The Track Roller — also known as Bottom Roller or Lower Roller — is a critical load-bearing component installed beneath the track frame of Caterpillar CAT E325 crawler excavators.
The bottom roller carries a significant portion of the excavator's operating weight, supports the track chain and maintains smooth crawler movement during excavation, loading and travelling operations.
During heavy-duty operation, track rollers are exposed to:
A worn or damaged track roller may cause:
Our CAT E325 track rollers are manufactured according to OEM-style drawings, providing a reliable aftermarket replacement solution for construction, mining and earthmoving applications.
Designed for:
Reference OEM numbers:
Available configurations:
Suitable for different positions on the track frame.
Manufactured from:
40Mn2 / 50Mn 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 installation without modification.
| Item | Specification / Detail |
|---|---|
| Machine Model | Caterpillar CAT E325 Excavator |
| Compatible Models | E325 / E325B / 325 Series |
| Part Type | Track Roller (Bottom Roller / Lower Roller) |
| OEM Part Number | 117-5046 / 6Y-1057 / Confirm by serial number |
| 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 25-ton class excavator like CAT E325, undercarriage components represent a major maintenance cost throughout the machine lifecycle.
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 critical load-bearing component installed beneath the track frame of Caterpillar CAT E325 crawler excavators.
The bottom roller carries a significant portion of the excavator's operating weight, supports the track chain and maintains smooth crawler movement during excavation, loading and travelling operations.
During heavy-duty operation, track rollers are exposed to:
A worn or damaged track roller may cause:
Our CAT E325 track rollers are manufactured according to OEM-style drawings, providing a reliable aftermarket replacement solution for construction, mining and earthmoving applications.
Designed for:
Reference OEM numbers:
Available configurations:
Suitable for different positions on the track frame.
Manufactured from:
40Mn2 / 50Mn 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 installation without modification.
| Item | Specification / Detail |
|---|---|
| Machine Model | Caterpillar CAT E325 Excavator |
| Compatible Models | E325 / E325B / 325 Series |
| Part Type | Track Roller (Bottom Roller / Lower Roller) |
| OEM Part Number | 117-5046 / 6Y-1057 / Confirm by serial number |
| 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 25-ton class excavator like CAT E325, undercarriage components represent a major maintenance cost throughout the machine lifecycle.
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.
