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Bearing Replacements


The main advantage of buying required products from an authorized dealer is to ensure that you have warranty or even can get replacement bearings. The replacement bearings can be obtained only from authorized dealers and not from unauthorized dealers since majority of the branded companies sell their products only through authorized dealers. Most of the biggest brands in the industry have their plants in multiple countries, which allow them to have their own stores in these countries. There are many types of bearings available in the market and all of them have their importance in the market. Let us look at two bearings types available. Shaft Bearing: It is a mechanical device that supports particular load and allow the parts to move either rotational or in sliding motion. It is also known as rolling- element bearing. The Shaft bearing uses small cylinders or sphere, which rolls or rotates within the shafts and the outer part to reduce the chances of friction and create a tighter tolerance. The ball bearing is also a type of shaft bearing since it works towards reducing friction between the two inner and outer shafts. These shafts are available in many ranges from inexpensive high precision to high reliability bearings. These kinds of shafts are used in aerospace, industrial and automotive applications and industrial machinery. Pillow Block Bearings: These are the most widely and commonly used mounted units, which are specially designed to provide and handle shaft support especially on the mounting, surface which is parallel to shafts. While mounting the bolt holes can be adjusted. The Pillow Block bearings are manufactured in many specifications and configurations. For light duty applications, pressed steel pillow block bearings are the best available in the market. These devices have the ability to align themselves mainly in textile machinery, mining machinery, agricultural machinery and metallurgical machinery. The main advantage of the self-aligning structure is to compensate any alignment errors of the shaft. Therefore, pillow block bearings are mainly used to handle and align the shaft accordingly between the components. Bearings are very useful and essential for the potential and effective working of many machineries and tools across the world. Each type of bearing has its unique specialties and uses. The demands for branded products and devices have increased in recent years due to the increase of fake products. No matter however the fake products are made to look similar to the original product, it cannot have the quality and efficiency of the original product.

The History of Bearings
The ancient Egyptians were the first to demonstrate an understanding of the mechanical principles behind bearing operation, by using shaped tree trunks as rollers beneath the hauling sleds used to build the Pyramids. Additionally, pictographic evidence survives of bearings used in certain hand tools of the same time.

The oldest – circa 40AD – surviving example of a functioning bearing dates to early Roman times: a ball bearing used in a rotating table salvaged from the wreckage of an ancient ship found in Lake Nemi, Italy. The design of this bearing shows enough skill that it is suspected ball bearings were in wide use for a number of applications during Roman times.

Ball bearings were widely copied and the technology distributed in the following centuries, but the next great innovation in bearing design would have to wait for nearly a thousand years, emerging from the workshop of the master – Leonardo da Vinci. Around the year 1500 da Vinci illustrated what would come to be known as the roller bearing, and further innovations were more rapid. In the 1600s the famed scientist Galileo published specifications for the caged ball bearing, which greatly reduced erosion due to friction.

Galileo's caged bearing was improved on in the mid 18th century by John Harrison, who expanded on that design to create the first caged roller bearing, used in a novel timepiece. Harrison was able to design caged roller bearings that were able to conduct both oscillating and rotary motion, and his innovations marked an explosion of growth in bearing technology.

The evolution of modern bearings was advanced further in 1794, when Philip Vaughan patented the first mounted bearings set within a raceway. A patent for bearings in 1869 by Jules Suriray powered the winning bicycle in the inaugural Paris-to-Rouen road race just three months later. The stage was now set for mass production, and in 1883 Friedrich Fischer was the first inventor to design a process for milling ball bearings of consistent size, roundness, and performance – this was the dawn of the modern bearing industry.

Some of the major players in the bearing industry were founded at this time:

FAG Bearings, 1890
Timken Bearings, 1899
SKF Bearings, 1907
NSK Bearings, 1916
NTN Bearings, 1918
NACHI Bearings, 1928
Rexnord Bearings, 1934

These companies provided the energy & technical know-how that allowed modern bearing innovations. Robert Schroeder of Pacific Bearing invented the composite plain bearing, which could be substituted for any linear ball bearing. The design featured an aluminum or steel interior coated with a thin layer of teflon, and these bearings marked a notable advance in performance and reliability. The newest generation of bearings include electromagnetic elements that deliver even greater performance.

Traditional & Modern Uses of Bearings
Plain bearings were originally designed for use in hauling heavy loads directly, or as a component of wheels & axles. Since then, bearings have proliferated into nearly every aspect of life. Of course they continue to be used in machinery and vehicles that use wheels or rollers to operate. They are found in tiny devices that require precision – watches, tools, instruments and the like. They are found in furniture, children's toys, entertainment devices – the list of industries that benefit from bearings is almost endless: electronics, aerospace, aviation, construction, manufacturing, agriculture, entertainment, and so much more.

Bearings have even led the way into realms far beyond the Earth, in satellites that spin in orbit, the instruments aboard sophisticated probes like the Voyager series, and the motor & wheels that power the Mars Rover. Bearings have traveled far beyond our imaginations, and will continue to do so for centuries to come.

World Demand for Bearings
Since mass production began at the beginning of the 20th century, global demand for bearings has been insatiable. Bearing production is recognized as a key component of every modernized economy, fueling growth in production, jobs, and revenues. Countries that are net bearing exporters can expect to remain atop global economic rankings for the foreseeable future.

As new markets emerge – Central Europe, Southeast Asia, West Africa, South America – and older markets continue to develop & become more sophisticated – China, Russia, Brazil, India – the demand for quality bearings will only grow, and the need for new technologies to further refine bearing technology will become more pronounced. These markets will continue to power steady demand for bearings, and some will become bearings exporters themselves and lead a new wave of growth.

Counterfeit Bearings
Counterfeit bearings are a persistent problem affecting businesses all around the world, and engineers are constantly under pressure to identify them before fitting. Counterfeit ball bearings can have disastrous consequences on quality and safety, and yearly losses worldwide run into the billions of dollars.

When heavy or high-speed equipment suffers a bearing failure, the results can be catastrophic – damage to the primary machinery, damage to nearby equipment, injury to workers, lost time, and more. Counterfeit bearings are much more likely to suffer a failure... in many cases, counterfeit bearings have been known to fail less than an hour after fitting.

Counterfeit bearings can be extremely difficult to detect, and may take one of several forms:

Exact copies of genuine bearings, include factory markings and branding.
Used bearings that are re-conditioned and passed off as new.
Substandard bearings that have been polished and machined to look acceptable.
Bearings mislabeled with higher tolerances or altered clearance.

After market vendors are a common point of entry for counterfeit bearings – these businesses are generally not sophisticated enough to recognize fakes, or may not care if price is their primary consideration.

The most effective solution is to make certain that you purchase bearings only from a know source... anything less, and it is only a matter of time until you suffer a disaster that costs you time, money, and potential injury.

Dodge bearings
Fafnir bearings
FAG bearings
INA bearings
Link Belt bearings
Nachi bearings
NSK bearings
NTN bearings
Rexnord bearings
SealMaster bearings
SKF bearings
Surplus bearings
Timken bearings
and many more

Finding Best Providers and Suppliers for Old and New Bearings
There have been huge demands for exclusive branded bearings across the world. the demands have increased in recent years and branded products such as NSK bearings, Surplus bearings and Nachi bearings are working similar to the other companies to meet up to the demands. Most of the reputed companies supply their products and services to foreign countries.

To be precise, branded companies have their products sold to in the international markets. Certain companies provide and sell their products in over 150 countries worldwide. However, companies are trying to meet up to the demands of the international consumers. Here we have three internationally reputed companies and their offerings for the users. One among them is not a manufacturer but you can find all the old model bearings that are not available anywhere else in the world.

Nachi Bearings: The Nachi-Fujikoshi Corp. manufactures the products under this brand. The company produces many types of ball bearings for their international customers. The main product of the company is the thrust ball bearings. These are specially designed to handle the axial loads only and not any other loads. These incorporates of balls, both shaft and housing washers that include grooves for the ball and retainer. Next type is the double direction thrust ball bearings what can handle bi-directional loads. Similarly, the company is specialized in making ball bearings and is popular across the world for the quality and endurance of their product. Nachi bearings make the single direction, double direction and double direction thrust angular contact ball bearings.

Surplus Bearings: An Australian based company specializes and deals with all types of bearings. The company is specialized in purchasing the surplus bearing stock from more than 750 suppliers around the world and stocks over 10,000 of them in their shelves. It is one of those companies that have an extensive library for old products, reference materials and catalogues.

Therefore, if your supplier does not have a specific bearing, you can find it here. The team inspects all the bearings before selling them to a user. The products are checked for any contamination or dirt, which might have occurred due to handling it previously. Such bearings are washed in a filtered flushing system until they are ensured clean. Later, the same are checked in the next stage for any cage or rolling damage. Total care is given to store them safely to make sure the customers are happy with it.

NSK Bearings: The Company is considered the first Japanese company to conduct various researches on the manufacturing of bearings in Japan. The company follows strict effective management mode and has the world’s best research capability to develop and manufacture high quality products for their global customers. The cutting edge technology used by NSK bearings have made the company one of the best bearings brands in the global market. All the achievements in product manufacture and services have been achieved by intensification of the research and development sector. These strategies have helped the company to create the best bearings in the world and have created a global market for itself.
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