Large Stock Kobelco SK30 Excavator Undercarriage Carrier Roller
The Kobelco SK30 Excavator Undercarriage Carrier Roller is a high-quality upper roller designed to provide stable track support and smooth crawler movement for compact excavators. As an essential undercarriage component, the carrier roller supports the upper track chain, helps maintain proper track alignment, and reduces vibration during machine operation. It is widely used for Kobelco SK30 mini excavators, including SK30SR and related models depending on machine configuration.
Manufactured from premium alloy steel, this carrier roller delivers excellent strength, impact resistance, and wear performance. The roller body is produced through precision forging, CNC machining, and heat treatment processes to improve durability and surface hardness. The reinforced structure allows the roller to withstand continuous loads and harsh working conditions, helping extend service life and reduce replacement frequency.
The Kobelco SK30 carrier roller features a reliable sealing system that protects internal components from dust, mud, and water contamination. The optimized floating seal design maintains effective lubrication, reduces friction between moving parts, and ensures smooth rotation during long working hours. This helps improve excavator efficiency and lowers maintenance costs in construction, landscaping, and earthmoving applications.
Designed according to original equipment dimensions, the SK30 mini excavator carrier roller provides accurate installation and excellent compatibility. It helps maintain correct track tension, reduce premature track wear, and restore the stability of the undercarriage system. Replacement references may include OEM numbers such as 4392416 and 04312-00500 depending on the specific excavator model and configuration.
With large stock availability, factory-direct supply, and strict quality inspection, our Large Stock Kobelco SK30 Excavator Undercarriage Carrier Roller is an ideal solution for excavator dealers, repair shops, and equipment owners. It provides reliable durability, smooth operation, and cost-effective performance for long-term mini excavator maintenance.
| Item | Specification |
|---|---|
| Product Name | Kobelco SK30 Excavator Carrier Roller |
| Part Type | Undercarriage Parts / Upper Roller |
| Compatible Machine | Kobelco SK30 Mini Excavator |
| Compatible Models | SK30 / SK30SR / SK30SR-5 / SK30SR-6 |
| OEM Reference | 4392416 / 04312-00500 (According to Configuration) |
| Application | Construction, Landscaping, Agriculture, Earthmoving |
| Material | Forged Alloy Steel / 45Mn Steel |
| Manufacturing Process | Forging, CNC Machining, Heat Treatment |
| Surface Hardness | HRC 52-58 |
| Hardness Depth | 5-8 mm |
| Sealing System | Floating Seal System |
| Lubrication Type | Internal Oil Lubrication |
| Feature | High Strength, Wear Resistance, Smooth Rotation |
| Installation | Direct Replacement |
| Quality Control | Dimension Inspection & Performance Testing |
| Condition | New Replacement Part |
| Warranty | 12 Months / 2000 Working Hours |
| Packaging | Steel Pallet / Export Wooden Case |
| Supply Type | Factory Direct Wholesale |
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