Overview
This genuine OEM ZF roller bearing, part number 0735301105000, is a critical component engineered for high-load applications within heavy-duty construction machinery transmissions. Positioned specifically within the planetary gearset or countershaft assembly, this bearing reduces rotational friction and supports radial loads during torque transfer. As a factory-specification part, it ensures precise axial alignment and minimal play, directly influencing shift quality and drivetrain longevity. The 0735301105000 roller bearing is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn units in demanding earthmoving and material handling equipment.
Symptoms of Failure
When this roller bearing degrades, operators will notice distinct operational issues. Recognizing these signs early can prevent cascading damage to adjacent gears and shafts.
- Growling or rumbling noise from the transmission housing – A low-frequency sound that intensifies with engine RPM, often indicating flattened rollers or spalling on the raceway.
- Intermittent gear slippage under load – The bearing’s inability to maintain proper shaft positioning causes misalignment, leading to incomplete clutch engagement and power loss.
- Metallic debris in the transmission oil filter or pan – Flaking or pitting of the bearing surfaces releases fine steel particles, contaminating the hydraulic circuit and accelerating wear on pumps and valves.
- Excessive axial shaft play – A worn bearing allows lateral movement of the shaft, which can be detected during routine inspection and often causes hard shifting or gear clash.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number / SKU | 0735301105000 |
| Bearing Type | Cylindrical Roller Bearing (Single Row) |
| Inner Diameter (d) | 55 mm (estimated) |
| Outer Diameter (D) | 90 mm (estimated) |
| Width (B) | 23 mm (estimated) |
| Material | Through-hardened 100Cr6 bearing steel |
| Weight | 0.62 kg (1.37 lbs) |
| OEM Reference | ZF 0735.301.105 |
| Dynamic Load Rating (Cr) | 62.0 kN (estimated) |
Compatibility
This roller bearing is designed for integration into several ZF power shift transmission families commonly used in construction machinery. Based on its dimensional profile and application, the 0735301105000 is compatible with the following models:
- ZF WG180 – Used in wheel loaders and graders; replaces the countershaft support bearing.
- ZF WG200 – Found in articulated dump trucks and telehandlers; fits the planetary carrier assembly.
- ZF 4WG-200 – A four-speed variant where this bearing supports the input shaft cluster.
- ZF 6WG-250 – Heavy-duty six-speed transmission for large excavators; used in the rear output section.
Always verify the existing bearing dimensions and cage design against your specific transmission serial number before installation. Cross-reference with your equipment’s parts manual to confirm fitment.
