Brass bushing for the grinding-stone shaft (albero porta smeriglio), a spare part for the sharpener assembly of Kolossal slicers. The bushing is the sliding support that houses and guides the rotation of the shaft carrying the sharpener's grinding stones: brass ensures a low-friction, wear-resistant coupling, absorbing the shaft's radial play during blade sharpening.

• Material: brass
• Application: grinding-stone shaft
• Compatibility: sharpener assembly of Kolossal slicers

Replacement becomes necessary when the bushing is worn or out-of-round: excessive play on the grinding-stone shaft compromises sharpening flatness and can cause vibration during operation of the sharpener.