Premium Aluminum L Bobbins - Class L Industrial - Part 272152

Premium aluminum L bobbins (Class L) for industrial sewing machines. Lightweight aluminum construction delivers smoother operation, longer life, and less machine wear compared to standard metal or plastic bobbins. Perfect for Singer Industrial, Consew, Juki, and Kenquilt machines.

IMPORTANT: No Notch Design

These bobbins have a smooth center hole with NO NOTCH. Check your current bobbins before ordering:

• No notch (smooth hole) - This is the correct bobbin! ✓
• Has a notch - You need our 55623 series with notch instead

Most industrial machines use no-notch bobbins. Some home machines also work with no-notch, but many require the notch version. When in doubt, check your existing bobbins!

Why Premium Aluminum?

• Lighter weight - Less stress on bobbin case and tension spring
• Smoother operation - Natural lubricity reduces friction for consistent tension
• Corrosion resistant - Won't rust like steel bobbins
• Less machine wear - Softer aluminum is gentler on bobbin case
• Better heat dissipation - Prevents thread damage during high-speed sewing
• Professional durability - One-piece construction, no holes

Specifications

• Type: L bobbin / Class L / L Style
• Dimensions: 21mm diameter x 9mm height x 6mm center hole
• Material: Premium aluminum
• Construction: One-piece, no holes
• Notch: No notch (smooth center hole)
• Part number: 272152
• Quantity: 10 bobbins per pack

Compatible Machines - Class L Bobbin (No Notch)

Singer Industrial: 188K, 188U, 191K, 195K, 196K, 241, 245, 251, 281, 291U, 366K, 391U, 400W, 402W, 410W, 451K, 491D, 491U, 600W, 660A, 770, 95, 96

Consew Industrial: 210, 220, 230, 231, 2230

Juki Industrial: DDL-227, DDL-555, DDL-5530, DDL-5550, DDL-8500, DDL-8700

Kenquilt: 622

And other industrial single-needle machines that use Class L bobbins (21mm x 9mm) without a notch.

Premium Quality for Professional Results

When you're running an industrial sewing operation, bobbin quality matters. These premium aluminum L bobbins deliver consistent, reliable performance with smoother thread delivery, reduced machine wear, and longer bobbin life. Stock up with this convenient 10-pack and keep your operation running smoothly!