tapered roller bearings from hydra seals hose & bearings limited

5 Industries That Use Tapered Roller Bearings

5 Industries That Use Tapered Roller Bearings

One of the benefits of using Tapered or roller bearings is the ability to take heavy axial loads and can withstand radial forces in use with various machine types. They roller bearings can be found in many vehicles, as they are known to balance moving forces. They come in various forms and sizes and are compatible to various machineries that one could think of.

We could class roller bearings into one of four main types;

  • Single row tapered roller bearings
  • Matched single row tapered roller bearings
  • Double row tapered roller bearings
  • Four-row tapered roller bearings

Each one of these bearings have a specific application and are specific to various types of industry. The most common tapered bearing would be the single row tapered roller bearing and the double row tapered roller bearing. The tapered roller bearings are found in daily use in vehicles and moving machineries.

Tapered roller bearings popularity is due to the fact that they are easy to disassemble, and remove from machinery, so maintenance down time in minimised in highly dependable environments, such as food production. Designed to take both axial and radial loads in one direction simultaneously. Double row tapered roller bearings are another stronger bout of bearings which have the capacity to move axial and radial forces in two directions making it imperative for the machines with high turning torques.

The most common applications for tapered roller bearings:.

  1. Tapered roller bearings are found in gear boxes in vehicles, especially in heavier trucks, in lathe spindles etc. where the axial and radial forces combine together to run the machine.
  2. Roller bearings are used in the mining industry to aid lifting equipment.
  3. Taper roller bearings are also used in axle systems of machines and vehicles to ensure a good performance of the concerned machine.
  4. Vehicular and plant/machinery engines have parts that utilise taper roller bearings.
  5. The Aviation industry used taper roller bearings in aircraft and helicopter transmissions. They are also used in aircraft fuel pumps.

If you have any requirements for roller bearings, or need assistance on measuring a roller bearing to replace in a particular machine or vehicle, do not hesitate to contact hydra seals via our contact page, or pop in to our trade counter and we’ll assist in measuring and fitting a high quality replacement ball bearing or roller bearing.


Where are Industrial Seals Most Commonly used?

Top 8 Industries where Industrial Seals are most commonly used?

The main purpose of an industrial seal is to seal the opening between a static and rotating component. It is vital to use high performance seals for improving the efficiency of equipment. The following are 10 top industries which use hydraulic, pneumatic seals or a combination of both.

  1. Farm Machinery & Agricultural Plant

During agricultural harvesting seasons, agri-machinery needs to perform with optimal efficiency. Machinery used outdoors, such as ploughing equipment, tractors, harvesters etc, all face exposure to the weather elements, and with the Irish and UK climates consistent flooding, numerous storms and generally damp conditions, frequent contamination from the surroundings erode both hydraulic hose, hose fittings, bearings and other parts of the machiners. There is a constant need to repair and maintain farm equipment, the use of high performance seals, play an important role in productivity and lowering expenses. Farm implements use single acting hydraulic seals on harvesting, threshing, baling, drainage and on crop harvesting machinery.

  1. Amusement Machines

Amusment machines, such as roller costers and other attractions at funfares, including some of the rides at Tayto Park for example, would require hydraulic seals and other parts to keep running. Imagine how much would be lost if a major amusement ride broke down for a day. When the seal fails in the brake system, it can leak brake fluid, forcing a shutting down of the ride for repairs. Not to mention the cleanup afterwards.

  1. Auto Industry

Almost every vehicle assembly department uses pneumatic rams on assembly jigs. Engineers prefer pneumatics as they are quieter and cleaner, which can prevent any leakage from contaminating its surroundings. Sound absorbing materials such as polyurethane and rubber are effective in achieving significant compressed air savings.

  1. Cheese Manufacturers

Ireland has a long tradition for quality farming, and cheese making in itself is a niche of the agri-industry. There is also a trend to consume more homegrown / organic grubsteaks, and apart from the major dairys of the Mitchelstown Cheese Factory (Dairygold), there is a plethora of small businesses manufacturing in the niche, This machinery generally uses Pneumatic seals, spring energized seals, wipers and guide rings are used on manufacturing and packaging machines in the cheese industry.

  1. Coal Mining Equipment

Coal mining is still carried out in various parts of the world, and hydraulics are used extensively in the underground mining machinery, while pneumatics are used on roof support machinery. Essential to the mining industry is safety and the use of high performance parts to provide extraordinary service life so that downtime and maintenance is kept to a minimum.

  1. Concrete Pumping

Concrete pump designers face many challenges because concrete is heavy, viscous, abrasive, contains pieces of hard rock and solidifies if not kept moving. One of the causes of dangerous blockages can be attributed to improper setting up of the pump system, and requires specialised sealing and proper guide element replacement when the seals are replaced.

  1. Earth-Movers & Excavators

High performance oil seals and hydraulic seal kits are required for heavy earthmoving, excavators, dozers and backhoe loaders. The mining and construction industry is the heaviest user of high performance seals and reliable wiper seals.

8 Printers

Some may say printing is a dying trade, but with Newspapers and Printed books still in demand, and 4% of marketing budgets being pumped into traditional printed marketing, such as flyers and business cards, the demands of the fast-paced publishing industry benefits immensely from machine parts manufactured with high performance polyurethanes and rubber materials to allow for greater speeds and higher productivity.

Rolling Element Bearings

In this post we are discussing the different types of roller element bearings.

This article discusses 5 types of rolling element bearings. In a previous article, we discussed the basic individual elements of a ball bearing where, and how they we manufactured, but just to recap, ball bearings are used in just about everything… from gearboxes and engines down to go-cars, skateboards and roller skates. We discussed the elements such as the bearing, the raceway and the cage.

Rolling element bearings are basically bearings which can roll on one or two more axis, either shaped into spherical balls or cylinders, which roll along a raceway. The load is placed on the bearings and the raceway and lubrication assists in keeping the joint moving and transferring the power.

Dunlop Bearings, taper roller bearings

The first type of roller bearing is the simple ball bearing. Ball bearings are perfectly round and placed in between the bearing race or raceway. The ball bearings round nature means it can move on any axis, therefore provides much flexibility when required.

Cylindrical bearings or cylindrical roller bearings, are shaped into cylinders, much like a can of lemonade. These bearings will only roll on one axis – back and forward. They are also placed within the bearings raceway. Spherical roller bearings are very similar, but have a rounded part in the mid section. Needle roller bearings are also similar, but the pins are rolled much longer and therefore have a needle like appearance. These needle bearings provide cover to the the entire surface of the raceway.

Tapered roller bearings are slightly different, While the bearings are in a cylindrical fashion, there is a taper on them, which gives them the cone-shape appearance. These enable for a diagonal planar movement. These bearings can withstand both radial and axial loading.

Roller bearing elements undergo a lubrication process known as elastohydrodynamic lubrication. This process involves the oil under the bearing becoming almost solid-like, and elasticates the bearing element for a moment. It’s vital to ensure the correct lubricant is used and that there are no contaminates in the system. In a previous article, on “5 reasons for bearing failure“, we discussed reasons for bearing failure and causes for manufacturing lines to be shut down. Please ensure that the environment is clean, bearings and fluid are designed to operate with the temperatures and humidity of the environment.

For all your bearing needs, please contact Hydra Seals, Hose & Bearings through our contact page or via phone on +353 1 8612700.

Dunlop Bearings, taper roller bearings

Dunlop Bearings Now In Stock

As you may know Hydra Seals are now premier distributors of the entire Dunlop Bearings range! They have several ranges to choose from including plain bearings, Spherical Bearings and ball joints, as weel as angular contact bearings. Here’s a quick reference to how bearings work.

Dunlop Plain Bearings (sliding friction)

Hydra Seals & Dunlop Bearings Plain, rod end, spherical bearings and ball joints

For plain bearings, sliding friction occurs when two surfaces, generally separated by a third medium such as PTFE, bronze, nylon or lubricant, move relative to each other.

Specific pressure is determined by the strength of materials selected, this historical principle is used for all types of plain bearings in their various applications.

The main advantage of plain bearings lies in their design and structure, they are frequently used in maintenance-free designs and require less space in a machines design. Dunlop bearings brand offer both quality and reliability.

Dunlop Rolling Bearings (rolling friction)

Angular contact bearings, self-aligning, thrust, cylindrical, taper, spherical bearings and bearing units from Dunlop

Rolling bearings work with the principle of rolling friction, the applied load is transmitted by rolling elements, rotating around and between two bearing rings, normally guided by ring raceways grooves. Usually the rolling elements are positioned within the bearing by separators, also termed retainers or cages. As described for plain bearings, rolling bearings also require lubricant separation of the metallic parts.

This, along with a good surface finish, ensures smooth running surfaces and reduces friction from the transmitted forces, resulting in minimal power loss. The principle distinction between rolling element bearings and their initial bearing description is generally classified solely due to the rolling element shape (e.g. ball or roller etc)

Watch this video to find out how tapered roller bearing work – as used in Agricultural machinery…

The differences between ball and roller bearings are also considered in the calculation formula for rolling bearings. Please contact us via our contact page for any information you might have about our range of DunlopBTL bearings.

ball bearings and ball bearing manufacturing

Ball Bearing Manufacturing Process

The Ball Bearing Manufacturing Process

The function of a Ball bearing is used to reduce rotational friction of a moving part. Bearings move along an area called raceways or races. One race is at rest in most of the cases and the second one is attached with rotating hub. When one of the bearings moves it also causes the balls to rotate along its rotation, as the ball bearings are rolling so they have very little friction, as compared to the situation when two flat bodies move on each other’s surface. This article will discuss the ball bearing manufacturing process. Here is a good guide on howstuffworks.com on how ball bearings function.

Ball bearings are used in many machines which we use everyday. Items such as fans, wheels, motors and even skateboards all contain bearings. The bearing is used to support rotatory parts of machines to enable smooth rotation. There are different kinds of ball bearings, with different sizes, due to the different machines they would be used in. Ball bearings are generally made from chrome steel mix

  • Linear Rails & Shafting’s
  • Linear Slides
  • Linear Bearings
  • Radial Spherical Bearings
  • Cam Follower Bearings
  • Needle Roller Bearings
  • Thrust Ball Bearings
  • Spherical Roller Bearings & Radial Spherical Ball Bearings
  • Tapered Roller Bearings
  • Cylindrical Roller Bearings
  • Angular Contact Ball Bearings
  • Self-Aligning Ball Bearings
  • Deep Groove Ball Bearings

To view our entire range of bearings and bearing blocks, they are listed on our bearings page – click here.

Ball bearing components:

Ball bearings consist of four main parts:

  • Outer Ring: Large ring situated outside.
  • Inner Ring: It is a small ring situated inside.
  • Steel balls: The balls between the two rings made up of steel.
  • A cage: There is a cage to prevent the balls hitting with each other.

Manufacturing Process:

Ball Bearing Manufacturing – Cutting:

The first step of the manufacturing process is cutting. Cutting machines are used to cut and shape the material into rings.

Ball Bearing Manufacturing – Heat treatment:

Heating process is used to increase the life and durability of ring shaped metals.

Ball Bearing Manufacturing – Grinding:

The parts need to be ground into shape and polished, and for this purpose small stones and a lubricant are used to the required dimensions, such as the outer and inner diameters and the width are ground to micrometer (one-thousandth of a millimeter) precision, as is the groove, a key internal structure formed between the inner and outer rings in which balls run.

Ball Bearing Manufacturing – Bearing Assembly Process:

The inner and outer rings, balls and cage; also known as a retainer, are assembled. Depending on the application of ball bearing lubricant like grease or oil is applied. After the lubrication process the ball bearings are covered with shields. This is the process in which parts are assembled according to customer needs.

In short ball bearings have to reduce the friction and they can be ranked quality wise, it depends on how much a ball bearing can reduce friction. The more it reduces friction the more it is better in quality. Another quality issue is durability. We will discuss the merits of good quality and not so good quality bearings in a future post.

Here is a good video on how ball bearings are manufactured. Originally screened on the Discovery Channel.

Hydra Seals Hose & Bearings are a distributor of high quality bearings from Dunlop BTL and all other major brands. Contact us on 01 8612700 or drop us a line on our contact page.

HydraSeals Appointed Authorised Distributor for Dunlop BTL in Ireland


Hydra Seals are now authorised distributors for Dunlop BTL in Ireland.

A brand you can trust

As an authorised distributor of the full Dunlop product range we are committed to offering all of our customers not only the widest range of quality products, but a world class quality service that you would expect from a global brand.
When purchasing any Dunlop product you can be assured that only materials of the highest quality with full production traceability have been used, and have been produced responsibly by a manufacturer with the expectations and demands of its customers foremost in mind.

Largest range, from power transmission via vee belts, chain and Ball Bearings in Europe

Dunlop’s product range and stock holding is now one of the largest found anywhere in Europe,
stocked in Ireland, and available for immediate despatch or collection. Our fully trained, dedicated and friendly staff are waiting to provide you with any help you may need to make your selection. If you require specialist advice a Dunlop representative is available, simply contact our sales team and an appointment can be arranged for you. Many of the world’s most prestigious original equipment manufacturers in the automotive, agricultural, industrial & recreational sectors now rely on Dunlop for high end quality belt, chain, bearings and other power transmission products.

Click on the image to download the info sheet.





















Download Dunlop BTL Flyer here…



5 Reasons For Bearing Failure

5 Reasons Why Bearings Fail.

Yes, things break. Just the other day, we dropped into a local coffee shop and they had a maintenance guy onsite repairing one of their dispensing machines, in the middle of a busy lunch schedule. What a time for something to break down… but it happens. It got me thinking about the nature of things, computers and network systems for example, something I am all too familiar with as an experienced computer network techie that I am. It gave me inspiration to put this quick list together for you regarding the failure of bearings.  I set about thinking of ten reasons why ball bearings fail.

  1. Lubrication Failure:

Probably the most common cause of bearing failure. Insufficient lubrication, use of incorrect lubricant or excessive temperatures. We mentioned excessive on our previous update in relation to hydraulic seal failure. Excessive running temperatures degrade the lubricant. You should see discolouring of the roller element in the bearing, this is a sign of excessive wear. This is counteracted or prevented by ensuring the correct lubricant or grease is used and make sure there is no grease loss. This should eliminate premature bearing failure.

  1. Contamination:

Caused by foreign particles getting into the system – such as dirt and dust or workplace waste. This causes denting of the rolling elements, which results in vibration. Lubricants should be filtered and work areas and tools kept clean.

  1. Improper mounting.

This is an obvious one. You notice that bearings are mounted on a rotating ring, and are done on a press-fit. If the bearing wasn’t manufactured properly, the bearings will vibrate with the result being denting, wear, cracked rings, high operating temperatures, early fatigue and eventually premature bearing failure. Proper mounting instructions should be followed when the bearing in placed in situ as a prevention to bearing failure.

  1. Bearing Misalignment

Bent shafts can cause misalignment, and the result is similar to improper mounting above. Other causes could be improper installation or the press-fit mechanism was off calibration. You should notice a wear path that is not central or uniform. Inspect the shafts and housings and use good locknuts.

  1. Bearing Corrosion

In our climate in Ireland, the moisture and condensation in the air can cause corrosion, as well as low quality lubricants and greases, lack of replacing certain parts leading to rubbing of the bearing. Red or brown stains on the raceway or bearings will indicate this. This abrasion will cause wear to the required smooth surface of the ball bearing.  If you can get sealed bearings, this will help avail the problem of bearing corrosion, and try to get bearings made from stainless steel.

Feel free to comment with feedback or suggestions of worn bearings… even better, send your images of broken or worn bearings… we’d love to feature in one of our future updates. Contact Hydra Seals on via our contact page or call +353 1 8612700 for all your ball bearing and bearing lubricant requirements.

All the best,



XMVB Bearings on special offer


We have a special offer on our XMVB bearings. Stock is quite limited. This offer is only available to partnes on our email list, so please be sure to subscribe to our email newsletter list. We only sent about one or two emails per month. This month, our specials cover the 6200 through to the 6210s and the 6300 to the 6312 bearings ranges.