Application
The ceramic pulley is an accessory for coil winding tensioning device. During the wire passing of the enameled wire, particularly when the wire changes direction at a large angle, the pulley is designed to prevent the wire from deviating off of the guide roller.

Materials
Guide roller: 99% purity AL2O, with a hardness of HRC88, and a density of 3.85g/cm2 all ensure an excellent wear resistance
Sheath: there are two optional materials: ceramic and plastic. The QH007 and QH008 sheath are plastic, and are harder to break off when compared to a ceramic sheath.

Features
1. The ceramic guide roller at the middle of the ceramic pulley for the coil winding tensioning device is produced using an ultra-precise polishing so that the guide roller roughness is under Ra 0.2, thus ensuring no damage to the enameled wire film.
2. The magnetic coil is equipped with a precise bearing in order to maintain the stability of the winding tensile force. It also extends the ceramic pulley’s service life.

Optional types