The Track Roller, also known as Bottom Roller or Lower Roller, is a critical undercarriage component installed beneath the track frame of Liebherr R944 crawler excavators.
The roller carries a significant portion of the machine operating weight, supports the track chain and maintains correct crawler alignment during travelling and heavy-duty excavation.
For a 40-ton class excavator, track rollers operate under extremely demanding conditions:
A worn or damaged track roller may result in:
Our Liebherr R944 track rollers are manufactured with professional undercarriage production technology, providing reliable aftermarket replacement solutions for mining contractors, equipment dealers and repair workshops.
Manufactured from:
40Mn2 Alloy Steel
Advantages:
The roller tread surface is induction hardened:
Improves resistance against:
Equipped with:
Designed to prevent:
Manufactured with:
Provides direct bolt-on replacement without modification.
| Item | Specification / Detail |
|---|---|
| Product Type | Excavator Undercarriage Track Roller |
| Machine Model | Liebherr R944 Excavator |
| Applicable Machine Weight | Approx. 40 Ton Class |
| Roller Structure | Heavy-duty Steel Body with Precision Machining |
| Material Grade | 40Mn2 Alloy Steel |
| Manufacturing Process | Forging / Casting + CNC Machining |
| Heat Treatment | Induction Hardening |
| Surface Hardness | HRC 52-58 |
| Hardening Depth | 8mm-12mm |
| Seal System | Heavy-duty Floating Oil Seal |
| Lubrication System | Lifetime Internal Lubrication |
| Bearing Structure | Hardened Shaft + Wear-resistant Bushing |
| Quality Inspection | Dimension, Hardness and Sealing Inspection |
| Flange Type | Single Flange (SF) / Double Flange (DF) |
| Installation | OEM Standard, Bolt-on Direct Replacement |
| Shipping Note | Heavy Component — Sea Freight Recommended |
The Track Roller, also known as Bottom Roller or Lower Roller, is a critical undercarriage component installed beneath the track frame of Liebherr R944 crawler excavators.
The roller carries a significant portion of the machine operating weight, supports the track chain and maintains correct crawler alignment during travelling and heavy-duty excavation.
For a 40-ton class excavator, track rollers operate under extremely demanding conditions:
A worn or damaged track roller may result in:
Our Liebherr R944 track rollers are manufactured with professional undercarriage production technology, providing reliable aftermarket replacement solutions for mining contractors, equipment dealers and repair workshops.
Manufactured from:
40Mn2 Alloy Steel
Advantages:
The roller tread surface is induction hardened:
Improves resistance against:
Equipped with:
Designed to prevent:
Manufactured with:
Provides direct bolt-on replacement without modification.
| Item | Specification / Detail |
|---|---|
| Product Type | Excavator Undercarriage Track Roller |
| Machine Model | Liebherr R944 Excavator |
| Applicable Machine Weight | Approx. 40 Ton Class |
| Roller Structure | Heavy-duty Steel Body with Precision Machining |
| Material Grade | 40Mn2 Alloy Steel |
| Manufacturing Process | Forging / Casting + CNC Machining |
| Heat Treatment | Induction Hardening |
| Surface Hardness | HRC 52-58 |
| Hardening Depth | 8mm-12mm |
| Seal System | Heavy-duty Floating Oil Seal |
| Lubrication System | Lifetime Internal Lubrication |
| Bearing Structure | Hardened Shaft + Wear-resistant Bushing |
| Quality Inspection | Dimension, Hardness and Sealing Inspection |
| Flange Type | Single Flange (SF) / Double Flange (DF) |
| Installation | OEM Standard, Bolt-on Direct Replacement |
| Shipping Note | Heavy Component — Sea Freight Recommended |
