Alibaba gold supplier Kobelco undercarriage spare parts excavator track roller for sale

1. Materail:  40SiMnTi,50Mn

2. Color: Yellow or as customer's request

3. Technique : Forging,Casting

4. Surface treatment : Heat-treated

5. Mechanical properties: HRC53-56

6. Warranty : Over 2000 working time

7. Characterristics:

A. Hign-degree harden treatment ensure the most strength and wearness.

B. The track pin is done the tempering and the surface intermediate frequency quenching treatment,

   which ensure the sufficient hardness of core and abrasion resistance of external surfaces.

C. The track bushing is done the tempering ensure the reasonale hardness of core and abrasion

    resistance of internal and external surfaces.