Shanghai SMB group new condition excavator spare parts of undercarriage of track chain and links
1. Materail: 40Mn,50Mn
2. Color: Yellow or black or as customer's request
3. Technique : Forging,Casting
4. Surface treatment : Heat-treated
5. Mechanical properties: HRC53-56
6. Warranty :6 months or 1year
1.Hign-degree harden treatment ensure the most strength and wearness.
2.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.
3.The track bushing is done the tempering ensure the reasonale hardness of core and abrasion
resistance of internal and external surfaces.