HIGH QUALITY,HIGH ACCURACY,LONG SERVINCE LIFE.

Roller Body:Adopting the good hardenability 40 Mn2 steel through forging. The heat treatment of tempering and medium-frequency induction surface hardening assure it’s strength and wear resistance. The surface HRC IS 52-60, depth of hardening is 8-20mm.
Axle:Adopting 45# steel,tempering and medium-frequency induction surface hardening.
The surface HRC is 52-60,depth of hardening is 3-6mm,comprehensive is good.
Floating seal:Adopting cr-al alloy,HRC 65-72, the roughness of working surface 0.1μM-0.2μM.
O-ring:Adopting the raw material of butadiene-acrylonitrile rubber which is the copolymerization of butene and acrylonitrile into produce. That has better oil resistance and high-temperature resistance.

The Carrier Roller surface hardness ranges from HRC 50 to 56 ,depth from 8mm to 12mm.