Feature:
1)Material: 40 CR or 50Mn;
2)Surface hardness: HRC 50-56, depth 4-10 mm;
3)Each roller shell is carefully heat treated to ensure long wear life and stress resistence;
4)Each roller is precision machined to house special high impact low wear bimetal bushings.
5)Reliable and long life time guaranteed;
6)High strength and superior wear resistence.