OEM Supply EX400H-3 Track Carrier Rollers / Hitachi Excavator Track Rollers

1. High quality material
Raw material of steel purchased from good steel groups to ensure quality.

2 . O-ring : Have better oil leaking resistance and high-temperature resistance

3 . Forged roller shell made of quality steel refines metal gains to form forge flow line
with reasonable distribution as stress characteristic

4 . Heat- treatment, which is integrated heating and surface spray cooling under high pressure, to improve internal mechanical properties to prevent deformation under heavy load, meanwhile high pressure hardness and deep harden depth result in longer life.