Rear wheel bearing on Nissan Note is one of those components that are often ignored by the driver until an obvious hum or play appears. Many owners believe that the rear suspension is less loaded, but operation on Russian roads, especially in winter, when reagents corrode the protection and get into the mechanisms, reduces the service life of the part by half. If you hear a growing hum that changes with speed, this is where the problem lies.
Timely diagnosis and replacement hubs or the bearing itself will avoid more serious consequences, such as wheel jamming while driving or destruction of the steering knuckle. In the article we will analyze in detail the design of the unit, features of removal and installation on Nissan Note, and also discuss when it is better to replace the entire part, and when - only the internal part.
Diagnosis of faults and signs of wear
Determine what wheel bearing has become unusable, based on several characteristic signs that are difficult to confuse with other malfunctions of the chassis. The surest symptom is a low-frequency hum or rumble, which becomes louder when accelerating and changes tone when the car turns.
When driving in a straight line, the sound may be barely noticeable, but as soon as you turn the steering wheel a little, the load is redistributed and the hum intensifies or, conversely, disappears. If the noise increases when turning left, it means that the right bearing is under load, and vice versa.
- 🔊 The appearance of a hum or howl, depending on the speed of rotation of the wheel.
- 🎠 Feeling of vibration on the body or steering wheel when driving.
- ⚙️ Wheel play when rocking it with your hands (removing the wheel).
This sound should not be confused with tire hum or a brake malfunction. If the sound changes when you press the brake pedal, there may be a problem with the brake rotor, but more often than not, the noise remains constant, regardless of how the brakes are working.
A visual inspection may also reveal the problem. Inspect brake disc and the inside of the wheel for traces of lubricant leaks. If you see greasy spots on the inside of the disc or on the brake pads, this is a sure sign of the separator being damaged and lubricant leaking from bearing.
Design features of the unit on Nissan Note
Rear hub design Nissan Note the first and second generations have their own nuances that are important to consider before starting work. In most cases, this vehicle uses a one-piece hub assembly that is pressed into the steering knuckle. This greatly simplifies diagnosis, but complicates repairs.
It is important to understand that the bearing cannot be changed separately from the hub without special equipment. If you try to knock out the old bearing and press in a new one without a press, you are guaranteed to damage the new element or knuckle, which will lead to the need to replace the entire steering axle.
- 🔩 The hub assembly is often supplied complete with an ABS sensor.
- 🛠️ Attaching to the knuckle is carried out with bolts from the rear wheel.
- ⚙️ The inner part of the bearing is pressed into the hub.
On some modifications Nissan Note (especially with all-wheel drive or a specific suspension), the design may differ, but the operating principle remains similar. Sensor ABS integrated into the bearing housing, so when purchasing a new part, make sure that there is a connector for the sensor and that its wiring is in good condition.
If the ABS sensor fails and the bearing is in good condition, theoretically it is possible to replace only the sensor, but in practice this is rarely done due to the difficulty of access and the risk of damaging the seal. Most often, the entire assembly is replaced to avoid repeated visits to the service station.
⚠️ Attention! Never try to hammer an old bearing through a spacer unless you have experience and a hydraulic press. This almost always leads to deformation of the seat in the steering knuckle, which makes installation of a new unit impossible.
Selection of spare parts and manufacturers
When choosing rear wheel bearing on Nissan Note It is important to focus not only on price, but also on the reputation of the manufacturer. Original Nissan parts are expensive, but provide maximum service life. However, there are high-quality analogues that are not inferior to the original in terms of characteristics.
Among the trusted brands it is worth highlighting Koyo, NSK, SKF and FAG. These companies are the primary suppliers for many Japanese automakers, so their products are often identical to the original ones, but at a lower price. Avoid cheap Chinese analogues of unknown brands, as their service life may not exceed 10-15 thousand kilometers.
- 🏆 Koyo and NSK are the best Japanese analogues, often coming in original packaging.
- 🌍 SKF and FAG are reliable European brands with excellent geometry.
- 🚫 Avoid brands with questionable reviews and too low prices.
Be sure to check the part number before purchasing. On Nissan Note (especially restyled versions) there may be different types of suspension, and the hubs may differ in the diameter of the seats or the length of the thread of the mounting bolts.
If you buy a complete hub, make sure it is complete: with an ABS sensor, retaining rings and the necessary bolts. Cheap options are sometimes sold without the sensor, forcing you to search for it separately and waste time finding a compatible part.
- Original Nissan
- Japanese brands (Koyo/NSK)
- European brands (SKF/FAG)
- Cheap analogues
Tools and preparation for replacement
To successfully replace a rear wheel bearing, you will need a tool kit that includes both standard wrenches and specialized tools. Without press or a powerful hydraulic jack with adapters, the work will be extremely difficult.
You will need: a set of sockets (including a 19 and 30 socket), a torque wrench, a pry bar, a hammer, penetrating lubricant (WD-40) and, most importantly, a device for pressing out and pressing the bearing. If you don't have a press, consider renting or using special pullers.
☑️ Preparing to replace the wheel bearing
Before starting work, the vehicle must be securely secured. Drive Nissan Note on a level surface, apply the handbrake and place wheel chocks under the front wheels. If you are working on the rear axle, the rear wheels must be jacked up, but be sure to place the rear of the car on secure supports (goats).
Be sure to clean the work area from dirt. Use a brush and brake cleaner to remove residue from the hub and brake rotor bolts. Dirt can get inside the bearing when it is replaced, which will shorten its life.
What to do if the bolts are stuck?
If the hub bolts do not come off, do not use excessive force immediately. Spray them generously with penetrating lubricant and leave for 15-20 minutes. Try gently tapping the bolt head with a hammer to break up the rust. As a last resort, use a hair dryer, but not a gas torch, so as not to damage the brake hose.
Remove the wheel and brake caliper. It must be hung on a wire so as not to damage the brake hose. Then remove the brake disc. If the disc is stuck to the hub, you can gently tap it around the perimeter or use a puller.
Having a hydraulic press or special puller is critical to replacing the bearing without risking damage to the steering knuckle.
Step-by-step instructions for replacing the unit
The replacement process begins with dismantling the old unit. Remove the bolts holding the hub to the steering knuckle (usually there are four). If they don't budge, use penetrating lubricant and an impact driver. After unscrewing the bolts, carefully knock out the hub from the inside out, using a wooden spacer so as not to damage the threads.
Now you need to press the old bearing out of the steering knuckle. This is done using a press. Place the fist on the supports and push the bearing towards the wheel through a special mandrel. Be careful: the bearing may crumble inside, so use a magnet or feeler gauge to remove any debris.
- 🔧 Unscrew the bolts securing the hub to the knuckle.
- 🔨 Knock the hub out of its seat.
- ⚙️ Press the bearing out of the fist using a press.
Before installing a new bearing, thoroughly clean the seat in the knuckle. Make sure there are no burrs or corrosion. The new bearing is pressed strictly along the outer ring. If you put pressure on the inner ring, you will damage the separator, and the unit will fail within the first few kilometers.
After pressing the bearing, install the new hub. Insert it inside the bearing and press it in until it stops, also pressing only on the inner ring. Make sure that the hub is seated tightly and has no play. Secure it with bolts, tightening them to the recommended torque.
Before pressing in a new bearing, lightly lubricate the seat in the knuckle with a thin layer of lithol or graphite grease - this will make the process easier and prevent future corrosion.
Reassemble the assembly in reverse order: install the brake disc, put on the caliper, tighten the guides. Don't forget to connect the ABS sensor connector and check its integrity. Install the wheel and lower the car to the ground.
⚠️ Attention! After assembly, be sure to check the operation of the ABS sensor using a diagnostic scanner. If the ABS light is on, you may have damaged the wiring or the sensor may not be fully seated.
Torque table and specifications
For proper repairs, it is important to observe the tightening torques of the bolts. Under-tightened bolts can fall off, and over-tightened bolts can strip the threads. Below is a table with basic values for Nissan Note.
| element | Tightening torque (Nm) | Note |
|---|---|---|
| Wheel bolts | 108-127 | Depends on disk size |
| Bolts securing the hub to the knuckle | 100-110 | Use a torque wrench |
| Hub nut (if equipped) | 180-200 | For front wheel drive, rear wheel drive is often without nut |
| Caliper bracket | 30-40 | Check the condition of the guides |
| ABS sensor mount | 8-10 | Fragile element, do not overtighten |
Compliance with these values is critical to safety. If you don't have a torque wrench, it's better not to take risks and contact a professional. Errors in tightening can lead to the destruction of the unit while running.
Also pay attention to the condition of the brake pads and discs. While the wheels are removed, it makes sense to check their wear. If you are replacing a hub due to noise, the brake rotors may already be worn out and need replacing, which will save time in the future.
Frequent errors and operating nuances
One of the most common mistakes is trying to replace the bearing without replacing the ABS sensor. Sensors often have fragile contacts and can be damaged during dismantling. If you notice that the sensor wiring is damaged or the sensor itself has play, replace it along with the hub.
Another mistake is using a hammer to knock out the bearing. This leads to deformation of the fist body. Even microscopic deformation will make it impossible to seal a new bearing, and it will quickly fail.
- ❌ Do not use a hammer to press out the bearing.
- ❌ Do not ignore the condition of the ABS sensor when replacing.
- ❌ Do not tighten bolts by eye without a torque wrench.
After replacing the hub, it is recommended to perform a wheel alignment, especially if you removed the arms or changed suspension elements. This will ensure even tire wear and stable vehicle behavior on the road.
If you notice that the noise remains after the replacement, check other suspension elements: shock absorbers, levers, silent blocks. Sometimes the noise can come from a warped disc or worn suspension rubber, rather than from a bearing.
Is it possible to drive with a faulty bearing?
You can drive with a faulty bearing, but only for short distances and at low speeds. The risk of a wheel seizing increases with every thousand kilometers. In the worst case scenario, the wheel could come off or seize, causing you to lose control.
⚠️ Attention! If you feel strong vibrations or hear grinding noises while driving, stop immediately and call a tow truck. Continuing movement can lead to complete destruction of the unit and an accident.
Regular inspection of the suspension and timely replacement of worn parts will extend the life of your car. Don't wait for the hub to jam - prevention is always cheaper and safer than repairing it after a breakdown.
FAQ: Frequently asked questions
How long does it take to replace a rear wheel bearing on a Nissan Note?
If you have experience and the necessary equipment (press), replacing one unit takes about 1-1.5 hours. If you are doing this for the first time and using improvised means, the process may take up to 3-4 hours.
Is it possible to replace only the bearing and not the hub assembly?
Theoretically it is possible, but this requires abs and high qualifications. In practice, it is more profitable and reliable to change the hub assembly, since this eliminates the risk of errors during pressing and guarantees the tightness of the assembly.
Do I need to do a wheel alignment after replacement?
If you did not remove the suspension arms and did not violate the suspension geometry, it is not necessary to do a wheel alignment. However, if after replacement you feel that the car is pulling to the side, it is recommended to carry out diagnostics and adjustments.
What is the service life of a high-quality rear wheel bearing?
A high-quality bearing from trusted brands (Koyo, NSK, SKF), with proper installation and operation, can last from 80 to 150 thousand kilometers. In bad road conditions, the resource can be reduced to 50-60 thousand kilometers.
Why does the hub hum after replacement?
There may be several reasons: a defect in a new part, incorrect pressing (pressure on the inner ring), damage to the ABS sensor, or the presence of play in the steering knuckle. Check all stages of installation and the quality of components.