Doosan DH55 idler Excavator undercarriage parts

VIO55 idler Product Description

• Place of Origin: Fujian, China
• Condition: New
• Packing: Wooden case, Pallet
• Material: Alloy Steel or Steel
• Warranty: 1 Years
• Sample: Available
• Size: Standard
• Color: Customer’s Request
• Logo: Customer’s Request
• Technical: Forging and Casting
• OEM:Avaliable
• Packaging Details: in wooden case or fumigate pallet
• Port: Xiamen Port
• Supply Ability: 50000 Pieces / Month

VIO55 idler Products Details

• The wheel body adopts a unique heat treatment method to ensure surface hardness and hardened layer.
• The support has strong wear resistance, long-lasting durability, and a perfect sealing design.
• The precisely machined sealing surface and the surrounding sealing design can guarantee the sealing effect of the product from beginning to end.
• Durable,wear resistant Cr-Al alloy floating seals&elastic rubber O-rings.
• High grade #45 wear resistant steel,tempered&high frequency treated.
• Wear resistant surfaces,medium frequency quenched.
• High grade bi-metal copper bushings.

Key advantages

1. Superior Material & Hardness
Made of ZG40Mn steel with 56–62 HRC surface hardness, delivering exceptional wear resistance and impact toughness for long-term use.

2. Lifetime Lubrication Design
Sealed and permanently lubricated bearing assembly eliminates daily greasing, reduces maintenance costs, and prevents dust/moisture ingress.

3. Heavy-Duty Structural Integrity
Reinforced one-piece casting resists deformation under load, ensuring stable track guidance and consistent tension on rough terrain.

4. Perfect Fit for Vio17 Undercarriage
Engineered to match Yanmar Vio17’s rubber track system ， ensuring precise track alignment, smooth travel, and minimal vibration.

5. Enhanced Durability & Reliability

Withstands harsh jobsite conditions, reduces track wear/derailment risk, and extends the service life of the entire undercarriage.

6. Cost-Effective & Low Maintenance

12-month warranty, no routine lubrication, and easy bolt-on replacement minimize downtime and total ownership cost.

VIO55 idler Applications

Idlers are core components of excavator chassis, essential for the normal operation of excavators in various scenarios.

They are widely used in construction projects, mining operations, road construction, municipal engineering, and agricultural machinery.

Whether it is earthmoving, digging, loading or leveling, our idlers provide reliable support for excavators, ensuring stable and efficient operation in complex working conditions.

They are also essential replacement parts for excavator maintenance, ensuring the continuous and efficient operation of engineering machinery.