Understanding & Achieving Longer Bearing Life - bearing life calculation
If you hear a clicking sound that increases in frequency as the vehicle accelerates, there could be a problem with the wheel hub assembly.
The cost to replace one front-wheel hub assembly varies widely. Among the variables are the vehicle brand and model, the garage’s labor rate, and the cost of parts. The average out-the-door wheel bearing replacement cost without taxes is about $350 per wheel.
Badwheelbearing symptoms
A common reason for a cambelt failing or snapping is the deterioration of the auxiliary belt. If this belt starts to shred, fibres from it can become trapped under the cambelt, as they both run from the crankshaft. If this happens, the cambelt can start to jump or become detached altogether.
Timing chains are also located inside the engine, where they’re lubricated by engine oil, as opposed to cambelts, which sit outside the engine. Some cars now use so-called wet-belts made from composites, which run inside the engine and are lubricated by oil.
Timing chains usually last longer than belts as they’re made of metal, although wet belts tend to last longer than dry belts, which can dry and fracture over time.
You should always check out odd noises from your engine, of course. If you notice a rubbing, rasping sound from the engine, specifically the belt cover area, then you may well need to replace your cambelt. Turn off the engine and head to AutoAdvisor to find a trustworthy local mechanic.
Your cambelt is designed to be replaced, as it can’t work forever, which is why your manufacturer will have a recommended changing schedule. Cambelts can be hard to reach, so it’s always best to have a trained mechanic do the work. Checking over your cambelt should also be part of your annual or interim service, too.
Technicians can check for wheel wobble by putting the vehicle on a lift and manually checking for wheel movement. Typically, it would be impossible to shake the wheel and tire. However, if it moves, the hub assembly needs immediate attention. The tire and wheel can literally come off the vehicle at any time, at any speed, if you don’t repair your vehicle.
Imagine driving on the freeway when the left front tire and wheel suddenly break off, sending your out-of-control vehicle skidding across several lanes of 65 mph traffic. This is not an exaggeration. This is reality, and can happen if you fail to notice the signs the wheel bearings are deteriorating and need immediate repairs. Your wheel bearing might be bad if you hear unusual sounds like humming, squeaking, or clicking. Some experts say a bad wheel bearing can sound like a bird chirping. Also, if your car wobbles or pulls to one side, you will want to get it checked.
“The good news is most of the time, a vehicle will let you know way before a failure ever happens,” said Gary Hardesty, Kelley Blue Book’s in-house service and maintenance expert and an A.S.E. certified master technician. “The key is to listen to your car. Most times, a failing wheel bearing will exhibit a growling type of noise that changes with vehicle speed. The faster the car (goes), the faster the frequency of the growl.”
The original equipment bearings on your vehicle are engineered for specific loads. Those bigger and wider tires look cool, as do tires with lower tread walls. But they place higher loads on the wheel bearings, possibly resulting in accelerated wear. That could present a safety issue if your wheel bearings fail.
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Catastrophicwheelbearing failure
If one tire wears out faster than the others, it could be a sign that the wheel bearings are worn. However, it also could be a sign the tire is improperly inflated (too much air pressure or not enough), the tires are improperly aligned, or the vehicle has damaged or worn suspension components.
A cambelt is, as you might imagine, a strip (or belt) that’s made of tough composite materials like polyurethane and Kevlar so that it can withstand the stresses placed on it. The cambelt has teeth on it so that it can keep the camshaft and crankshaft in time with each other.
Most vehicles today use sealed hub bearing assemblies that contain roller bearings. While we don’t address these, older cars used tapered roller bearings, which required servicing and preload adjusting to ensure the right amount of end play or axial clearance.
What happens if wheel bearings failwhile driving
Most manufacturers recommend that drivers replace cambelts after a certain number of miles or years, although these limits vary widely, so always check your handbook. Some cars will need a new cambelt or timing belt after 40,000 miles while others can go for 100,000 miles.
Bad wheel bearings can cause the steering wheel to vibrate. The intensity increases as the vehicle speed increases and the vehicle turns to the left or right. However, the vibration could be linked to an out-of-round tire (there could be a flat spot on the tire) or a tire that is no longer balanced. Another cause is damaged or worn suspension components.
Hardesty cautions that if you think something is wrong, don’t wait to get it diagnosed: “The longer you wait, the more it will cost as other components may be damaged by a wheel bearing.”
How long will awheelbearing last after it starts making noise
When you get your quote from AutoAdvisor, you can be sure that it’ll include the cost of the belt or chain, as well as labour and tensioners, so you’ll know what you’ll be paying from the very start. You’ll also, as we only work with approved partner garages, know that you and your car will be in safe hands.
Your costs will vary according to the make and model of your car and also with the cost of labour. You can expect to pay between £400 and £500, although prices can range from £250 to £1,000.
The primary role of your cambelt or timing belt is to control the timings of the engine’s internal combustion components. The cambelt controls the timings and sequences of the opening and closing of the valves and cylinders. The cambelt keeps the crankshaft and camshaft rotating in synch in order to maintain this sequence.
How to tell whichwheelbearing is bad while driving
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With a failing belt or chain, your pistons could end up repeatedly hitting the cylinder valves, which can cause serious engine damage.
The most easily identifiable and common symptom of bad wheel bearings is audible. But it can be confusing. For example, the source of a humming noise can be linked to other issues, such as tires and the CV joint.
Driving with bad wheel bearings impacts the safety of a vehicle, and it could cause a serious car accident. We do not advise driving on them when they fail and recommend getting them checked out as soon as possible. Bad wheel bearings can damage things like your hub, the vehicle’s constant velocity joint (CV joint), or the automatic transmission.
If your car won’t start and it’s not a battery or other easily identifiable issue, it could be that your cambelt is snapped. If the belt is broken, the camshaft can’t rotate and so your car simply will not start.
The valves and pistons must act in synch, as if the timing is even slightly off, the valves and pistons could incur damage, which can be very expensive.
There’s no hard and fast rule about how often you need to change your cambelt. A lot of this decision depends on what the make and model of your car is, as well as how many miles you do each year. You will need to replace your cambelt a few times over the life of your car, though.
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Worn bearings may cause a vehicle to pull to the left or right when brakes are applied. The direction the vehicle pulls signals where the worn bearings are located, on the left or right side of the vehicle. However, this can also signal brake rotor or brake caliper problems.
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If your engine sustains damage due to a faulty cambelt or timing chain, then you could face a large repair bill or have to replace your car entirely if the repairs cost more than the car’s actually worth. If you hear any strange noises coming from your engine, pull over safely and let AutoAdvisor help you.
Kelley Blue Book® Values and pricing are based in part on transactions in your area. Your ZIP code also helps us find local deals and highlight other available offers.
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Wheelbearing replacement cost
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The bearings are tightly packed in a grease-filled, waterproof, sealed metal ring. This housing, called a race, is located inside the hub, and each wheel has one. Wheel bearings have a Herculean responsibility: They are engineered to support the vehicle’s entire weight.
Frontwheelbearing noise symptoms
The camshaft controls the valves, which let fuel and air in and out, while the camshaft moves the pistons up and down in synch with the valves.
Your vehicle will signal that it’s time to replace a failed wheel bearing. For example, if you hear unusual sounds like humming or clicking, then your bearing might be bad. Watch out and listen for these signs and symptoms:
You can tell from your vehicle’s handbook whether the engine has a belt or a chain, although some makes typically use one or the other so you may know from this.
Editor’s Note: This article has been updated for accuracy since it was originally published. Rick Kranz contributed to this report.
Average life ofwheel bearings
The typical sounds of worn-out wheel bearings are squealing and/or growling. The sound intensifies as vehicle speed increases. Try to pinpoint the location of the noise because it will identify the location of the worn-out bearings.
While you might be relying on your mileage or calendar to let you know when to replace your cambelt, there’s always the chance that it might need swapping out earlier than recommended. Here’s the symptoms of a failing cambelt you should watch out for.
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Wheel bearings are theoretically engineered to last the life of the vehicle. There is no maintenance schedule for replacing wheel bearings, and there is no constant source of lubrication. However, they can be damaged, leading to failure.
The anti-lock warning light may illuminate if the ring, tire, and wheel wobble, the wheel’s speed sensor is no longer operating properly, and the ABS may operate sporadically or not at all. See a professional for repair.
Your cambelt is an essential component of your vehicle’s engine and it’s important to understand what it is and what it does within your car, as well as what to do when it starts to fail or breaks.
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It’s important to keep an eye on your cambelt and to get it replaced at the right intervals (or sooner if necessary) because a snapped cambelt can be very dangerous. If your belt or timing chain snaps while you’re actually driving, you might not be able to steer or brake, which is very dangerous indeed.
A timing chain performs the same role as a cambelt or timing belt, but it’s made from metal instead of Kevlar or similar.
In this story, we’ll tell you quick facts to know, such as what causes a bad wheel bearing, how long you can drive on one, and the estimated replacement cost of a wheel bearing as you maintain your vehicle.
Wheel bearings connect a car’s wheels to the axles. They allow wheels to turn with minimal friction. Though wheel bearings are low-maintenance parts, they are important safety components of a vehicle’s braking, steering, and suspension systems. The one-piece hub assembly, between the drive axle and the brake disc or drums, incorporates the hub, wheel bearings, ABS (anti-lock braking system) wheel speed sensor, and mounting flange.
If there is excessive play in the steering, meaning the steering seems less responsive or less precise than normal, worn bearings could be causing the problem. Also, this could be a sign the vehicle needs a wheel alignment. If you have any of the signs listed above, visit a dealer service or auto repair shop.
However, luxury cars are more expensive to repair. Do note that if bearings go bad at one wheel, replacing the bearings at the other wheel on the same axle is unnecessary. Don’t let someone talk you into work that is not needed. Get the price estimate for wheel bearing replacement for your make and model of car.
Kelley Blue Book® Values and pricing are based in part on transactions in your area. Your ZIP code also helps us find local deals and highlight other available offers.