Yarn Guides for Circular Knitting Machines | Page 5

Ceramic is far harder than the yarn running over it, so the surface stays smooth for much longer. A metal eyelet grooves, and once a groove has a sharp edge it starts to cut filaments.

Run a fingernail or a piece of yarn through the bore. If it catches, the guide is grooved. Guides are usually replaced as a set across a feeder row so tension stays even.

Often yes, if the photo shows the part beside a ruler and you tell us the machine and the position. Bore diameter and mounting form are what we need to confirm.

Yes. Guide brackets, bars and holders are listed in this group alongside the ceramic parts.