The Track Roller — also known as Bottom Roller or Lower Roller — is an important undercarriage component installed beneath the track frame of Kobelco SK55 crawler excavators.
The bottom roller supports the excavator weight, maintains track chain alignment and ensures smooth crawler movement during travelling and excavation operations.
For compact excavators operating in:
the track roller is exposed to:
A worn or damaged track roller may cause:
Our Kobelco SK55 track rollers are manufactured according to OEM-style drawings, providing reliable aftermarket replacement solutions for mini excavator users and equipment dealers.
Designed for:
Reference OEM numbers:
Although installed on compact excavators, the roller features:
Suitable for:
Manufactured from:
40Mn2 / 50Mn Alloy Steel
Advantages:
The roller tread surface is hardened:
Improves resistance against:
Equipped with:
Designed to prevent:
Manufactured with:
Provides direct bolt-on replacement without modification.
| Item | Specification / Detail |
|---|---|
| Machine Model | Kobelco SK55 Excavator |
| Compatible Models | SK55 / SK55SR / SK55SRX / SK55SR-6 |
| Machine Class | 5-6 Ton Mini Excavator |
| Part Type | Track Roller (Bottom Roller / Lower Roller) |
| OEM Part Number | 72951433 / PW64D00010F0 / PW64D00010F1 / PW64D00010F2 |
| Flange Type | Single Flange (SF) |
| Material | High-strength 40Mn2 / 50Mn Alloy Steel |
| Manufacturing Method | Forging / Casting / Machining |
| Surface Hardness | HRC 50-58 |
| Hardening Depth | 4mm - 8mm |
| Sealing | Floating oil seal, lifetime lubricated |
| Mounting | OEM standard, bolt-on direct replacement |
| Application | Mini excavator, construction and landscaping |
| Shipping Note | Small component — suitable for air or sea freight |
For mini excavators like Kobelco SK55, reliable undercarriage parts are essential for maintaining machine stability and reducing operating costs.
A 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 an important undercarriage component installed beneath the track frame of Kobelco SK55 crawler excavators.
The bottom roller supports the excavator weight, maintains track chain alignment and ensures smooth crawler movement during travelling and excavation operations.
For compact excavators operating in:
the track roller is exposed to:
A worn or damaged track roller may cause:
Our Kobelco SK55 track rollers are manufactured according to OEM-style drawings, providing reliable aftermarket replacement solutions for mini excavator users and equipment dealers.
Designed for:
Reference OEM numbers:
Although installed on compact excavators, the roller features:
Suitable for:
Manufactured from:
40Mn2 / 50Mn Alloy Steel
Advantages:
The roller tread surface is hardened:
Improves resistance against:
Equipped with:
Designed to prevent:
Manufactured with:
Provides direct bolt-on replacement without modification.
| Item | Specification / Detail |
|---|---|
| Machine Model | Kobelco SK55 Excavator |
| Compatible Models | SK55 / SK55SR / SK55SRX / SK55SR-6 |
| Machine Class | 5-6 Ton Mini Excavator |
| Part Type | Track Roller (Bottom Roller / Lower Roller) |
| OEM Part Number | 72951433 / PW64D00010F0 / PW64D00010F1 / PW64D00010F2 |
| Flange Type | Single Flange (SF) |
| Material | High-strength 40Mn2 / 50Mn Alloy Steel |
| Manufacturing Method | Forging / Casting / Machining |
| Surface Hardness | HRC 50-58 |
| Hardening Depth | 4mm - 8mm |
| Sealing | Floating oil seal, lifetime lubricated |
| Mounting | OEM standard, bolt-on direct replacement |
| Application | Mini excavator, construction and landscaping |
| Shipping Note | Small component — suitable for air or sea freight |
For mini excavators like Kobelco SK55, reliable undercarriage parts are essential for maintaining machine stability and reducing operating costs.
A 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.
