Over time, chock and housing surfaces can sustain damage resulting from wear, corrosion and hammering. While flat bearings and lubrication are meant to protect against these dangers, improper flat bearing materials, improper lubrication as well as years of production can result in surface damages that require expert machining to repair.
Left uncorrected the damaged mounting surfaces can lead to even more damage. Bearings cannot be mounted flush resulting in uneven impact and wear protection, corrosion from water seeping behind the bearings and an increased or uneven gap which hinders proper lubrication and roll position. This dramatically reduces overall production quality.