China wholesale Upper Roller - Excavator undercarriage part carrier/up roller Komatsu PC200 made in China – Heli

Roller shell material:50Mn/45#
Surface hardness:HRC48-58
Quench depth:>4mm
Roller shaft material:45#

Surface hardness:HRC48-58
Quench depth:>2mm
Base collar material:QT450-10/45#
WEIGHT:20Kg

Introduction of carrier wheels
Rollers crawler construction machine is an area of undercarriage parts, and its primary role is to support the weight of the excavator and a bulldozer, so proceed along the track wheels.

The purpose of the sprocket wheel
The supporting wheel is one of the four wheels of the crawler-type construction machinery chassis. The supporting wheel Its main function is to support the weight of excavators and bulldozers, allowing the crawlers to move along the wheels.

Why choose us?
From the forging of the roller shell to the heat treatment and finishing of the product, we have a complete production line. The internal parts of the product are copper sleeves, oil seals and O-rings. We purchase products from large domestic high-end manufacturers. We also Liugong’s lubricants. So choose us, the best cost performance and stable product quality.