The Carrier Roller, also known as Top Roller or Upper Roller, is installed above the track frame of the Kobelco SK200-3 crawler excavator.
Its primary function is to support the upper track chain and maintain correct chain alignment while the machine is travelling. A properly functioning carrier roller helps reduce friction, vibration and unnecessary wear throughout the undercarriage system.
A worn or seized carrier roller may result in:
Our SK200-3 carrier rollers are manufactured using professional undercarriage production processes and are suitable for equipment dealers, distributors, repair workshops and fleet operators.
Compatible with:
Kobelco SK200-3
The exact mounting configuration should be confirmed using the machine serial number or existing carrier roller before ordering.
Manufactured from:
40Mn2 Alloy Steel
Providing:
The roller working surface is subjected to controlled heat treatment.
Typical specification:
This improves resistance against continuous track-chain contact and abrasive working environments.
Equipped with:
The sealed structure helps retain lubricant and protect internal components against dust, mud and water contamination.
Manufactured with controlled:
Designed for bolt-on replacement when the correct configuration is selected.
| Item | Specification / Detail |
|---|---|
| Product Type | Excavator Undercarriage Carrier Roller |
| Machine Model | Kobelco SK200-3 |
| Compatible Models | SK200-3 |
| Machine Type | Crawler Excavator |
| Machine Class | Approx. 20 Ton |
| OEM Part Number | Confirm by machine serial number |
| Material Grade | 40Mn2 Alloy Steel |
| Manufacturing Process | Forging / Casting + CNC Machining |
| Heat Treatment | Induction Hardening |
| Surface Hardness | HRC 52-58 |
| Hardening Depth | 5mm-10mm |
| Seal System | Heavy-duty Floating Oil Seal |
| Lubrication System | Lifetime Internal Lubrication |
| Bearing Structure | Hardened Shaft + Wear-resistant Bushing |
| Quality Inspection | Dimension, Hardness and Sealing Inspection |
| Mounting Configuration | OEM Standard |
| Installation | Bolt-on Direct Replacement |
| Application | Construction / Mining / Earthmoving |
| Shipping Note | Heavy Component — Sea Freight Recommended |
The Carrier Roller, also known as Top Roller or Upper Roller, is installed above the track frame of the Kobelco SK200-3 crawler excavator.
Its primary function is to support the upper track chain and maintain correct chain alignment while the machine is travelling. A properly functioning carrier roller helps reduce friction, vibration and unnecessary wear throughout the undercarriage system.
A worn or seized carrier roller may result in:
Our SK200-3 carrier rollers are manufactured using professional undercarriage production processes and are suitable for equipment dealers, distributors, repair workshops and fleet operators.
Compatible with:
Kobelco SK200-3
The exact mounting configuration should be confirmed using the machine serial number or existing carrier roller before ordering.
Manufactured from:
40Mn2 Alloy Steel
Providing:
The roller working surface is subjected to controlled heat treatment.
Typical specification:
This improves resistance against continuous track-chain contact and abrasive working environments.
Equipped with:
The sealed structure helps retain lubricant and protect internal components against dust, mud and water contamination.
Manufactured with controlled:
Designed for bolt-on replacement when the correct configuration is selected.
| Item | Specification / Detail |
|---|---|
| Product Type | Excavator Undercarriage Carrier Roller |
| Machine Model | Kobelco SK200-3 |
| Compatible Models | SK200-3 |
| Machine Type | Crawler Excavator |
| Machine Class | Approx. 20 Ton |
| OEM Part Number | Confirm by machine serial number |
| Material Grade | 40Mn2 Alloy Steel |
| Manufacturing Process | Forging / Casting + CNC Machining |
| Heat Treatment | Induction Hardening |
| Surface Hardness | HRC 52-58 |
| Hardening Depth | 5mm-10mm |
| Seal System | Heavy-duty Floating Oil Seal |
| Lubrication System | Lifetime Internal Lubrication |
| Bearing Structure | Hardened Shaft + Wear-resistant Bushing |
| Quality Inspection | Dimension, Hardness and Sealing Inspection |
| Mounting Configuration | OEM Standard |
| Installation | Bolt-on Direct Replacement |
| Application | Construction / Mining / Earthmoving |
| Shipping Note | Heavy Component — Sea Freight Recommended |
