18 x 49 ironing board cover_pvc dining table cover

Ceramic materials, such as silicon nitride, are gaining popularity for use in taper roller bearings because of their low density, high hardness, and excellent resistance to heat and corrosiontaper roller bearing material. Ceramic bearings can operate at higher speeds with less lubrication than their metal counterparts. However, they are brittle and sensitive to impact loads, which can limit their use in certain applications.