964277 Excavator Parts E320 Carrier Roller

Caterpillar E320 carrier roller is an important part of the excavator chassis, located in the X frame above, the main role is to support and guide the track, to maintain its linear movement.It is generally composed of wheel body, shaft, floating oil seal, O-ring, etc. The wheel body is forged with 40Mn2 steel, tempered and mid-frequency induction surface quenching, with high strength and good abrasion resistance; the floating oil seal is made of Cr-Al alloy, with high hardness and low roughness; the O-ring is made of nitrile rubber, with good oil resistance and high temperature resistance.The sprocket is suitable for many Caterpillar excavator models, such as 320C, 320D, etc