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Product Overview
The idler (front idler) is a key component of the undercarriage system, designed to guide the track chain and maintain proper track tension. It works together with the recoil spring and track adjuster to ensure stable track alignment and smooth machine operation.
Our idlers are manufactured under strict quality control standards to provide high impact resistance, excellent wear performance, and long service life, making them suitable for demanding construction and mining environments.
Key Specifications
| Item | Description |
| Product Name | Idler / Front Idler |
| Application | Excavator & Bulldozer Undercarriage |
| Material | 50Mn |
| Manufacturing Process | Casting / Forged (Optional) |
| Heat Treatment | Quenched & Tempered |
| Surface Hardness | HRC 50–56 (Typical) |
| Sealing Type | Mechanical Seal |
| Color | Yellow / Black / Custom |
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Key Features
High Impact Resistance – Strong structure designed to withstand heavy loads and shocks
Excellent Wear Resistance – Heat-treated tread surface ensures long working life
Stable Track Guidance – Maintains correct track alignment and reduces derailment risk
Reliable Sealing Performance – Prevents dirt ingress and lubricant leakage
Extended Service Life – Reduces maintenance frequency and operating costs
Applications
The idler is widely used in:
General construction projects
Earthmoving and excavation operations
Road and infrastructure construction
Mining, quarry, and forestry applications
Suitable for standard and heavy-duty working conditions.
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Compatible Machines
CAT / KOMATSU / HITACHI / VOLVO / JCB / DOOSAN / HYUNDAI series
Excavators and bulldozers using undercarriage systems
For exact compatibility (e.g. CAT 320B / KOMATSU PC200), please contact us with your machine model or serial number.
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Manufacturing & Quality Control
High-quality raw material selection
Precision casting or forging process
Professional heat treatment (Q&T)
CNC machining for accurate dimensions
100% inspection of appearance, hardness, and sealing performance
Each idler is strictly inspected to ensure consistent quality before delivery.
Packaging & Delivery
Packing: Wooden case / Pallet
Export-standard anti-rust protection
OEM & ODM service available
Stable supply for bulk and long-term orders
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Why Choose Us
Professional Undercarriage Parts Manufacturer
Rich experience with CAT & KOMATSU compatible parts
Stable quality and competitive factory pricing
Fast response and reliable technical support
Inquiry
Looking for reliable excavator idlers for your machines?
Contact us today for price, lead time, and technical support.
Custom branding and packaging are available.
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