- There are different types of retainer oil seals available, each designed for specific applications and operating conditions. Some common types include lip seals, mechanical seals, and labyrinth seals. Lip seals are the most common type and consist of a flexible lip that makes contact with the rotating shaft to create a seal. Mechanical seals, on the other hand, use a set of rotating and stationary components to create a seal, while labyrinth seals have multiple barriers to prevent oil leakage Mechanical seals, on the other hand, use a set of rotating and stationary components to create a seal, while labyrinth seals have multiple barriers to prevent oil leakage
Mechanical seals, on the other hand, use a set of rotating and stationary components to create a seal, while labyrinth seals have multiple barriers to prevent oil leakage Mechanical seals, on the other hand, use a set of rotating and stationary components to create a seal, while labyrinth seals have multiple barriers to prevent oil leakage
retainer oil seal.
ISO 6194-1 1)
Metal cased design
5. Conclusion
The edge of the metal is finely ground after seal manufacture in a centerless grinder to enable an interference fit in the oil seal housing. A slight chamfer on the outer diameter (OD) of the seal is desirable for easy assembly. The sealing lip is prepared by buffing, grinding or cutting away the rubber flash which occurs at the sealing edge. A fine sealing edge creates sufficient pressure on the shaft to minimise spring load, leading to lower friction whilst maintaining effective seal performance. The garter spring plays an important role in the efficiency of the oil seal. If its tension is too high, heat will be generated between the sealing lip and the shaft, and result in rapid wear of the lip. If too low, the spring will be ineffective and the sealing lip will be worn away leading to leakage of the fluid.
The range of uses of peroxydically cross-linked EPDM includes in hot water and steam seals. EPDM is also very resistant to ageing and ozone. Compared with the usual types of synthesis natural rubber it has good resistance to cold temperatures. EPDM is not resistant to aliphatic or aromatic hydrocarbons or mineral oil products. Resistance to chemicals, and also to oxidising agents, is very good. Temperature range from -50 °C to +140 °C depending on type.
Shaft Speed
Most conventional oil seals are designed only to withstand very low-pressure applications (about 8 psi or less). If additional internal pressure is present or anticipated, pressure relief is necessary.
The most common oil seals are the ERIKS types R, RST, M and MST, which correspond respectively to types A, AS, B and BS according to DIN 3760/ISO 6194.
Clean sediment out of the sump with petrol and a stiff brush . Dry with a lint-free cloth.
Rubber oil seals with a rubber fabric outer case