The Track Roller — also known as Bottom Roller or Lower Roller — is a key load-bearing component installed under the track frame of Komatsu PC200 crawler excavators.
For a 20-ton class excavator, track rollers continuously carry the machine's operating weight and transfer ground pressure through the crawler system. They guide the track chain, reduce vibration and maintain smooth travel performance.
During excavation and construction operations, the roller is exposed to:
A worn or damaged track roller may cause:
Our Komatsu PC200 track rollers are manufactured according to OEM-style drawings, providing a reliable aftermarket replacement solution for construction, mining and earthmoving applications.
Designed for Komatsu PC200 crawler excavators, including:
Available configurations:
Suitable for different installation positions on the track frame.
Manufactured from:
40Mn2 / 50Mn alloy steel
Features:
The roller tread surface is induction hardened:
This improves resistance against wear caused by rocks, gravel and abrasive soil.
Equipped with:
Designed to prevent:
Manufactured with:
Designed for easy bolt-on replacement without modification.
| Item | Specification / Detail |
|---|---|
| Machine Model | Komatsu PC200 Excavator |
| Compatible Models | PC200 / PC200LC / PC200-5 / PC200-6 / PC200-7 / PC200-8 |
| Part Type | Track Roller (Bottom Roller / Lower Roller) |
| OEM Part Number | Confirm by machine serial number |
| Reference OEM Number | 20Y-30 series / 207-30 series (depending on model) |
| 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 Komatsu PC200, undercarriage components represent one of the largest maintenance expenses during machine operation.
A reliable 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 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 load-bearing component installed under the track frame of Komatsu PC200 crawler excavators.
For a 20-ton class excavator, track rollers continuously carry the machine's operating weight and transfer ground pressure through the crawler system. They guide the track chain, reduce vibration and maintain smooth travel performance.
During excavation and construction operations, the roller is exposed to:
A worn or damaged track roller may cause:
Our Komatsu PC200 track rollers are manufactured according to OEM-style drawings, providing a reliable aftermarket replacement solution for construction, mining and earthmoving applications.
Designed for Komatsu PC200 crawler excavators, including:
Available configurations:
Suitable for different installation positions on the track frame.
Manufactured from:
40Mn2 / 50Mn alloy steel
Features:
The roller tread surface is induction hardened:
This improves resistance against wear caused by rocks, gravel and abrasive soil.
Equipped with:
Designed to prevent:
Manufactured with:
Designed for easy bolt-on replacement without modification.
| Item | Specification / Detail |
|---|---|
| Machine Model | Komatsu PC200 Excavator |
| Compatible Models | PC200 / PC200LC / PC200-5 / PC200-6 / PC200-7 / PC200-8 |
| Part Type | Track Roller (Bottom Roller / Lower Roller) |
| OEM Part Number | Confirm by machine serial number |
| Reference OEM Number | 20Y-30 series / 207-30 series (depending on model) |
| 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 Komatsu PC200, undercarriage components represent one of the largest maintenance expenses during machine operation.
A reliable 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 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.
