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PTFE Oil Seal

Perkins VW Audi Crankshaft Oil Seal Manufacturer | Engine Oil Seals Supplier
PTFE Oil Seal

Perkins VW Audi Crankshaft Oil Seal Manufacturer | Engine Oil Seals Supplier

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  • Perkins VW Audi Crankshaft Oil Seal Manufacturer | Engine Oil Seals Supplier
  • Perkins VW Audi Crankshaft Oil Seal Manufacturer | Engine Oil Seals Supplier
  • Perkins VW Audi Crankshaft Oil Seal Manufacturer | Engine Oil Seals Supplier
  • Perkins VW Audi Crankshaft Oil Seal Manufacturer | Engine Oil Seals Supplier

Description

Product Description

Core Function: The Guardian of the Seal

In simple terms, a crankshaft oil seal is a critical gasket designed to do one primary job: keep engine oil in and contaminants out at the points where the crankshaft exits the engine block.

The crankshaft rotates at high speeds (thousands of RPM), and the engine is filled with oil for lubrication. The seal ensures this oil stays inside the engine's crankcase, preventing leaks, while also stopping dirt, dust, and moisture from entering and damaging the engine's internal bearings.

Key Locations

An engine typically has two crankshaft seals:

  1. Front Crankshaft Seal (or Timing Cover Seal): Located at the front of the engine, where the crankshaft protrudes to drive the timing belt or timing chain.

  2. Rear Crankshaft Seal (or Main Seal): Located at the back of the engine, where the crankshaft connects to the flywheel or flexplate, which in turn connects to the transmission.

The rear seal is often more difficult and expensive to replace because it requires disconnecting the transmission.

Construction and Materials

Crankshaft seals are not just simple O-rings. They are precision-engineered components made from materials that can withstand extreme conditions.

  • Outer Metal Case: Provides a rigid, press-fit structure that holds the seal securely in the engine block or timing cover. It prevents the seal from being pushed out by internal pressure.

  • Sealing Lip (The Critical Part): Made from a flexible, durable material. The lip is spring-loaded to maintain constant, even pressure against the rotating crankshaft.

    • Spring (Garter Spring): A small circular spring sits behind the sealing lip, ensuring it stays tight against the shaft even as it wears slightly over time.

  • Common Materials:

    • Nitrile (Buna-N): The most common, cost-effective material, suitable for standard mineral-based engine oils and temperatures.

    • Polyacrylate (PA): Better heat and oxidation resistance than Nitrile.

    • Silicone (VMQ): Excellent for extreme high and low temperatures but can have lower tear strength.

    • Fluoroelastomer (FKM/Viton): Premium material offering superior resistance to high temperatures, chemicals, and a variety of modern synthetic oils and additives. Common in high-performance and modern engines.

Types of Seals

  • Single-Lip Seal: The standard design, with one lip facing inward to seal the oil.

  • Double-Lip Seal: Has a primary sealing lip and a secondary, outward-facing dust lip. The dust lip provides an extra barrier against abrasive contaminants from the outside environment, significantly extending the seal's life.


PAKINS VW AUDI IVECO,ENGINE CRANKSHAFT OIL SEAL

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OEMOEMOEM
06A103171A04E103173D028103171B 026103171B 028103171K 026103171D
MODELMODELMODEL
VW / AUDI / SEAT / SKODAVW / AUDI / SEAT / SKODAVW / AUDI / SEAT / SKODA
OEMOEMOEM
068103051G 032104023L 068103171G 068198171S 100530306B103171B 06B103171D 06B103171E 06B103171J03C 103 173
MODELMODELMODEL
VW / AUDI / SEAT / SKODA / FORDVW / AUDI / SEAT / SKODAVW / AUDI / SEAT / SKODA
OEMOEMOEM
030103171L 030103171C 030103171F 030103171H030 103 171Q03L103171 03L103171A 076103171
MODELMODELMODEL
VW / AUDI / SEAT / SKODAVW / AUDI / SEAT / SKODAVW / AUDI / SEAT / SKODA
OEMOEMOEM
032 103 173B 03C103173A030103173A 030103171S 030103171T 030103171H038 103 171S / 076103171
MODELMODELMODEL
VW / FOXVW / AUDI / SEAT / SKODAVW / AUDI / SEAT / SKODA
OEMOEMOEM
06H 103 171022 103 151D 9551011510203H 103 151B
MODELMODELMODEL
VW / AUDI / SEAT / SKODAVW / AUDI / SKODA / PORSCHEVW / SKODA
OEMOEMOEM
06H103171F 06H 103 171A 95810317100 06K103171G068103171F 02810317K 026103171B 02810317104E103171E 04E103170B
MODELMODELMODEL
VW / AUDI / SEAT / SKODA / PORSCHEVW / AUDI / SEAT / SKODAVW / AUDI / SEAT / SKODA
OEMOEMOEM
911 505 341 0006E103153E038 103 153S
MODELMODELMODEL
PORSCHEVW / AUDI / SEAT / SKODAVW / AUDI / SEAT / SKODA
OEMOEMOEM
0K9BV11311****1052B328
MODELMODELMODEL
ROVER/KIA***MITSUBISHI
OEMOEMOEM
LUF100420 ERR7028100430LRO 43721
MODELMODELMODEL
Land RoverLand RoverLand Rover
OEMOEMOEM
68078786AA 68223854AA 5184285AG4663 622AC04663870 AB
MODELMODELMODEL
CHRYSLER / JEEP/ DODGECHRYSLERCHRYSLER / JEEP/ DODGE
OEMOEMOEM
3S7Q-6701-AB3S7Q-6700-ABCK5Q-6K301-AA
MODELMODELMODEL
FordFordLand Rover / Cadillac
OEMOEMOEM
12637710 12592243XS6E-6K301-B2G1S7G-6K318-AF LF0111310 LR025670
MODELMODELMODEL
CadillacFox FORDFORD / MAZDA / LAND ROVER
OEMOEMOEM
XS40-9G605-AH89FF-6B653AC 89FF-6A735AA 6179489 6190948XS4Q6K301AF 1207615 1078528
MODELMODELMODEL
Ford 1.8LFord 1.5L / 1.8LFord 1.8L
OEMOEMOEM
2720100814 2720100614 2720100514 272010041455352612BM5G-6K301-AA 1S4G-6A321-AA 1S4G-6K301-AA
MODELMODELMODEL
Mercedes-BenzCRUZEFord / FOX
OEMOEMOEM
604010011460401001142710160121 2710151520
MODELMODELMODEL
Mercedes-BenzMercedes-BenzMercedes-Benz
OEMOEMOEM
J0703070000 12279-43G04 12279-43G0512279-43G031229631U20 1229631U10 1229631U20 7701063899
MODELMODELMODEL
NISSAN /日产3.2劲旺2700NISSAN A31（Trade,F35.F45，L30.L50.T100）NISSAN A32 / RENAULT
OEMOEMOEM
12279-06J0153021337AB 53021338AB #68095 BS40684 53021337AB 5140028AA 05140028 5140028***
MODELMODELMODEL
NISSANCHRYSLER / DODGE 5.7L***
OEMOEMOEM
2105.352105.142105.51
MODELMODELMODEL
PEUGEOT / CITROENPEUGEOT / CITROENPEUGEOT
OEMOEMOEM
6090097807701476859***
MODELMODELMODEL
PEUGEOTRenault***
OEMOEMOEM
4653982499468744 504086314 051490 7701044092 0514.A8 5001865996 9318551846416876 46416877
MODELMODELMODEL
FIATFIAT / IVECO / PEUGEOT / RENAULT / CITROEN / OPELFIAT 1.6L / LANCIA
OEMOEMOEM
46788297500315684 5001865740 5040314094010 2343
MODELMODELMODEL
FIATIVECO / RENAULT TRUCKSIVECO
OEMOEMOEM
2418F7012418F7042418F705
MODELMODELMODEL
PERKINSPERKINSPERKINS
OEMOEMOEM
24106752 / (84*176/164*14.7)24107105 / (84*238.3/210.3*14.3)
MODELMODELMODEL
FORDFORD***

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What factors influence the performance of industry rubber seals

The sealing effect of the sealing ring is related to the material characteristics of the sealing ring. There is also a close influence on other factors. For example, the speed of rotation, working temperature, working pressure, working medium, etc., today I will tell you about the four factors that affect the sealing performance of the sealing ring.

First, the speed of rotation

  When the rotation speed is very low (< 0.03m/s), it is necessary to consider the smoothness of the operation of the equipment and whether the operational appears "crawling" phenomenon. When the movement speed is very high (> 0.8m/s), the lubricating oil film may be destroyed, and the oil seal is not well lubricated and frictions heat, resulting in greatly reduced life. It is recommended that polyurethane or rubber and plastic oil seal work in the speed range of 0.03m/s ~ 0.8m/s. High-speed oil seals need to put forward higher requirements for structure and material, and the speed of household appliances oil seals can reach 20000rpm. Both wear and temperature resistance need to be met, and the concentricity requirements of dynamic sealing on the installation are relatively high.  

Second, the temperature of the working environment

  Low temperature will reduce the elasticity of rubber and plastic oil seals, resulting in leakage, and even the entire oil seal becomes hard and brittle. High temperature will make the oil seal volume expansion, soft, resulting in the oil seal friction resistance increases rapidly and the pressure resistance decreases. It is recommended that the continuous operating temperature range of ordinary polyurethane or rubber and plastic oil seals be -10 ° C to +80 ° C. For the high temperature and high speed requirements of the working environment, we need to choose to use fluorine rubber and PTFE, high temperature resistance and wear resistance is better, the low temperature environment is generally to -40 degrees, and the rubber performance is tested at high and low temperatures to ensure that the product quality meets the requirements.  

Third, the working pressure of machinery

  The oil seal has a minimum service pressure requirement. Oil seals with low friction and low starting resistance should be selected for low pressure work. Below 2.5MPa, polyurethane oil seal is not suitable; High pressure to consider the oil seal pressure deformation, need to use anti-extrusion stop ring, grooving processing also has special requirements.

Fourth, the working medium

  General sealing media are gasoline, oil, diesel, grease, and some static sealing dust. In addition to selecting the working medium strictly according to the manufacturer's recommendations, it is important to keep the working medium clean. Aging or contamination of the oil will not only cause the components in the system to fail, accelerate the aging and friction of the oil seal, but also the dirt in it may scratch or embed the oil seal, making the seal fail. Therefore, it is necessary to regularly check the quality of the oil and its cleanliness, and replace the oil filter or oil according to the maintenance specifications of the equipment. The air remaining in the oil in the cylinder will be compressed by high pressure, which will cause the oil seal to burn out or even carbonize. In order to avoid this situation, exhaust treatment should be carried out at the initial operation of the hydraulic system. The hydraulic cylinder should also run at low pressure and slow speed for a few minutes to confirm that the residual air in the oil has been drained before it can work normally.