Excavator Undercarriage Parts EX400 Front Idler For HITACHI?>
Product origin :Quanzhou Fujian China
Delivery time :30days
Supply capacity :20000pcs
Our Idler is made of alkaline phenolic resin sand or water glass sand.
The wheel and rail surface is heated by matrix normalizing+medium frequency induction.
The surface hardness achievable HRC48-58 and the hardening depth is 4-6mm (HRC45) the above.It has rugged high impact and proper wear resistance.
1. The Idler body is a casting part, and the wheel body has durability and rust resistance after special heat treatment.
2. High hardness wear-resistant chrome aluminum alloy floating oil seal and elastic rubber O-ring.
3.The Idler with the hardness of the wheel body diameter and the design of the guide shaft and the reasonable outer diamete to increases the wear life.
4. All of leading shaft, copper bushing and sealing parts are passed through the fully automatic production system, and the precision is controlled by the numerical control computer to ensure the accuracy of the shaft.