Tag Archives: oil seal manufacturer

Types of Transmission Oil Seals: Static and Dynamic

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There are two main types of oil seal: static and dynamic. A static oil seal fits between two non-moving parts, a dynamic oil seal between a stationary part and a moving one. Most oil seals are made of synthetic rubber.

 

An example of a static seal is a simple ‘O’ ring. These seals can be found in such places as the oil filter used on combined automatic gearbox and engine units, on conventional gearbox front covers and in automatic gearboxes.

 

Dynamic seals are more complex in shape, with one or two lips, depending on where they are situated. These transmission oil seals are widely used in the transmission system of both front and rear-wheel-drive cars, where oil must be sealed in where a rotating shaft passes through a component. For example, at the outer end of a half shaft and on the differential pinion.

 

Types of Oil Seals

Dynamic seals also contain a thin coiled spring, called a ‘garter spring’, which holds the sealing lip in contact with the revolving shaft.

 

Many seals have a metal outer casing for added strength and ease of fitting. Because the seal is in constant contact with a moving part, dynamic seals eventually wear and begin to leak, and both dynamic and static seals deteriorate with age.

 

Most seals are inexpensive and easy to replace, but many are in places where you must do a lot of dismantling to get at them.

 

For example, gearbox oil seals (apart from the extension-housing seal on rear-wheel-drive cars) can be replaced only with the gearbox removed – a task best left to a garage.

 

However, the seals on the rear axle and final drive should all be possible to replace fairly easily, although special tools may be necessary.

 

After many miles and several new seals, the moving part against which the dynamic seal fits may wear.

 

Slight wear can sometimes be taken up by fitting a shim between the seal and its housing, to change the point of contact. But if a shaft becomes seriously grooved it must be replaced or repaired at a garage or engineering machine shop.

 

This is not a common occurrence, but any point at which a shaft rotates in a seal is a possible leak source. Check such points regularly.

 

When fitting and handling any oil seal, keep it and its sealing point absolutely free from dirt and grit. Make sure you fit the seal the right way round. The lip (or lips) always faces the oil it is sealing.

 

To get more information of transmission oil seals, I sincerely recommend you to visit ASA Oil Seals Co., Ltd. – they are the professional oil seal manufacturer in the industry. If you need much more choice of oil seals, please contact with ASA immediately!

 

Article Source: https://www.howacarworks.com/transmission/replacing-transmission-oil-seals

Oil Seals: The Mark of a Well Oiled Machine

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While they are often called many different names, oil seals, grease seals, fluid seals, and dirt seals all accomplish the same task: they have the very important job of closing the spaces between stationary and moving parts in all kinds of mechanical equipment. For everything from automotive, industrial, and agricultural equipment to manufacturing equipment and machine tools – oil and grease seals are an absolute necessity in the modern world when it comes to attaining the level of performance and efficiency that helps provide us with the many vehicles, products, and services we benefit from every day.

 

The very vital components of all kinds of bearings, from angular contact bearings to cylindrical roller bearings are all protected by oil seals, to keep their precisely constructed assemblies safe and reliable at all times – in even some of the harshest applications.

 

In addition to actually closing the spaces and gaps in various machines, tools, and vehicles, grease seals also provide critical protection against harmful contamination. With the help of oil seals, what needs to stay in the machine (such as lubrication) does so, and what needs to stay out of the machine (dirt, debris, and other contaminants) is kept away from its hardworking and often-delicate parts and components.

 

Simultaneously and specifically in the case of machine tools and machine components, oil seals do much more than prevent the ingress of abrasives, moisture, and contaminants. They also ensure that various liquids do not mix together, such as oil based lubricants and water.

 

There are many grease oil seal designs engineered specifically to meet the needs of various industries. While it might seem like “a seal’s a seal” the actual design, materials, and configuration used can make a significant difference in certain applications. For example, some seal types are engineered to eliminate torque and friction, this enables the seal to move with the bearings and the other machine components while simultaneously protecting against contamination. Other seal varieties are engineered with greater efficiency in mind. Regardless of the requirement, the industrial world has come up with a number of designs and concepts to deliver the performance needed for virtually every application. Some of these seal types include:

 

  • Light duty deals
  • Heavy duty seals
  • O-ring seals
  • V-seals
  • Labyrinth seals
  • Multiple lip seals
  • And more…

 

Whether you’ve ever even considered oil and grease seals before. They have undoubtedly affected your life and the things you use every day. So next time you think about how all the things surrounding you are manufactured – consider the impact of one tiny component: the oil seal.

 

Lian Yu specializes in the design, production and distribution of oil seals and special seals for vehicle and mechanical applications. Our product lines include bus oil seals, oil bath seals, industrial oil seals, special seal, rubber seals, vehicle oil seals, etc. If you have any interest or question, please do not hesitate to contact Lian Yu Oil Seals.

 

Article Source: http://EzineArticles.com/6909477