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Home » Featured News » Sealed Bearings Clean And Cost Efficient

Sealed Bearings Clean And Cost Efficient

Lancashire Gazette by Lancashire Gazette
February 3, 2023
in Featured News
Reading Time: 4 mins read
Sealed Bearings Clean And Cost Efficient
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Sealed spherical roller bearings help save space, money and also the environment. These are attractive features in a highly competitive market.Seals on spherical roller bearings can open new applications for this kind of bearing. In the future, seal bearings market could be a substantial portion of the market total for Spherical roller bearings.

Sealed Spherical roller bearings are designed to handle heavy load and huge misalignments and provide effective protection against dirt and same time keep the lubrication.

The sealing provides a range of characteristics:

The bearing is protected from external contaminants.
Lubricant remains in the correct position. This means that the bearings will be kept lubricated throughout their lifetime or the interval for relubrication is extended.
Easier handling. The bearing is shielded from dirt during the process of mounting.
Space savings. External sealing is a way to save space.

The seals are designed that have two lip seals: one lip on the outside that blocks large particles and an internal one that is the one that makes the seal. This allows for a strong seal and longer service life. Additionally when bearings are larger, the seals are easy to take off, allowing for examination of the bearing, and should it be necessary, changing the seals.

This is a combination of the latest bearing design technology , such as self-guiding rollers, sturdy steel cages and a floating guide ring to make the most efficient spherical roller bearings , when they come to capacity for load and friction, as well as life. Sealed spherical roller bearings are able to also handle misalignment issues this can allow for the proper distribution of loads even when the machine shaft is disaligned.

For Ifor Williams sealed bearing head on over to trailertek.com

When this new product was tested to perform, it has been successful. This bearing was tested in the lab as well as in actual conditions, and we’re conducting further extensive lab testing to ensure that it meets future market requirements. While the bearing has met its initial performance specifications however, the capabilities of it are greater.

The results of all tests show that the bearing’s performance exceeds expectations in the areas where they’ve been tested. With the knowledge gained by these test results, it’ll be possible to recommend the bearing to be used in tougher operating conditions, and pave the way for the development of new applications.

Space saving

A bearing that has integral seals will take up less space than those that has external seals. This small solution offers obvious advantages, including weight and space savings which the end-user can always quantify in terms of savings in terms of money. An excellent example can be found in robotics. In the event of replacing the old bearing arrangement by a sealed spherical bearing, the robotic bearing arrangement’s width is cut by half. This will reduce the overall size of the robot arm, and the end user is able to put the robot in smaller areas. It is also an economical solution. Cleanliness isn’t essential while the bearing is installed. Additionally the bearing doesn’t require lubrication, which provides savings when it comes to maintenance.

Simple mounting

With seals built inside the bearings, it’s more affordable to install and place bearings. The manufacturer of Jacquard weaving looms, which is a kind which produces top-quality cloth, has embraced this approach. This sealed bearing ideal for the high-shock loads as well as the slow speeds needed for this type of textile.

The machining operations inside the housing to allow for separate seals are no longer required and the complex mounting procedures for seals are removed. Furthermore the bearing is protected from the entry of dirt when it is mounted and the initial lubrication is already available. In most instances there is no need for relubrication to operate these looms. If needed, relubrication could be offered by using the feature W33.

Environment-friendly

For trams, sealed bearings are employed to provide an eco-friendly option. The vehicles are subject to frequent stops, and begin at a moderate speed. In this case the ratio C/P (the ratio of the basic loading rating for dynamic loads to the equivalent loading of a dynamic bearing) is approximately 10. The reason for switching the bearings to sealable ones was to decrease the leakage of oil through seals on the outside. Before, oil-lubricated bearings were utilized in which the same oil was used to lubricate both the bearings as well as the gearbox. When a bearing is sealed, this bearing gets lubricated using grease, and the seals on the bearing offer additional protection. This means that significantly less oil will be released.

Protection from dirt

One of the places where the seal’s protective properties are utilized is in the steel production process. Seals for spherical roller bearings with a spherical been used successfully to continuous casting equipment as well as roller tables. In casting casters, molten iron is converted into slabs, sheet iron or billets. Bearings are utilized for support rollers in the conveyor system, and are subjected to continuous streams of water that are mixed with salts and contaminants. In this case the temperature that affects the bearings can range between 20 and 180 degrees Celsius. Support roll speeds typically range in the range of 2 to 10 r/min, with a an average C/P ratio of under one.

Traditional seals on the outside aren’t enough to block the ingress of steam and scale. The previous method was to constantly grease the bearings in order to shield the bearings from dirt. This demands a massive amount of the lubricant. A single slabcaster can consume as much as 50 tonnes of grease each year. When spherical bearings are sealed the amount of grease consumed can be reduced by a significant amount. The sealed bearing doesn’t need to be lubricated, while the seal on the outside is occasionally lubricated.

In the real world this means that the usage of grease can be reduced down to just a couple of tonnes annually. As well as the reduced use of lubricant, which produces savings, even larger savings are to be gained through eliminating the need to deal with the lubricant-contaminated wastewater. A further benefit is the ability maintain the cooling systems in good order. This means that any part which require cooling are kept cool. This means that the number of break-outs, where the steel casting cracks open and liquid steel leaks out, is decreased significantly.

Sealed Spherical Roller Bearings are available in two versions that are suitable for temperatures of up to 110 degrees Celsius and another that is designed for applications with high temperatures that can reach 180 degrees Celsius. The bearing can be fitted with a variety of seal and lubricant materials. The selection includes bearings that can be used for shaft diameters from 40 mm to 220 millimeters.

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