Kobelco SK200-3 Carrier roller Excavator undercarriage parts

SK200-3 Carrier Roller 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

SK200-3 Carrier Roller Products Details

• The carrier roller for the LG60 excavator is a critical component of the undercarriage system, designed to support the weight of the track chain and prevent it from sagging. Manufactured using high-precision forging and heat-treatment processes, this roller ensures the track maintains proper tension and alignment during operation.
• Compatibility: Specifically engineered for SK200-3 models.
• Material: High-strength alloy steel (40Mn2 or equivalent).
• Hardness: Surface hardness reaches HRC 52-60 with a depth of 4mm-8mm for maximum wear resistance.
• Sealing: High-performance mechanical seals and premium lubricants for maintenance-free operation.

Key advantages

1. Premium Alloy Steel Construction
The SK200-3 carrier roller is made of high-grade 35MnB/50Mn alloy steel, which provides exceptional structural strength and outstanding load-bearing capacity (up to 50 tons). It can effectively resist bending, cracking and deformation even under long-term heavy-load operation, ensuring stable performance in harsh working conditions.

2. Superior Wear Resistance & High Hardness
Adopting precision quenching and tempering technology, the surface hardness of the carrier roller reaches HRC 40–55, with a hardened layer depth of 4–10mm. This advanced heat treatment process greatly enhances wear resistance, effectively reducing abrasion caused by contact with the track, extending the service life of the product and reducing the frequency of replacement and maintenance.

3. Enhanced Sealing & Lubrication System
Equipped with high-quality floating oil seals and a sealed internal oil cavity design, the SK200-3 carrier roller can effectively prevent oil leakage and the ingress of dust, mud, water and other impurities. The built-in lubrication system ensures long-term and stable lubrication of internal components, avoiding premature wear due to insufficient lubrication and realizing trouble-free operation for a long time.

4. Precision Engineering & Perfect Compatibility
Manufactured with CNC machining technology, the carrier roller maintains strict dimensional accuracy and consistency, which is a direct OEM replacement part for Kobelco SK200-3 excavators. It perfectly matches the undercarriage of the equipment, requiring no additional modification during installation, saving time and labor costs.

5. Optimized Track Stability & Smooth Operation
The carrier roller plays a key role in supporting and tensioning the track of the excavator. It effectively prevents track sagging, deviation and vibration during operation, ensuring the excavator travels stably and straightly. Even on rough, uneven terrain, it can maintain smooth movement, improving work efficiency and operational safety.

6. Rigorous Quality Assurance
The production process of the SK200-3 carrier roller complies with ISO9001 quality management system standards, and each product undergoes 100% strict inspection (including hardness testing, dimensional measurement, visual inspection, etc.) before leaving the factory. It is backed by a 12-month quality warranty, providing customers with reliable product guarantee and peace of mind.

SK200-3 Carrier Roller Applications

Carrier rollers are core components of excavator undercarriages, essential for the normal operation of excavators in various scenarios.

They are widely used in construction sites, mining areas, road construction, bridge engineering, and agricultural land reclamation.

Whether it is earthmoving, excavation, loading, or leveling, our carrier rollers provide reliable support for excavators, ensuring effi

cient and stable operation of the equipment.

They are also suitable for maintenance and replacement of old undercarriage parts, helping customers reduce equipment downtime.