MA and MB spherical roller bearings are professional heavy‑duty models designed for high‑frequency vibration and continuous high‑temperature working conditions. Ordinary CA and CC bearings are easy to fatigue failure on vibrating screening equipment.

The service life of spherical roller bearings mainly depends on cage structure suffixes rather than basic model numbers. Bearings with the same basic size but different CA and CC suffixes share identical mounting dimensions but completely different internal stability and shock resistance.

Spherical roller bearings are widely used in heavy-duty industrial equipment including mining, metallurgy, cement and mechanical transmission. Many equipment failures are caused by incorrect bearing suffix selection, even if the basic bearing model is correct. Different suffixes represent completely internal structures, cage types, load capacity and vibration resistance, though the outer mounting dimensions remain the same. They cannot be replaced blindly.