correct replacement parts like these metal bobbins, they continue to deliver excellent stitch quality decades after manufacture.

Note

IMPORTANT: Does NOT fit Bernina 640 Artista (uses different bobbin). Fits standard 640 and 640-2 only. Always verify your model uses this bobbin type before purchasing. Check your manual or measure existing bobbins to confirm 21.8mm diameter and 7.3mm height.