Back-Up Roll Bearings include main bearings and thrust bearings.

The main bearing is suitable for back-up rolls, ensuring the correct position of the back-up rolls in the frame, with a small coefficient of friction, reducing friction during the rotation of the back-up rolls, and extending its service life; The main bearing has sufficient strength and stiffness to cope with high loads and frequent rotations, ensuring the stability and durability of the back-up rolls.

The material of the main bearing is bearing steel GCr15 and carburizing steel G20Cr2Ni4A.

The main function of thrust bearing is to withstand axial force and prevent axial movement; It also reduces friction and wear and improves the service life and efficiency of the back-up rolls.