The Track Roller — also known as Bottom Roller or Lower Roller — is a key undercarriage component installed beneath the track frame of Hyundai R220 crawler excavators.
The bottom roller carries the machine weight, supports the track chain and ensures smooth crawler movement during digging, travelling and construction operations.
For a 20-ton class excavator, the track roller operates under continuous working loads and is exposed to:
A worn or damaged track roller may result in:
Our Hyundai R220 track rollers are manufactured according to OEM-style drawings and production standards, providing reliable aftermarket replacement solutions for construction and earthmoving applications.
Designed for:
Reference OEM numbers:
Available configurations:
Suitable for different positions on the track frame.
Manufactured from:
40Mn2 Alloy Steel
Advantages:
The roller tread surface is induction hardened:
Provides excellent resistance against:
Equipped with:
Designed to prevent:
Manufactured with:
Provides direct bolt-on replacement without modification.
| Item | Specification / Detail |
|---|---|
| Machine Model | Hyundai R220 Excavator |
| Compatible Models | R220 / R220LC-7 / R220LC-9 / R220-9S |
| Machine Class | 20 Ton Excavator |
| Part Type | Track Roller (Bottom Roller / Lower Roller) |
| OEM Part Number | 81N611010 / 81Q611011 / 81N811051G9 |
| Flange Type | Single Flange (SF) / Double Flange (DF) |
| Material | High-strength 40Mn2 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, earthmoving and excavation operations |
| Shipping Note | Heavy component — sea freight recommended |
For a 20-ton class excavator like Hyundai R220, undercarriage components are among the most frequently replaced wear parts.
A high-quality track roller helps:
Every roller produced by our factory undergoes strict quality 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 key undercarriage component installed beneath the track frame of Hyundai R220 crawler excavators.
The bottom roller carries the machine weight, supports the track chain and ensures smooth crawler movement during digging, travelling and construction operations.
For a 20-ton class excavator, the track roller operates under continuous working loads and is exposed to:
A worn or damaged track roller may result in:
Our Hyundai R220 track rollers are manufactured according to OEM-style drawings and production standards, providing reliable aftermarket replacement solutions for construction and earthmoving applications.
Designed for:
Reference OEM numbers:
Available configurations:
Suitable for different positions on the track frame.
Manufactured from:
40Mn2 Alloy Steel
Advantages:
The roller tread surface is induction hardened:
Provides excellent resistance against:
Equipped with:
Designed to prevent:
Manufactured with:
Provides direct bolt-on replacement without modification.
| Item | Specification / Detail |
|---|---|
| Machine Model | Hyundai R220 Excavator |
| Compatible Models | R220 / R220LC-7 / R220LC-9 / R220-9S |
| Machine Class | 20 Ton Excavator |
| Part Type | Track Roller (Bottom Roller / Lower Roller) |
| OEM Part Number | 81N611010 / 81Q611011 / 81N811051G9 |
| Flange Type | Single Flange (SF) / Double Flange (DF) |
| Material | High-strength 40Mn2 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, earthmoving and excavation operations |
| Shipping Note | Heavy component — sea freight recommended |
For a 20-ton class excavator like Hyundai R220, undercarriage components are among the most frequently replaced wear parts.
A high-quality track roller helps:
Every roller produced by our factory undergoes strict quality 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.
