Purpose:

The rubber ring is used in bobbin winding machines to drive and control the rotation of the bobbin during the winding process. It acts as a friction drive wheel.

Material:

Made of durable, high-friction rubber
Sometimes reinforced with a metal or plastic core for added stability

Shape & Size:

Typically circular like a small donut or O-ring
Comes in various diameters to match different machine models

Function:

Presses against the bobbin or spindle to rotate it smoothly
Ensures consistent speed and tension while the thread is wound
Absorbs vibration and reduces slippage between moving parts

Common Applications:

Domestic and industrial sewing machines
Embroidery machines Domestic
Textile manufacturing equipment

Replacement Part:

Often sold as a spare part, especially in older or high-use machines, since the rubber can wear out or harden over time

Rubber Ring Bobbin Winder