Parts for your 2020 Nissan Serena-Thrust bearing

Thrust Bearing and Its Role in the 2020 Nissan Serena

When it comes to the 2020 Nissan Serena, the topic of thrust bearings might not come up often, and that's because this particular vehicle does not typically use a dedicated thrust bearing in its drivetrain or engine assembly. Thrust bearings are specialised components designed primarily to absorb axial loads - forces pushing along the shaft's length rather than radially - and they are common in certain types of machinery and vehicles with specific engine or transmission layouts. However, the engineering and design of the Serena mean that thrust bearings are not part of its standard components.

The 2020 Nissan Serena, a popular multi-purpose vehicle in Australia, features a front-wheel-drive layout paired with either a petrol engine or a mild hybrid system. Its engine, typically the 2.0-litre MR20DD petrol inline-four, along with an Xtronic CVT (continuously variable transmission), is designed to operate efficiently without requiring a dedicated thrust bearing. Instead, this drivetrain setup relies on standard roller or ball bearings within the transmission and engine assemblies that handle the loads with integrated design features. These bearings manage both radial and axial forces through their construction, meaning an additional thrust bearing is not necessary.

In petrol engines like the one in the Nissan Serena, axial loads on crankshafts or camshafts are generally managed by standard crankshaft thrust washers rather than separate thrust bearings. Thrust washers are simpler parts placed between rotating and stationary components, preventing endplay (longitudinal movement) of the shaft, which essentially achieves the same end as a thrust bearing but with less complexity and cost. This means the Serena's engine and transmission designs take care of axial forces internally using these washers and suitably designed bearings.

So, why is a dedicated thrust bearing not needed in the 2020 Nissan Serena? The answer lies in the vehicle's mechanical design philosophies. Modern engines and transmissions tend to minimise the need for specialised components by integrating versatile bearing designs. The CVT transmission in the Serena is designed to be compact and smooth, reducing wear and tear on components that might otherwise require extra protection from thrust bearings. Moreover, the axial forces generated during normal driving conditions simply do not reach a level that requires a dedicated thrust bearing component.

For enthusiasts or those interested in servicing a 2020 Nissan Serena, it's worth noting that standard maintenance procedures focus on the upkeep of the CVT transmission, engine oil changes, and other common vehicle care tasks rather than inspecting or replacing thrust bearings. Bearings within the transmission or engine are typically maintenance-free during the expected life of the vehicle, unless there is a specific fault or wear identified by a mechanic. The thrust washers mentioned earlier are not usually replaced separately but inspected during major engine overhauls if needed.

Replacing or maintaining thrust bearings is a specialised job typically reserved for vehicles or machinery where these components play a critical role. Since the Nissan Serena does not include thrust bearings as standalone parts, owners and mechanics focus maintenance efforts on adhering to regular services such as oil changes, transmission fluid replacements, and timely inspections of the CVT system to ensure smooth operation and longevity.

In cases where unusual noises or vibrations are detected in the transmission or engine area, it is more common that standard bearings, CVT belts, or other components within the drivetrain may require assessment rather than thrust bearings. Professional diagnostic tools and experience are key to isolating issues, and for the Serena, this means focusing on the known service points rather than searching for a thrust bearing problem that is unlikely to exist.

So if you're driving a 2020 Nissan Serena or helping someone maintain one, it's great to know that the mechanical design is quite streamlined and does not rely on thrust bearings as separate, replaceable parts. Instead, keeping up with general maintenance schedules and consulting with a Nissan specialist for transmission or engine issues will keep your Serena running smoothly for years to come.