GWH252-16MW

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POWER is at the forefront of the global power market, providing in-depth news and insight on the end-to-end electricity system and the ongoing energy transition. We strive to be the “go-to” resource for power professionals, offering a wealth of information on innovative business practices, sound safety measures, useful productivity enhancements, and much more.

I actually misspoke in my initial post. The dealer replaced the bearings right out of the box. These lasted from 2004-2009. The same mechanic replaced the bearings in 8/09, 7/11, and now they’re going bad again. I hear the same familiar sound.

Infortunately my mechanic isn’t too comfortable talking about his procedures, i.e. being questioned. In the past, he’s said that this just happens wtih some cars and then he hands me the bill. About $175 labor + $50-60 per axle.

Offshorewindpower

Ultrasound is the best tool for detecting friction, impacting or turbulence. As compressed air seeps through a leak, it produces turbulent flow.

I had to replace a left front wheel bearing on a 2004 PT Cruiser at only 40,000 miles. By browsing PT forums I found out that in high salt areas they were discharging static or other elecrtricty to ground through the left front tire and it was causing arcing inside the bearing.

Windenergy

I had to replace a left front wheel bearing on a 2006 Chevrolet Uplander at about 65,000 miles and a left front wheel bearing on a 2003 Toyota 4Runner at 72,000 miles. In all my previous vehicles, I never had to replace a wheel bearing. I do remember repacking the front wheel bearings on my rear wheel drive cars that were made back in the 1940s through the 1970s. The rear axle wheel bearings were lubricated by the 90 weight oil in the differential and rear axle. My only explanation for having to replace the wheel bearings in my more modern cars is that sometimes parts just wear out prematurely.

The roads aren’t too bad. I live in the city of Chicago. Some roads are a little rough though overall they’re fine. I don’t know about the warranty on the wheel bearings. I’ll check with the mechanic. My guess is they don’t have a long warranty given that the mechanic I used did the bearings twice.

About 85K. not sure about the installation process, that is did he force them using the inner race. I’m pretty sure it’s the front . Since it’s happen quite often with this car, I’ve gotten accustomed to the presence / location of the sound.

Seagreenwindfarm

1970 ...

a backpack; a bag of 1,000 ball bearings; 10 feet of string; a bell; 5 candles; a crowbar; a hammer; 10 pitons ...

Oct 10, 2022 — BearingNEWS is the World's leading bearing industry magazine and online platform, which is published in 6+ languages. The BearingNews ...

POWER is at the forefront of the global power market, providing in-depth news and insight on the end-to-end electricity system and the ongoing energy transition. We strive to be the “go-to” resource for power professionals, offering a wealth of information on innovative business practices, sound safety measures, useful productivity enhancements, and much more.

The mechanic has shown me the bearings. It looks like the grease is almost gone and you can see rust starting to develop. Does this mean they’re running too hot? Or could there be an issue with sealing?

The longestwind turbineblade

Back in the day, with RWD cars, the front bearings were open tapered roller type, you could remove them, clean them and re-pack them. This was part of a front brake job…Kept clean and lubricated, they would last the life of the car…Todays cars use sealed straight rollers that perhaps have a little more trouble absorbing side loads than the old tapered roller design…And they can’t be cleaned and re-packed…As with ANY bearing, once the seal fails, the bearing is not far behind…

202472 — How to become a distributor · 1. Identify your industry. The first step to becoming a distributor is identifying the industry you'd like to ...

The company said it has introduced several new technologies in the manufacturing process of the blade. Sany said those include “self-designed fiberglass pre-quilting technology, long-distance automatic infusion technology for large and composite blade, and three-dimensional design technology for trailing edge blind bonding insert, etc., transforming the traditional manual manufacturing to intelligent manufacturing and enhancing the lean production with digital intelligence. In addition, recyclable polyurethane structural parts are also adopted to enhance the recyclability of ultra-long blades.”

Wind turbine design is the process of defining the form and configuration of a wind turbine to extract energy from the wind. An installation consists of the ...

The first 131-meter-long blade rolled off the production line at the Bayannur Intelligent Industrial Park in January of this year, Sany officials said. The company has said that as the length of blade increases, “the requirements for stiffness and strength are also higher, otherwise issues such as stall and classical flutter might occur, resulting in increased vibration, even breaking of the blade. To address such challenges, by adopting an optimized airfoil design featuring large thickness and blunt trailing edge, the overall absolute thickness of SANY RE’s SY1310A wind turbine blade is significantly improved.”

-----You don;t say how many miles you have on the car, but wheel bearings going bad within two years of driving suggests either an installation problem or poor bearings. Without seeing how they were installed (did the guy on the press force them in by using the inner race?) it’s impossible to guess.

Windpower

I’ve got a Mazda Protege5. I had the wheel bearings replaced right of the box shortly after I bought the car new in 2004. They went bad again in July 2011 and now they seem to be going bad again. That same familiar sound. Seems strange to me. I’m not hearing anyone else talk about regularly having their wheel bearings go bad.

Of the 8 cars I’ve owned over the years, I’ve only had to replace 3 front wheel bearings. If driven on smooth roads, bearings can last the life of the car. It’s something yoiu just don’t worry about anymore. Owner’s manuals seldom mention bearing service anymore.

Your experience is unusual. Something about that car is not right. Do the bearings look like they have been unusually hot, such that the grease was destroyed?

Today’s cars use double row “tapered ball bearings”, which are just ball bearings in tapered casings. They do it to reduce rolling resistance. Here’s an example. http://tijil.org/Scion_Docs/Scion_06_misc_docs/2007sciontc_ncf%20Folder/axle.pdf

I just recently replaced my front bearings. I was downright miffed when I discovered that they were using ball bearings for reduced rolling resistance. Darned CAFE requirements.

This 15-MW onshore wind turbine was installed October 8, 2024, at a site in Tongyu, Jilin Province, in northeast China. Source: Sany Group

Globalwindatlas

You don;t say how many miles you have on the car, but wheel bearings going bad within two years of driving suggests either an installation problem or poor bearings. Without seeing how they were installed (did the guy on the press force them in by using the inner race?) it’s impossible to guess.

Centralized lubrication systems are designed to provide grease for lubricating friction points on industrial and mobile machinery.

Back when I was a kid in the 50’s, a car lasted about 100k miles, and it was not unusual to have to replace at least the front wheel bearings once in the life of the car.

Sany is manufacturing the 131-meter-long blade for the company’s 15-MW onshore wind turbine at the Bayannur Intelligent Industrial Park in China. Source: Sany Group

Mingyang

In time, the hub bearing can wear out, causing a clicking or roaring sound from the wheels or vibrations in the steering wheel of your Ford. If the ABS sensor ...

Dec 21, 2012 — In most cases (including hers), that initial grinding/scraping noise occurs after wet or damp conditions when the brake rotors have built up a thin coating of ...

A Chinese company has installed what it calls the world’s largest onshore wind turbine. Sany Group, a multinational firm known for its manufacturing of heavy equipment, on October 9 announced a 15-MW wind turbine has been placed in service at a site in Tongyu, Jilin Province, in China.

Bearing failure IMO, is dependent more on vehicle use with th influence of poor design. I wonder how well the bearings are sealed ? Check with the dealer on recalls.

These days, when you hear about someone replacing any wheel bearing, the car probably has 200k or better on it. I replaced all four wheel bearings on my '91 Volvo by the time it hit 250k miles.

POWER is at the forefront of the global power market, providing in-depth news and insight on the end-to-end electricity system and the ongoing energy transition. We strive to be the “go-to” resource for power professionals, offering a wealth of information on innovative business practices, sound safety measures, useful productivity enhancements, and much more.

The meaning of TIMING BELT is a belt that connects the camshaft and the crankshaft in a vehicle engine (as in an automobile) and coordinates the opening and ...

I’ve had a couple of wheel bearings go bad over the years. Yet, given the number of cars I’ve had and all the miles driven bad wheel bearings is a rare event. Your experience is either a bad design or someone is using cheap parts.

In the interest of full disclosure, I did have about 180,000+ miles on the originals. I guess I can’t complain too loudly.

Sany said the turbine has a design life of 25 to 30 years. The turbine blade is 131 meters long. The company said the SI-270150 features “a lightweight design and intelligent load reduction technologies, which reduce the overall load and facilitate long-distance land transportation.” The drivetrain includes a dual tapered roller bearing, or TRB, integrated main shaft support system, which helps ensure high load-bearing capacity and stability, according to the company.

Chinese companies already have deployed the world’s largest offshore wind turbines, as well as the largest floating offshore wind platform.

Sany said the machine is a prototype and will be tested over the next year to “thoroughly verify” its reliability. The company said the model SI-270150 is the largest onshore turbine in terms of single-unit capacity, and also has the largest rotor diameter—270 meters—of any onshore turbine installed worldwide to date.

Experience POWER Week brings stakeholders across the entire energy value chain (from generation to transmission, distribution, and supply) together in an intimate, solutions-driven environment to learn how to navigate the energy transition while keeping organizational goals on track. Access education focused on new and emerging trends like decarbonization, distributed energy resources, and the hydrogen economy, as well as traditional electric…