¿Qué es un cojinete? | GGB Bearings - cojinete

2024-12-05 18:22:43

I don’t own my Saturn anymore, I sold it after I retired as it became redundant. I wish I still had it, last I heard was about a year ago and it was still on the road then.

Wheelbearing noisequick fix

It already is giving you a warning sign, its noisey. Its sort of like asking if your chest pains are a warining sign of a heart attack. By the time your asking it may be too late.

No noise until the vehicle has warmed up. That got me worried about my transmission so I checked the transmission fluid, and it is good. The fluid is pink to almost transparent. No burnt smells.

awesome dave, good luck with it! i've thought about doing the same thing, getting that press. i was just afraid i'd have no clue how to use it properly and mess up the hub/bearings.

I installed new bearings inmy 96 Legacy and it made noise right away even with the new Subaru bearings, meaning the hub was hosed. They made it 20,000 miles before giving out again this year. It kept the same general noise level for 20,000 miles. As soon as it started getting worse, it got worse quickly. Once it started getting worse, we probably put 500 miles on it before it got to the point the car was wandering and dangerous. So in my case - 500 miles once the noise started to change/get noticeably worse.

Transmission fluid level is good. Fluid is very clean, pink of color and almost transparent in the paper towel. No burnt smells.

replace it now before the driving season starts, otherwise Mr Murphy will tap on your shoulder, usually after you get the car packed for a trip, the wife/kids are driving, or you really need to go someplace in it.

Any bearing that has failed, ie has a damaged race, damaged cage, damaged roller/ball, etc, is not going to evenly distribute the centrifugal force and, given enough time, I could see how it would knock the seat (or hub in this case) out of round even ever so slightly. Once the hub is out of round, the new bearing will suffer the same fate as the old since it does not have even support around it's circumfrance.

If it starts to change and aget worse, i would lean towards the caution area. Mine got rather scary when it started to drift, pull, and wander on the road and that was just a rear bearing.

Be sure to inspect your axle boots but if they tear, the CV joint will go quickly, but that makes a clicking sound on turns. Do not remove any dust shields. If there is any interference, just bend the dust shield away.

When in doubt, get it checked out. Go to the shop where you buy your tires, get your tires rotated, and ask them to check the bearings.

“It was a ring on the inner joint of the cv shaft rubbing the transmission housing. This ring is basically just a dust boot and can be removed without hurting the vehicle, the seal on the output shaft bearing does a well enough job keeping things out.”

it will go until it leaves you stranded, or maybe causes an accident at 70 mph. it's not going to stop turning in your drive way or at the shop. it's going to stop on the road.

Till it fails (which ttechnically it has already failed). Also you can be destroying the hub, as i have done that many times, and that quickly ups the repair bill. Just fix the thing before you need a bearing, hub, and a tow truck.

Wheelbearing noisewhen accelerating

Unless both are bad, one manifests as a vibration that is not noticeable when driving, and the other manifests as a classic wheel bearing noise?

May 28, 2024 — A bad wheel bearing can show up through a variety of symptoms, each hinting at underlying issues that need immediate attention.

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I wanted to record a video at 1 AM and upload it here but my phone’s mic is trash and you can’t hear anything at all in the video.

My Saturn had an intermediate shaft on one side so the axles could be the same length. That intermediate shaft has a bearing in it and that could become noisy. Not sure what it would sound like though.

Today the dealer replaced both rear wheel bearings, at no charge, covered under a 100k extended warranty Subaru is offering specifically for the wheel bearing issue.

I had a really noisy bearing in the head of a mill last summer. When I got it apart, it turned out to be one of the bearings on the motor shaft. It was a ball bearing and the balls appeared to be in good shape with just the slightest hint of wiggle indicating it was bad. But the section of shaft that the bearing was pressed onto was so wrinkled and distorted that one had to wonder if it was ever hardened. It was made overseas so I suppose one still should wonder, but assuming it was, that's at least one example of a bearing seat getting hammered. If I had tried to press a new bearing on that shaft, I'd be replacing it inside a month I'm sure.

I'm not an expert on wheel bearings or even bearings in general, but as a machinist in a shop that does it's own maintenance, I'll venture a guess.

Wheelbearing noisetest

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When towing a boat trailer, it is a common practice to check for failed wheel bearings by touching the hub. A very hot hub can mean a failing bearing. The disc brakes on a Subaru will normally generate quite a bit of heat. Could you use use hub temperature, say one hub is WAY hotter than the one on the other side of the car, as a fast and dirty checlk on the road?

2001 Forester, 93000 miles on it. Driver's rear wheel ball bearing cracked (yes, one of the balls actually broke in half) during a highway drive on 11/26/8. It was very loud from then until yesterday 4/26/9 which is the earliest I could get to it to fix it. But for us that was only about 1500 miles. There never was any play or wiggle to the wheel.

Wheelbearing noisesafe to drive

In my experience they start with a "wub, wub, wub, wub" kind of sound. Often it's hard to distinguish from road/tire noise.

I have a noisy front (pretty sure) wheel bearing on the right side, its slowly getting louder, I can hear it while going straight and its a little worse going left, quiets completely during a right-hand turn, and I'm starting to be able to feel a little thrumming through the steering wheel and the floor.

Wheelbearing noisewhen driving

On my 2002 Saturn, the rear wheel bearing that went bad made a noise like a noisy tire, i.e. a mud and snow tire or all terain tire. In fact the original tires masked the noise so I didn’t discover that it had a defective bearing until I put on some premium tires.

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I am sure it is the wheel because the sound seems to swing back and forth. If you accelerate the noise goes away but as soon as you let go the gas the noise comes back, and it gets worse the faster you go. I also tried this on neutral.

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Wheel bearing noise shouldn’t change much whether you’re in the throttle or off throttle, as long as you’re rolling. As mentioned wheel bearing noise will change when turning. Generally the noise is more pronounced when turning in the opposite direction of the bad bearing. Since the noise changes with throttle input, I’m not certain it’s wheel bearing related…

I just took my 2005 OBW (57,000 miles) into the dealer today. I started hearing low humming sounds from the rear, and over the course of a month it slowly progressed to the sound a truck makes with aggressive oversized tires. I also started noticing it was a little harder to keep the car straight...almost like a strong wind blowing perpendicular to the car while on the highway at all times.

Also, I have heard the sound of bad wheel bearings before in the other vehicles I used to own. I had to replace 3 of them. I am familiar with that droning/humming noise, and that it gets worse when turning or at certain speeds but no such thing is happening on this Saturn.

When the front wheel bearings went out at 275k, they sounded like a airplane propeller but only made an audible noise above 50 mph.

i just looked up my spreadsheet - the bearings lasted 17,000 miles after they started making noise. i would guess every case is different, that was during winter, i would guess summer heat would have made it worse.

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There was almost no temp difference with a borrowed IR thermometer. One or 2 degrees at most either way, depending on which way the wind blew on the drive.

Thanks for replying. I just found this video on the Saturn Fans forums. I am wondering if you can take a look since you also own a Saturn. The noise you hear in this video is exactly the same noise I hear in my car. Link to the video is here: https://www.youtube.com/watch?v=Yof6ggFXKjo

i bet you got quite a bit of time yet then if it's not showing a temp difference. the temperatures will start destroying the bearing quickly and you haven't gotten there yet.

Wheelbearing noisewhen turning

I am wondering if you know what “ring” is he referring to because he also says it is “basically a dust boot”? I am confused.

When the car was still warming up. I drove around town at different speeds and couldn’t hear the noise at all. After 10 to 15 minutes of driving I started hearing the squealing/squeaky noise.

Wheelbearing noisewhen braking

Dec 13, 2021 — 5 Warning Signs of Faulty Wheel Bearings · 1. There's unusual tire wear. Abnormal tire wear may mean you have a problem with your wheel bearings.

Budget's been maxed out (as it should be!), I tested the temps (with the back of my hand) on the wheels around the lug nuts after a lengthy drive last night and all were cool, with both fronts slightly warmer than both rears.

In a RIGHT turn the LEFT bearing is more heavily loaded, so I would expect the noise to be worse when the bad bearing is more heavily loaded.

Front wheelbearing noisesymptoms

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Usually bad bearings are reported as a growling noise, louder the faster you go. Or as a rhythmic rrrr rrrr rrrr noise, most apparent in parking lot slow-speed driving, often during turning. But a whistling sound is certainly possible, especially as a first sign of a failing bearing. Ask you shop to double check the differential fluid level too; if low that can cause sort of a whirring/whistling noise. On your SL2 checking the differential fluid level is probably the same procedure as the transmission fluid level.

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Yeah I took the car for a test drive at 1 am and I couldn’t hear any humming, droning noise. I have hear wheel bearings going bad before in my previous vehicles, but this is sounds nothing like it.

In my experience they start with a "wub, wub, wub, wub" kind of sound. Often it's hard to distinguish from road/tire noise.

Dave, might be a good time to invest in one of those infrared heat devices, they are sweet. I diagnosed a front wheel bearing last week on a friends car. Drove to my house, hit it with the gun and had it narrowed down in seconds.

I was going about 10 mph to 20 mph in very heavy traffic when I noticed some sort of whistling noise coming from the driver side wheel as I passed by the cars on my left.

If it’s the inner CV joint slightly interfering with the transmission housing your shop should be able to confirm that by wear patterns on the interfering parts. If that’s the only problem the best path is probably to keep everything installed as-is and just ignore the noise. If this just started for no apparent reason, no work done in that area prior, one has to wonder why it is happening now? That inner CV joint moves with the axle as the wheel goes over bumps, during turns, etc. So there may be a problem brewing with the front suspension or steering. Good idea to have the front suspension & steering parts checked.

My friends Legacy I just replaced front bearings on last weekend he drove a few hundred miles and it gradually got worse over the past couple weeks, they were quite loose when I pulled the hub Saturday. Don't know mileage though.

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I am not driving this Saturn atm. I am taking it to a shop whenever I have the time. I know it’s difficult to diagnose a problem by describing a noise on the internet.

Transmission and differential bearings make a whistling noise when they are going bad and it is dependent on throttle pressure. If you have a manual transmission, it uses Dexron III as the lubricant. It has a dipstick so you can check the level and color of the ATF. If it is low, add some more. You could probably use a thickener the increase it’s viscosity and mask the noise, but don’t use very much.

I think this might be a good time to replace your ATF. Just do a drain and refill using Dexron VI instead of Dexron III. The oil filter is on the top or side of the transmission and is a spin on so it is easy to replace. Transmission fluid should be bright red. Pink indicates it is near the end of its life. It will start to turn brown soon and that would not be good. I would not flush, just drain, change the filter and refill.

I searched the Saturn Fans forums and found someone with the same problem. Link to the video is here: https://www.youtube.com/watch?v=Yof6ggFXKjo

Dave, I also have the 20 ton H.F. press. I hope yours comes with the new plates. Mine came with the flat ones, but the other day when I was in the store I see they now have plates that are not flat on one side which would make doing the bearing jobs a lot more easy.

I am assembling the tools to do the job (I've wanted a press for a long time, heh, harbor freight here I come), and after they arrive I'll do the job as soon as I can determine which bearing it is.

20 ton press (yeah, the 12 ton would be enough, but it wasn't *that* much more, and the A-frame one looks cool- and it's best to derate HF tools anyway)

To find the one that is bad raise the two front tires off of the ground at the same time and spin the wheels one at a time while holding the coil spring. The one that is bad will cause vibration in the spring that you will feel with your hand. If they feel the same then do the back ones the same way. I wish I could credit the one that gave this tip here a few years back but I dont remember who it was.

My car I noticed the shrill noise for a few years. Halfway into a 500 mile trip the wheel bearing went out. Drove it the other half and got it replaced. Not saying it is what you should do, just my story. No sqeak or squeal after new wheel bearing.

Like I mentioned before, the noise is totally absent when you are giving it some gas but comes back once you let go the gas.