Parts for your 2017 Toyota Rav4-Centre bearing

Centre Bearing on the 2017 Toyota RAV4: Is It Used and What You Should Know

When diving into the details of the 2017 Toyota RAV4's drivetrain, it's important to clarify whether a centre bearing is part of the design. For those unfamiliar, a centre bearing typically supports a two-piece driveshaft by holding it securely in place and allowing for smooth rotation. This is common in vehicles with longer driveshafts, especially in rear-wheel or four-wheel drive setups where the driveline length requires additional support.

After referencing official Toyota technical documentation and trusted automotive resources, it becomes clear that the 2017 Toyota RAV4 does not use a centre bearing in its drivetrain. The RAV4's front-wheel-drive versions and all-wheel-drive versions feature a relatively simple drivetrain layout that does not require a two-piece driveshaft setup. Instead, the RAV4's power is transmitted through constant velocity (CV) joints and half shafts directly from the transaxle to the wheels without the need for a centre support bearing.

Why does the 2017 RAV4 not need a centre bearing? The main reason is the vehicle's front-wheel-drive-based platform. Vehicles with front-wheel drive, or those with compact all-wheel-drive systems like the RAV4, generally use single-piece half shafts running from the transmission or transfer case out to each wheel. These shafts are short enough and robust enough that they do not require additional support in the middle, unlike longer driveshafts used in traditional rear-wheel or four-wheel-drive systems.

Additionally, the 2017 RAV4's AWD system is a part-time electronically controlled setup that directs torque to the rear wheels when needed, but does so through short drive shafts and multi-link rear suspension arms without a long prop shaft running the length of the car. This setup eliminates the need for a centre bearing altogether.

Because of this, there's no centre bearing to inspect, replace, or maintain on the 2017 Toyota RAV4. Instead, focus should be on other drivetrain components such as the CV joints, half shafts, and differential fluids, which play a crucial role in drivetrain performance and longevity.

However, understanding what a centre bearing does in vehicles that do have them can be useful for general automotive knowledge or if you own a different vehicle. The centre bearing serves several important purposes. It supports the two-piece drive shaft, preventing the shaft from flexing excessively, which reduces vibration and stress on the drivetrain components. By doing that, the centre bearing helps maintain drivetrain stability and smooth power delivery.

When a centre bearing starts to fail, drivers might notice vibrations, unusual noises, or a wobble in the driveshaft. Ignoring these symptoms can lead to more significant problems including damage to the universal joints, gearbox wear, or even complete driveshaft failure. That's why regular inspection is key in vehicles equipped with centre bearings.

If your vehicle does have a centre bearing, it is generally replaced as a single unit which includes the bearing itself and the mounting bracket. Servicing a centre bearing can be straightforward for experienced mechanics but might require special tools to remove and install the driveshaft sections safely. Regular greasing is not always needed since many centre bearings are sealed units, but checking for play and noise during routine servicing remains important.

On the 2017 Toyota RAV4 - since it does not have one - resources and servicing tasks should be focused on other key components like the CV joints, which include boot inspections for cracks or leaks, and ensuring the quality and level of any differential or transmission fluids. Those are the parts that keep your AWD system functioning smoothly and your rides comfortable and reliable.