German elaflex seals elaflex models elaflex prices

elaflex seals are the customary term for general seals; simply put, they are seals for lubricating oil. They are mechanical components used to seal grease (oil is the most common liquid in transmission systems, and the term also refers to general liquids). They isolate lubricated parts in transmission components from output parts to prevent lubricating oil leakage. Seals used for static sealing and dynamic sealing (generally reciprocating motion) are called oil seals. The representative form of oil seal is the TC oil seal, which is a double-lip oil seal with a self-tightening spring fully covered by rubber. The term oil seal generally refers to this type of tc cased oil seal.

elaflex seal principle

Since there is an oil film controlled by the oil seal lip between the oil seal and the shaft, this oil film has fluid lubrication characteristics. Under the action of liquid surface tension, the stiffness of the oil film causes the end of the oil film in contact with air to form a meniscus, preventing leakage of the working medium and thus achieving sealing of the rotating shaft. The sealing capability of the oil seal depends on the thickness of the oil film on the sealing surface. If the thickness is too large, the oil seal will leak; if the thickness is too small, dry friction may occur, causing wear of the oil seal and shaft. If there is no oil film between the sealing lip and the shaft, it is easy to cause heating and wear. Therefore, during installation, some oil must be applied to the sealing ring, and it must be ensured that the cased oil seal is perpendicular to the shaft axis. If not perpendicular, the sealing lip of the oil seal will drain the lubricating oil from the shaft, which will also lead to excessive wear of the sealing lip. During operation, it is ideal for a small amount of lubricant in the housing to seep out slightly to achieve the state of forming an oil film at the sealing surface.

elaflex seal applications

Cased oil seals are widely used in aviation, automotive, motorcycle, railway, vehicle, ship, home appliance, and construction machinery industries. They are suitable for sealing rotating and reciprocating motions. Installed in various heavy-duty engines, gearboxes, axles, ships, cylinders, and other parts. Mainly prevents penetration of the sealed medium (gas, liquid) and entry of external foreign matter into the body. Precautions: The pressure bearing range of ordinary oil seals is very limited, generally 0.03 MPa. This pressure is generally formed by the height difference of the lubricating oil itself. If higher pressure needs to be sealed, high-pressure oil seals (generally capable of withstanding up to 1 MPa pressure) or other sealing forms should be selected.

elaflex seal specifications and uses

1) Ordinary single-lip type: Generally used for sealing mineral oil, water, and other media in high and low-speed rotating shafts and reciprocating motions. Ordinary oil seals are used in environments with less dust and impurities, resistant to media pressure<0.05MPa occasions, maximum linear speed 15m/s, reciprocating motion speed<0.1m/s. 2) Ordinary double-lip type: In addition to the usage characteristics of the above-mentioned S type oil seals, it can also prevent dust. Ordinary oil seals with dust lips can prevent dust and resist media pressure<0.05MPa occasions, linear speed ≤ 15m/s. 3) Springless type: Single-lip inner-cased skeleton rubber oil seal without spring. Generally suitable for low-speed conditions where the sealing medium is lubricating grease. Linear speed ≤ 6m/s. 4) Outer skeleton single-lip type: Single-lip outer-exposed skeleton rubber oil seal with spring, thin waist, good followability, good rigidity. Ordinary oil seals are used in environments with less dust and impurities, resistant to media pressure<0.05MPa occasions. Rotational axis linear speed ≤ 15m/s conditions. 5) Outer skeleton double-lip type: Double-lip outer-exposed skeleton rubber oil seal with auxiliary lip, thin waist, good followability, high rigidity, good coaxiality. Ordinary oil seals with dust lips can prevent dust and resist media pressure<0.05MPa occasions. Rotational speed ≤ 15m/s. 6) Assembled single-lip type: Outer skeleton oil seal formed by assembling inner and outer skeletons with rolled edges, featuring high installation precision, fast heat dissipation, and heavy-load characteristics. Suitable for heavy-load conditions under high temperature and high speed, media pressure ≤ 0.05MPa, maximum linear speed ≤ 15m/s. 7) Unidirectional return flow type right-hand rotation, left-hand rotation: Angled diagonal ribs are manufactured on the air side of the lip, utilizing hydrodynamic principles to produce a unidirectional pumping action with a return flow effect. Related to the rotation direction of the shaft, due to the return flow effect, the radial force is smaller than that of ordinary oil seals, reducing wear and heat generation, improving service life, suitable for media pressure<0.05MPa occasions, rotational speed ≤ 20m/s. 8) Pressure-resistant type: Short lip, short and thick waist, has pressure-resistant function, working pressure ≤ 3MPa. Suitable for occasions with media pressure ≤ 3MPa, suitable for shaft end oil seals of high-pressure pumps, generally PV value ≤ 8. Rotational axis linear speed ≤ 15m/s.

Weidou Intelligent Technology professionally sells German elaflex seals, elaflex sealing rings, elaflex sealing strips, elaflex pipeline seals, elaflex cable seals, elaflex rubber seals, elaflex mechanical seals, elaflex sealing gaskets, elaflex oil seals, elaflex shaft seals, elaflex metal seals, elaflex high-pressure seals, elaflex spiral seals, elaflex centrifugal seals, elaflex sealing rings, elaflex original German imports. Welcome customers to inquire and order.