How do rubber seals manufacturers choose oil seal for a different car model?

How do rubber seals manufacturers choose oil seal for a different car model?


Checklist for rubber seals manufacturers to avoid car seal leaking issues

rubber seals manufacturers

Rubber seals manufacturers explain function of oil seals

Rubber seals manufacturers make oil seal that prevents oil leaks. It is an item that prevents not only oil but also water and chemicals from leaking. Moreover, it also prevents the intrusion of dust from the outside.

The environment in which the oil seal is used is a combination of various factors. So it is important to choose one that matches the size of the chitin.

What is an oil seal?

An oil seal is a device that is used in a car to seal joints of various parts. And rotating shafts, operating on the principle of reciprocating movements.

The main function they perform is the complete sealing of the joints of fixed or moving surfaces.

In simple words, they seal the shafts and the “walls” of their housings, preventing the lubricating fluid from leaking out.

Where rubber seals manufacturers use oil seals?

rubber seals manufacturers make Oil seals in a car for its power unit. So, in each engine there are two such parts in the crankshaft. And in those models where a rubber toothed belt is used, also in the shafts that exit the engine.

Generally, in the motor of a car there are the following types of similar devices:

  • Front for crankshaft;
  • Rear for crankshaft;
  • For the balancer;
  • For oil pump.

All of them must be made with heat-resistant material. Since as a result of the rapid rotation of the parts, the glands are heated. If rubber seals manufacturers make them ordinary non-heat-resistant substance. They will burn and complete destruction.

What is hub seal?

It is another type of automobile oil seals. Which for the high-quality performance of their functions must have a special design. Such a unit must have high strength and a special design. Be reinforced, have additional edges of protection against dust and dirt. The penetration of the details of which leads to the rapid destruction of the gland.

How do rubber seals manufacturers select and replace oil seals?

One of the main features that distinguishes such details is their cost. It is quite low. But at the same time, replacing this automotive part is much more expensive compared to its cost.

It has its own characteristics and the choice of gland. For normal operation, you should buy for the car exactly the spare part that is suitable for a particular model. In addition, it is not recommended to put on foreign cars spare parts of domestic production. Rubber seals manufacturers give same suggestion.

How do rubber seals manufacturers choose oil seal for a different car model?

If it is not possible to find the required part for a specific vehicle model. Then when choosing a new oil seal should have a smaller width than required. No problems with installation and use should arise. But the node with a larger width does not fit.

PTFE seals manufacturers

If rubber seals manufacturers choose a model for such a part without cutting and anther on the working surface. It will not last more than 30 thousand kilometers.

The boot prevents the penetration of dirt into the oil seal. Cutting ensures that excess oil is thrown back into the crankcase. In the absence of such additional devices, the seal life is significantly reduced.

What are the replacement features of oil seals?

There is one important feature in the replacement of this spare part. Considerable wear from the edge of the old one may be present on the motor shaft. Where the rubber seals manufacturers install new oil seal.

In this case, the part should be selected so that its edge is slightly offset from the original. You can also install a new part with a spacer ring. Which will provide an edge shift relative to the previous position.

When there is strong bearing wear in the motor shaft. It is advisable to choose oil seals with oil-bearing risks when replacing. In this case, the part will last much longer than when choosing a spare part without such a device.

First, the basic concept of mechanical sealing

Mechanical sealing refers to preventing fluid leakage. Caused by at least one pair of end surfaces perpendicular to the axis of rotation.

A mechanism for compensating elastic force under the action of mechanical sealing and auxiliary sealing.  With installation the auxiliary seal of the compensation ring is a metal bellows mechanical seal called a bellows.

How do rubber seals manufacturers make mechanical seal?

Mechanical seals mainly consist of the following four types of components.

  • the main seal
  • movable ring and static ring.
  • Auxiliary seal
  • O-ring.
  • pressing parts: spring, pressure ring.
  • transmission parts: magazine seat and key or fixed screw.

o ring suppliers

rubber seals manufacturers should pay attention to the problem

1, installation precautions

a, pay great attention to avoid installation deviations caused by installation

  • rubber seals manufacturers should performthe upper pressure seal after alignment of the coupling. The bolts must be evenly fastened to prevent skewing of the gland end. Check the points with a stylus. The error is not more than 0.05 mm.


(2) Check the seating clearance between the oil seal and the outer diameter of the shaft or sleeve. The circumference should be uniform. Check the tolerance of each point with a feeler gauge so that it is not more than 0.01 mm.

  1. rubber seals manufacturers must carry the compression ratio of the spring in accordance with the rules. It cannot be too large or too small. And the required error is 2.00 mm. An end is pressed over the assembly. And the other end is worn. Too small will lead to insufficient specific pressure and will not seal.

After installing the movable ring, it should be able to flexibly move on the shaft. After pressing the movable ring to the spring, it should automatically bounce back.

What are the disassembly precautions for rubber seals manufacturers?

Be careful when disassembling the mechanical seal. Do not use a hand hammer and flat shovel to avoid damage to the seal components. A pair of wire hooks can be made.

And rubber seals manufacturers pull sealing device in the direction of self-sustaining gains. Similarly, it losses in the gap of the transmission seat. If the balance is not removed, it must be cleaned before disassembly.

  1. If mechanical seals are used at both ends of the pump. Take care of each other during assembly and disassembly to prevent loss.
What to do for a triggered mechanical seal?

For a triggered mechanical seal, rubber seals manufacturers should replace the static and dynamic parts of the ring. Moreover, should not be retightened for future use.

Because after turbulence, the initial trajectory of the friction pair will change. And the contact surface seal will be easily destroyed.

How to check car rubber sealing issues?
  1. Preparation and precautions before starting

(1) rubber seals manufacturers should carefully check the mechanical seal to see if the fixtures and piping are installed correctly.

(3) Press the pump to rotate the disc to make sure it is light and even. If the car is struggling, check the assembly size and installation.

(2) For a mechanical seal using an external pump seal system. The oil seal system must first be activated. Finally stop the oil seal system after parking.

(3) After the hot oil pump has stopped, the cooling water of the oil seal chamber. And the mechanical seal cannot be stopped immediately.

Checklist for rubber seals manufacturers to avoid car seal leaking issues

(1) If there is a slight leak after starting the pump, rubber seals manufacturers should observe for a while. If the leakage still does not decrease after 4 hours of continuous operation, the pump must be stopped.

(2) The operating pressure of the pump must be stable,

(3) Vacuuming should be avoided during pump operation to avoid dry friction

(4) The seal should be checked frequently