In some cases, you might even need to replace the entire hub because you won’t be able to get to the damaged bearing without disassembling the entire unit.

These suffixes indicate that the cage (the part of the bearing that holds the balls apart) is made of polymer material. Usually made of glass-fiber-reinforced polyamide.

6311SKF

Some vehicles also have needle bearings, which is a type of roller bearing that uses smaller needle rollers. This type is not adjustable because the clearance between the diameter of the straight roller is manufactured into the bearing itself.

The Deep Groove Ball Bearing, known as 6311-SKF SKF, has an inner diameter of 55 mm, an outer diameter of 120 mm and a thickness of 29 mm.

This suffix indicates that the bearing is designed for very high operating temperatures. In general, the temperature is indicated after this suffix.Beware, these bearings are not suitable for all applications, and will require a high temperature for optimum service life.

6309bearing

These suffixes mean "with 1 or 2 sheet metal deflectors", for dust-tightness. At 123Roulement, we specify whether the bearing is sealed on 2 sides with "ZZ".

Rollers on this type of bearing are secured in a cage between the inner and outer races. The tapered roller bearing is expected to move around the cage freely to allow heat expansion.

Once this happens, you’ll notice that the brake pedal feels low or spongy because the piston is traveling farther than normal to apply braking power.

CarParts.com offers a wide variety of wheel bearings from the top manufacturers at different price points. You can purchase wheel bearings individually, in sets of two, or sets of four, depending on your needs. Our parts are shipped from strategically located warehouses, so you won’t have to wait a long time for your part to arrive.

Because both the bearing and rollers are tapered for this type, it can accommodate more weight. Unlike other types, the load on the tapered roller bearing is directed over the entire length of each roller instead of concentrating on a small spot.

These anti-friction wheel bearings come in the form of ball, roller, and tapered roller bearings. And while each of them has distinctive features, they all perform the similar task of converting sliding friction into a rolling motion.

Wheel bearings let the wheels rotate while supporting the entire vehicle. These bearings come with rolling parts inside them that help reduce friction.

The tapered roller bearing is the most common type used in vehicles. It is designed to support both radial and axial loads.

The CarParts.com Research Team is composed of experienced automotive and tech writers working with (ASE)-certified automobile technicians and automotive journalists to bring up-to-date, helpful information to car owners in the US. Guided by CarParts.com's thorough editorial process, our team strives to produce guides and resources DIYers and casual car owners can trust.

Roller bearings have rollers between the inner and outer races to reduce friction. Compared to a ball bearing, this type has a longer contact area to support heavier loads.

William “Bill” Guzenski has produced hundreds of how-to videos for the automotive community. He’s an ASE Certified Master Automobile Technician, and is affiliated with the Specialty Equipment Market Association (SEMA). He loves attending race events and car shows throughout the country, as well as traveling in his 40-foot motorhome, exploring abandoned mines and ghost towns.

Means "increased internal clearance". Often referred to as high-speed, this means that the bearing is designed for high rotational speeds and moderately high temperatures. CAUTION: a bearing with increased internal clearance will not operate optimally at low speeds. Please refer to the data sheet for the bearing you are looking for to find out its rotation speed limit.

The Deep Groove Ball Bearing, known as 6311-SKF SKF, has an inner diameter of 55 mm, an outer diameter of 120 mm and a thickness of 29 mm.

6311 Bearingprice

A stainless steel bearing is generally magnetizable, as it is made from AISI 420 stainless steel, which is harder and more shock-resistant than standard stainless steel (AISI 304).To check whether your bearing is made of stainless steel, simply read the reference engraved on the side of the bearing. This reference should begin with the prefix "S" meaning "Stainless Steel".

6208bearing

Driving with a bad wheel bearing is never a good idea. Aside from compromising your safety, you also risk damaging other parts of your vehicle, which can lead to costly repairs down the road. In extreme cases, driving with a bad wheel bearing can even cause one of your wheels to fall off while driving.

Although there is less friction when using ball bearings, they’re not made to support the same weight as roller bearings.

Wheel bearings are a crucial component because they let the wheels rotate while supporting the weight of the entire vehicle. When they become faulty, your vehicle’s wheel hubs are going to create noises and vibrations while you’re driving, which can be unnerving. They can fail catastrophically and cause your wheel to seize, which can result in a crash. Replace your faulty wheel bearings immediately with new ones from CarParts.com.

The cost would be the same as a replacement, as there’s no other way to fix a damaged wheel bearing than to replace it with a new one.

These suffixes mean "with 1 or 2 rubber seals". At 123Roulement, we use the number "2" to specify when the bearing is sealed on both sides.

6311 bearingDimensions

Some bearings are available with more or less important variants (high or low internal clearance, special grease, very high temperature, etc.). These variants are systematically indicated by prefixes and suffixes in the part number.For example, the suffix "2RS" means that the bearing is splash-proof, thanks to a sealing flange on both sides of the bearing.The suffix "C3" means that the bearing has increased internal clearance, and will require a higher operating temperature, or a higher rotation speed.

The Deep Groove Ball Bearing, known as 6311-SKF SKF, has an inner diameter of 55 mm, an outer diameter of 120 mm and a thickness of 29 mm.

Any information provided on this Website is for informational purposes only and is not intended to replace consultation with a professional mechanic. The accuracy and timeliness of the information may change from the time of publication. Read our full disclaimer here.

A damaged or worn-out wheel bearing can cause the brake rotor to wobble on its axis, which can push the caliper piston into its bore.

The ABEC standard is used to classify bearings according to their machining tolerance. This standard is regularly called into question because it does not include certain technologies that are important for guaranteeing proper operation, both in terms of efficiency and bearing life.123Roulement therefore makes little use of this standard.

6312bearing

Replace your vehicle’s faulty wheel bearings before they fail. Check out our selection of wheel bearings and shop at CarParts.com today!

Lastly, fatigue or spalling can lead to fractured bearing surfaces and cause the bearing material to break off after some time.

Ball bearings reduce friction by using hardened steel balls between the inner and outer races. This type of wheel bearing is designed to operate at high speeds and control an axle shaft’s thrust movement.

Wheel bearings are generally designed to last the lifespan of your vehicle. However, driving conditions, habits, and other factors can cause them to fail like any other car part.