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Featured Products
Our Manufacturer with main products: slewing bearing, roller bearing, koyo bearing
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timken l44600la
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timken l610549
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timken 37431a bearing
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timken 6461a bearing
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timken lm29710 bearing
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timken np114036
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timken lm603049 bearing
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timken l44640 bearing
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timken 368a bearing
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timken 203rr2 bearing
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timken 33275 bearing
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timken 14138a bearing
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timken lm48500la
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timken l44640
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timken 510003 bearing
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timken jxc25469c
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timken 3720 bearing
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timken 14137a
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timken hm813810
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timken m84510
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timken 382a bearing
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timken 09074 bearing
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timken ra012rrb
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timken h715311
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timken 08125 bearing
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timken l507949
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timken 37425 bearing
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timken hm813843
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timken jrm3564xd
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timken 13889 bearing
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timken m88048 bearing
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timken jm205110
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timken 594a bearing
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timken m804049
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timken 25877 bearing
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timken jlm704649
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ntn as205 bearing
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ntn 6203lx10
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ntn 6007lu bearing
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ntn de0678cs12 bearing
slewing bearing FAQS
QWhat is wheel bearing ?
AA wheel bearing is a set of steel balls held together by a metal ring called a race. They help wheels spin fast with as little friction as possible. They are used on all kinds of vehicles, from bicycles to aircraft and cars. On a car, a wheel bearing rides on a metal axle shaft and fits tightly inside the hub, which is a hollow chunk of metal at the center of the wheel. The hub holds the lug bolts that you use to bolt the tire onto the wheel. The wheel bearing is pressed into the hub from the back.
QWhat Does a Bad Wheel Bearing Sound Like?
AWhen bearings are damaged and making noise, it's hard to diagnose because you have to drive the vehicle in order to reproduce the sound. Here are tips to help you find the source of the problem: When the seal on the wheel bearing is broken or damaged, the noise starts out very faint and becomes louder over time. It sounds like the noise that your tires make when hitting a rumble strip on the highway, just not quite as loud, something like the sound of playing cards flapping against bicycle spokes. While driving down the road about 40 mph, sway the car side to side slowly, shifting the weight of the vehicle from one side to the other. Do not drive crazy or cause the car to spin out, just sway it gently. Notice whether the noise gets louder or softer. If the noise is a little less if you turn right, the damaged bearing may be on the right side, or vice versa. Note that tires that are "chopped" or "scalloped" (worn in patches) also make a rhythmic noise that increases in speed. This sounds very similar to a bad wheel bearing. Look at your tires as well if you hear this kind of noise
QWhy Do Wheel Bearings Make Noise?
AMost wheel bearings are hardened steel and can withstand a lot of abuse. Its two worst enemies are heat and water. Heat caused by lack of lubrication can destroy a wheel bearing. Water that penetrates a sealed bearing will also destroy it. Most wheel bearings manufactured today are sealed. They come from the factory pressed together as an assembly: front race, bearing set, center race, bearing set, and outer race, with seals on both the front and rear. Seals protect bearings from the elements, water, and debris, and they also seal in the high-temperature grease the bearing needs. When a seal is broken or damaged, the wheel bearing will fail and start making noise.
QHow to know you should replace wheel bearing ?
AWheel bearings do not fail immediately, and usually give you some time before you need to have them replaced. I suppose if a wheel bearing failed completely it could lock up and prevent the car from moving. Then again, my daughter drove on a noisy bearing for six months and nothing happened except that it got louder and louder. You shouldn't necessarily have the bearings on both sides replaced. Just because one fails is no reason to think the others are about to; bearings should last a long time.
