Overview
The ZF 0750.119.108 CYLINDER ROLLER is a precision-engineered OEM genuine component designed to reduce rotational friction within the planetary gear sets of heavy-duty construction machinery transmissions. This needle-style roller bearing sits directly between the sun gear and planetary carrier, ensuring smooth torque transfer under extreme loads. The SKU 0750.119.108 is a critical wear item that maintains proper gear alignment and load distribution inside the main gearbox housing. When installed alongside the 4108101128: TRANSMISSION HOUSING and the 4108201296: HOUSING, this roller supports the entire rotating assembly, preventing metal-on-metal contact that leads to premature transmission failure.
Symptoms of Failure
- Whining or grinding noise during gear engagement – A worn 0750.119.108 cylinder roller creates a high-pitched metallic whine, especially when shifting from neutral to drive under load. This noise indicates the roller surface has flattened or spalled.
- Intermittent gear slipping under heavy load – When the roller loses its cylindrical integrity, the planetary gears can momentarily lose mesh, causing the machine to hesitate or slip when climbing grades or digging.
- Metallic debris in transmission oil – Flaking or pitting of the roller surface sheds fine steel particles into the lubricant. Checking the 0501215601: OIL LEVEL GAGE may reveal glitter-like contamination.
- Increased operating temperature – Excessive friction from a degraded roller generates heat, often detectable through the 4475280018: SCREW PLUG area on the housing, which may feel abnormally hot after short operation.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0750.119.108 |
| Type | Cylindrical Roller Bearing (Needle) |
| Outer Diameter | 38 mm (estimated) |
| Inner Diameter | 28 mm (estimated) |
| Length | 22 mm (estimated) |
| Material | Case-hardened 52100 bearing steel |
| Weight | 0.085 kg (approx.) |
| OEM Reference | ZF 0750.119.108 |
| Hardness | 60-64 HRC |
Compatibility
This cylinder roller is engineered for ZF heavy-duty powershift transmissions commonly used in wheel loaders, dozers, and graders. Based on its roller geometry and load rating, the 0750.119.108 is compatible with the following ZF transmission models: WG180, WG200, WG210, and WG310. It is also found in select 4WG-200 and 5WG-210 variants. Always verify fitment by cross-referencing the part number with your transmission serial plate, which is often secured by a 0730365280: TYPE PLATE.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101128 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4108201296 | HOUSING | Secondary housing for planetary carrier |
| 4475280018 | SCREW PLUG | Seals oil passages in the housing |
| 0501215601 | OIL LEVEL GAGE | Dipstick for checking transmission fluid |
| 4108303034 | COVER | Protects internal components from debris |
| 0636015120 | HEXAGON SCREW | Fastens covers and housings |
| 0636302015 | SCREW PLUG | Drain or fill port plug |
| 0501325471 | SEALING RING | Prevents oil leaks at joints |
| 0730365280 | TYPE PLATE | Identification plate for transmission model |
| 4108108026 | INTERM.GEARBOX | Intermediate gearbox assembly |
