The Track Roller — also known as Bottom Roller or Lower Roller — is a critical load-bearing component installed under the track frame of Doosan DH220 crawler excavators.
For a 20-ton class excavator, each track roller carries a significant portion of the machine's operating weight. It supports the track chain, guides crawler movement and distributes ground pressure evenly during digging, loading and travelling operations.
During daily operation, the roller is exposed to:
A worn or damaged track roller may result in:
Our DH220 track rollers are manufactured according to OEM-style drawings, providing reliable aftermarket replacement solutions for construction, mining and earthmoving applications.
Designed for:
Suitable for crawler excavator undercarriage replacement applications.
Available configurations:
to match different positions on the track frame.
Manufactured from:
40Mn2 / 50Mn alloy steel
Advantages:
The roller tread surface is induction hardened:
The hardened tread provides improved resistance against:
Equipped with:
Designed to prevent:
Manufactured with:
Provides easy bolt-on installation without modification.
| Item | Specification / Detail |
|---|---|
| Machine Model | Doosan DH220 Excavator |
| Compatible Models | DH220 / DH220LC |
| Brand Reference | Doosan / Daewoo |
| Part Type | Track Roller (Bottom Roller / Lower Roller) |
| OEM Part Number | 2270-1098 / 2270-1098A / 9270-6002 |
| Flange Type | Single Flange (SF) / Double Flange (DF) |
| Material | High-strength 40Mn2 / 50Mn Alloy Steel |
| Manufacturing Method | Forging / Casting / Machining |
| Surface Hardness | HRC 52-58 |
| Hardening Depth | 5mm - 10mm |
| Sealing | Heavy-duty floating oil seal, lifetime lubricated |
| Mounting | OEM standard, bolt-on direct replacement |
| Application | Construction, mining and earthmoving operations |
| Shipping Note | Heavy component — sea freight recommended |
For a 20-ton class excavator like Doosan DH220, undercarriage components represent a major part of machine maintenance costs.
A high-quality track roller helps:
Every roller produced by our factory undergoes strict inspection:
With professional manufacturing capability for excavator undercarriage parts, we provide OEM-compatible replacement solutions with stable quality, competitive pricing and warranty support.
Contact us with your machine model, serial number, OEM part number and roller position to confirm the correct replacement.
The Track Roller — also known as Bottom Roller or Lower Roller — is a critical load-bearing component installed under the track frame of Doosan DH220 crawler excavators.
For a 20-ton class excavator, each track roller carries a significant portion of the machine's operating weight. It supports the track chain, guides crawler movement and distributes ground pressure evenly during digging, loading and travelling operations.
During daily operation, the roller is exposed to:
A worn or damaged track roller may result in:
Our DH220 track rollers are manufactured according to OEM-style drawings, providing reliable aftermarket replacement solutions for construction, mining and earthmoving applications.
Designed for:
Suitable for crawler excavator undercarriage replacement applications.
Available configurations:
to match different positions on the track frame.
Manufactured from:
40Mn2 / 50Mn alloy steel
Advantages:
The roller tread surface is induction hardened:
The hardened tread provides improved resistance against:
Equipped with:
Designed to prevent:
Manufactured with:
Provides easy bolt-on installation without modification.
| Item | Specification / Detail |
|---|---|
| Machine Model | Doosan DH220 Excavator |
| Compatible Models | DH220 / DH220LC |
| Brand Reference | Doosan / Daewoo |
| Part Type | Track Roller (Bottom Roller / Lower Roller) |
| OEM Part Number | 2270-1098 / 2270-1098A / 9270-6002 |
| Flange Type | Single Flange (SF) / Double Flange (DF) |
| Material | High-strength 40Mn2 / 50Mn Alloy Steel |
| Manufacturing Method | Forging / Casting / Machining |
| Surface Hardness | HRC 52-58 |
| Hardening Depth | 5mm - 10mm |
| Sealing | Heavy-duty floating oil seal, lifetime lubricated |
| Mounting | OEM standard, bolt-on direct replacement |
| Application | Construction, mining and earthmoving operations |
| Shipping Note | Heavy component — sea freight recommended |
For a 20-ton class excavator like Doosan DH220, undercarriage components represent a major part of machine maintenance costs.
A high-quality track roller helps:
Every roller produced by our factory undergoes strict inspection:
With professional manufacturing capability for excavator undercarriage parts, we provide OEM-compatible replacement solutions with stable quality, competitive pricing and warranty support.
Contact us with your machine model, serial number, OEM part number and roller position to confirm the correct replacement.
