It is recommended that you do not drive with a damaged wheel bearing. Continuing to drive is not only extremely dangerous but can also cause extensive damage to the hub, axle and other associated parts.

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*2 Highly accurate bearing life prediction method applying ultrasonic testing: A technique for accurately predicting the life of a rolling bearing based on the size and amount (statistical data) of non-metallic inclusions in the steel （Patent pending）

Dynamic load ratingpdf

*1 Basic rating life : The total number of revolutions at which 90% of bearings can roll without flaking due to rolling contact fatigue when a group of identical bearings revolve individually under the same conditions.

Over time, a damaged wheel bearing can affect your car’s steering, as the weight of the bearings, or any defects in the race can cause your wheels to not sit level with the road. This can lead to uneven and premature tyre wear, and your car behaving unpredictably when turning corners. Once the problem has been diagnosed, a wheel bearing replacement should be carried out as soon as possible. * Mechanic will loosen the lug nuts of the wheel where the bearing has been affected and remove the wheel * Mechanic will remove the brake disc and caliper if needed * Mechanic will remove the hub nut holding the wheel bearings assembly * Mechanic will press out old/ damaged bearing * Area will be inspected, cleaned and new wheel bearing will be installed * Mechanic will reinstall all parts as required

As the basic dynamic load ratings of bearings*3 improves, they can be used in higher load conditions, enabling smaller bearings to do the same job.

Dynamic load ratingcalculator

*3 Basic dynamic load rating: The load capacity of a rolling bearing that allows the inner ring to rotate one million times with the outer ring stationary without changing direction or size.

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This revision, which extends the basic rating life*1 (estimated life) of the main types of NSK rolling bearings, applies the

If a wheel bearing becomes faulty, it will usually make a grinding noise that will become louder as the vehicle moves faster. The vehicle may also feel like it is shaking, the noise may also vary in pitch as you turn the steering and travel around corners. When you notice any of these symptoms, it’s important to get it inspected as soon as possible as continuing to drive can be dangerous and cause further damage to the vehicle.

The average cost of replacing a wheel bearing is £175, with prices ranging from £120 and £300. The cost will vary depending on whether the front or rear or if all of the wheel bearings need replacing. In some cases, if the faulty wheel bearings have caused additional damage to other parts of the suspension or transmission, then the necessary parts will need to be replaced which could affect the overall cost of the repair. The exact price of the wheel bearing replacement depends largely on your car and the parts recommended by the manufacturer.

2) Improved basic dynamic load ratings*3 allow the use of smaller bearings, yielding lower bearing torque resulting lower power consumption and lower CO2 emissions during bearing use.

Shop our selection and keep your ride smooth and safe with a new wheel hub assembly or wheel bearing replacement.

Dynamic load ratingchart

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The “Highly Accurate Bearing Life Prediction Method Applying Ultrasonic Testing (World's First)”*2 has made it possible to calculate the long-life performance of NSK bearings with higher accuracy than before. NSK has now applied this calculation method to NSK bearings, improving basic dynamic load ratings,*3 which are used for calculating the estimated bearing life. With this revision for example, the estimated life of radial roller bearings is up to twice as high as before.

With this improvement of basic dynamic load ratings,*3 customers will be able to take even better advantage of the long-life performance of NSK bearings in their machine design. This will have the following effects.

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Unless you are a qualified mechanic with the required skills, training and equipment to do the job, we strongly recommend a wheel bearing replacement is only carried out by a professional mechanic. ClickMechanic can help get you a vetted and local mechanic to carry out the work. Just enter your postcode and your car's registration number at the top of this page and select the work needed to get an instant fixed price up front.

Wheel bearings are important components of a car's suspension system. They allow the wheels to rotate smoothly and with little friction. Wheel bearings typically last around 80,000 miles, but they can start to wear down sooner if the car is driven in harsh conditions or if the suspension is not maintained and serviced as needed.

NSK began its journey manufacturing the first bearings in Japan in 1916, and has since developed into a global organization researching, designing, and manufacturing Motion & Control™ solutions essential for mobility and industrial applications. NSK is the top supplier of bearings in Japan and is the third largest supplier in the world by market share.

Ultimately, the time that the job will take will depend on a number of factors, like your vehicle's make and model, year, as well as other factors. Select your car at the top of this page for information on job time and cost for your vehicle through ClickMechanic.

The revised basic dynamic load ratings*3 are reflected in the engineering tools (NSK Online Catalog, Technical Calculations, and 2D/3D CAD Data) on the NSK website as of today. The revised figures for basic dynamic load ratings*3 can be verified in the NSK Online Catalog and 2D/3D CAD Data. Bearing life and other calculations utilizing the revised basic dynamic load ratings*3 can be performed on the Technical Calculations section of the website. (Please refer to the press release, “NSK Offers Improved Engineering Tools on Website: Delivering ease-of-use, helping to improve customers engineering work efficiency,” issued today, July 1.)

Your location can also be a key factor in determining the price of a wheel bearing replacement. For example, average hourly labour rates and demand in cities like London is around £50-£100 while in towns with lower demand, the labour rates can range from £35-£50. The type of mechanic, for example, a mobile mechanic vs a dealership garage technician can also affect the total cost of a wheel bearing replacement.

If a wheel bearing starts to fail, it will make a grinding or growling noise while the vehicle is in motion. This noise will usually get louder as the bearing wears down. In some cases, the noise can be similar to that of brakes grinding. Once a wheel bearing fails, it must be replaced as soon as possible to avoid further damage to the suspension system.

Dynamic load ratingball bearings

Replacing wheel bearings is definitely worth it to extend the life of your tyres and other suspension components. You can replace all 4 bearings or just the one if needed.

The best practice is to replace all four wheel bearings at the same time or at the very least should be replaced in pairs, ie front or rear. This ensures that all four bearings are the same age and have been through the same amount of wear and tear. Additionally, if one wheel bearing needs to be replaced, the other three are likely to need replacement fairly soon. You can, of course, choose to replace one at a time but it’s not advisable and is often not the most economical choice in the long run.

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NSK Ltd. announced today that it has revised its basic dynamic load ratings,*3 a parameter used to calculate the estimated life of rolling bearings.

Staticload rating

Example: Tapered roller bearing HR32306J can be replaced by the smaller HR33206J. Replacing the bearings is estimated to reduce bearing torque and power consumption by approximately 18% and generate an annual power savings*4 during product use of approximately 48 kWh. This converts to a reduction of approximately 22 kg in CO2 emissions*4.

To avoid having car owners overpaying and get a fair price for a wheel bearing replacement, we use real-time data of thousands of car makes and model data, local labour prices for wheel bearing repairs and replacements and part prices to provide an instant fair quote. Simply enter your vehicle registration number and postcode to get an instant price for a wheel bearing replacement for your car.

Dynamic load ratingof bearing

Example: Machines that used the tapered roller bearing HR32306J can now use the smaller-sized HR33206J. This change results in a smaller size (bearing outside diameter: approx. 14%, bearing assembled width: approx. 13%) and lighter weight (bearing weight: approx. 38%).

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More noticeable at low speeds, a broken wheel bearing will cause vibrations which are typically coupled with a grinding sound.

Dynamic loadcapacity

Dynamic load ratingformula

A wheel bearing replacement is a complex job that requires automotive repair skills and specialised tools as it involves working with a vehicle's suspension, braking, and steering components.

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A front wheel bearing replacement on average takes just over 1 hour, but can take anywhere from under 1 hour to 2 hours. This is because replacing front wheel bearings tends to be a bit more time-consuming than replacing rear wheel bearings as it may require removal and reassembly of additional car parts. A rear wheel bearing replacement takes on average under 1 hour but can range from under 1 hour to 2 hours.

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If you hear a grinding or growling noise coming from the wheels, these are signs that your wheel bearings need to be replaced.

Bearings with improved life estimates include deep groove ball bearings, angular contact ball bearings, self-aligning ball bearings, cylindrical roller bearings,

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