Overview
The ZF 0750.119.976 ROLLER SET is a precision-engineered OEM genuine component designed for the planetary gear assemblies within heavy-duty ZF transmissions. This roller set functions as a critical load-bearing element, reducing friction between rotating shafts and stationary housings in construction machinery drivelines. Specifically, it supports the planet gears inside the transmission’s planetary carrier, ensuring smooth torque transfer under extreme loads. The SKU 0750.119.976 is manufactured to ZF’s exacting tolerances, guaranteeing a direct fit and long service life. When replacing this roller set, it is common practice to also inspect the 4108101174: HOUSING for wear, as housing distortion can accelerate roller failure.
Symptoms of Failure
- Transmission gear slipping under load – Worn rollers in the 0750.119.976 set allow planet gears to shift, causing intermittent power loss during excavation or lifting operations.
- Metallic grinding noise from the transmission housing – As the roller surface degrades, metal-on-metal contact produces a distinct grinding sound, especially at low RPM.
- Oil contamination with metallic particles – Flaking roller material enters the lubrication system, often visible as glitter in the oil when checked via the 0501225852: OIL LEVEL GAGE.
- Overheating in the planetary section – Increased friction from a failing roller set generates excess heat, which may trigger thermal warnings on the equipment dashboard.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0750.119.976 |
| Type | Roller Set (Needle Roller Assembly) |
| Material | Case-hardened bearing steel (DIN 1.3505) |
| Outer Diameter | 52.0 mm |
| Inner Diameter | 42.0 mm |
| Width | 22.5 mm |
| Weight | 0.18 kg |
| OEM Reference | ZF 0750.119.976 |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This roller set is primarily used in ZF WG180, WG200, and WG210 series transmissions found in wheel loaders, excavators, and telehandlers. It also fits select models of the ZF 4WG-200 and 6WG-200 power shift transmissions. For accurate fitment, always cross-reference your transmission serial number with the 0730365308: TYPE PLATE specifications. When servicing, ensure the 4108201298: HOUSING is free of pitting, and replace the 0501325471: SEALING RING to prevent oil bypass.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101174 | HOUSING | Encloses the planetary gear set |
| 4108201298 | HOUSING | Rear transmission housing |
| 0501225852 | OIL LEVEL GAGE | Monitors lubricant level |
| 0501325471 | SEALING RING | Prevents oil leakage at shaft |
| 0730365308 | TYPE PLATE | Identifies transmission model |
| 4108301475 | INPUT SHAFT | Transfers engine torque to transmission |
| 0750116982 | BALL BEARING | Supports rotating shafts |
| 0630502039 | RETAINING RING | Secures bearings in bore |
| 0630531064 | RETAINING RING | External snap ring for shaft |
| 0636302014 | SCREW PLUG | Seals oil drain/fill ports |
