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What are shaft seal rings and how do they work?


Shaft seal rings are also known as radial shaft seals or Simmerrings. The term Simmerring goes back to the Austrian engineer Walther Simmer. Radial shaft seal is the synonym for the crankshaft shaft seal ring, a special shaft seal for the crankshaft. Generally, shaft seal rings seal moving / rotating parts that lead out from a closed housing. Such as the crankshaft, which passes power from the engine. The rotary shaft seal thereby prevents oil from escaping. Other shaft seals serve to protect against dust or splash water. They are also often referred to as axial shaft seals. The difference is that crankshaft shaft seal rings are mounted in a housing around the shaft, while axial shaft seals are mounted on the side of a housing in the axial direction. In the section below, we show why shaft seals can go defective and what signs indicate a defect. In addition, we give tips on what to look out for when buying a shaft seal ring.

How can shaft seal rings become defective and what are the symptoms?
What to consider when buying a shaft seal ring?

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ELRING Wellendichtring Simmering 2x 325.155 + 1x 342.093 für AUDI SEAT SKODA VW

Lieferumfang: stirnseitig + getriebeseitig

Item No.: PKT472W531
Manufacturer: ELRING
part number: 342.093, 325.155
Delivery:

  • 1x Shaft Seal, crankshaft Piece - ELRING 342.093
  • 2x Shaft Seal, crankshaft Piece - ELRING 325.155
16,45 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart

ELRING 311.898 Wellendichtring für PORSCHE 911 924 944 959 968 getriebeseitig

für die Kurbelwelle | PORSCHE OE: 999 113 264 40

Item No.: A09313W923
Manufacturer: ELRING
part number: 311.898
???item.ean.code???: 4041248020159
64374199: ASW
Innendurchmesser_mm: 90
Staubschutz: mit Staubschutzlippe
Mengeneinheit: Stück
Drallart: Linksdrall
Baugruppe: Kurbeltrieb
Breite_mm: 12
Material: FPM (Fluor-Kautschuk)/ACM (Polyacryl-Kautschuk)
Verwendung: Kurbelwelle
Aussendurchmesser_mm: 110
15,00 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart

Wellendichtring Ölpumpe STIRNSEITIG OPEL 2091167 / 25193519

vom OPEL Erstausrüster

Item No.: A16313W450
Manufacturer: OPEL
part number: 25193519
Verwendung: Ölpumpe
Einbauseite: stirnseitig
Mengeneinheit: Stück
Baugruppe: Schmierung
instead of 19,43 EUR 12,95 EUR

incl. VAT, excl. shipping costs

Currently not available at the time

ELRING 026.770 Wellendichtring Kurbelwelle für FORD C-MAX FOCUS TDCi stirnseitig

auch für Galaxy Mondeo S-Max Tourneo Transit Connect

Item No.: A06313W424
Manufacturer: ELRING
part number: 026.770
???item.ean.code???: 4041248153772
Breite_mm: 7,5
Innendurchmesser_mm: 30
64374199: ASW
64376050:
Staubschutz: mit Staubschutzlippe
Mengeneinheit: Stück
Baugruppe: Kurbeltrieb
Aussendurchmesser_mm: 50
Drallart: Rechtsdrall
Verwendung: Kurbelwelle
Material: PTFE (Polytetrafluorethylen)/ACM (Polyacryl-Kautschuk)
12,45 EUR

incl. VAT, excl. shipping costs

Currently not available at the time

CORTECO Wellendichtring Simmering Kurbelwelle 20035727B für CITROEN FIAT PEUGEOT

Item No.: A27313W432
Manufacturer: CORTECO
part number: 20035727B
???item.ean.code???: 3358960480231
Supplementary Article/Supplementary Info 2: mit Montagehülsen
Aussendurchmesser_1_mm: 66
Hoehe_1_mm: 7
Staubschutz: mit Staubschutzlippe
Mengeneinheit: Stück
Baugruppe: Kurbeltrieb
Material: PTFE (Polytetrafluorethylen)
Innendurchmesser_1_mm: 42
Drallart: Rechtsdrall
Einbauseite: stirnseitig
Verwendung: Kurbelwelle
10,00 EUR

incl. VAT, excl. shipping costs

Currently not available at the time

Wellendichtring Simmering Nockenwelle für AUDI MAN SEAT SKODA VW stirnseitig

entspricht VAG OE-Nummer: 03L 103 085 C

Item No.: A18313W417
Manufacturer: keine Angabe
part number: nicht zutreffend
Aussendurchmesser_mm: 47
Verwendung: Nockenwelle
Innendurchmesser_mm: 32
Breite_mm: 10
Einbauseite: stirnseitig
Mengeneinheit: Stück
Baugruppe: Motorsteuerung
8,03 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart

ELRING Wellendichtring Simmering Ölpumpe 490.800 für ASTRA G H CORSA B C 646943

passt für 1.7 Dieselmotoren, auch für MERIVA VECTRA A/B

Item No.: A16313W406
Manufacturer: ELRING
part number: 490.800
???item.ean.code???: 4041248398876
Material: ACM (Polyacryl-Kautschuk)
Breite_mm: 6
Staubschutz: mit Staubschutzlippe
Mengeneinheit: Stück
Baugruppe: Schmierung
64374199: AS
Verwendung: Ölpumpe
Drallart: Rechtsdrall
Aussendurchmesser_mm: 32
Innendurchmesser_mm: 18
7,50 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart

Wellendichtring Nockenwelle für CITROEN FIAT HYUNDAI KIA OPEL NISSAN PEUGEOT

auch für Chevrolet / Jaguar / Lancia

Item No.: A27313W422
Manufacturer: keine Angabe
part number: nicht zutreffend
Dicke_Staerke_mm: 7
Verwendung: Nockenwelle
Aussendurchmesser_mm: 50
Innendurchmesser_mm: 36
Mengeneinheit: Stück
Baugruppe: Motorsteuerung
6,84 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart

Wellendichtring Kurbelwelle getriebeseitig für AUDI SEAT SKODA VW 028103171B

Wellendichtring + zusätzliche Dichtung (s. Abbildung)

Item No.: A18313W116
Manufacturer: keine Angabe
part number: nicht zutreffend
Verwendung: Kurbelwelle
Mengeneinheit: Stück
Baugruppe: Kurbeltrieb
14,95 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart

CORTECO Wellendichtring Simmering Kurbelwelle 50x81x11,5mm stirnseitig 19036731B

Item No.: A28313W419
Manufacturer: CORTECO
part number: 19036731B
???item.ean.code???: 3358960569165
Material: PTFE (Polytetrafluorethylen)
Hoehe_1_mm: 11,5
Supplementary Article/Supplementary Info 2: mit Montagehülsen
Einbauseite: stirnseitig
Verwendung: Kurbelwelle
Innendurchmesser_1_mm: 50
Mengeneinheit: Stück
Aussendurchmesser_1_mm: 81
Baugruppe: Kurbeltrieb
19,95 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart

CORTECO 01033796B Wellendichtung Simmerring Differential für BMW LAND ROVER

entspricht BMW OE-Nummer: 31 52 1 428 678

Item No.: A02313W421
Manufacturer: CORTECO
part number: 01033796B
???item.ean.code???: 3358960136084
Hoehe_1_mm: 10
Material: ACM (Polyacryl-Kautschuk)
Baugruppe: Achsantrieb
Aussendurchmesser_1_mm: 69
Hoehe_2_mm: 15
Staubschutz: mit Staubschutzlippe
Mengeneinheit: Stück
Drallart: Linksdrall
Innendurchmesser_1_mm: 44
Verwendung: Differential
9,95 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart

CORTECO Wellendichtring Simmering Kurbelwelle stirnseitig 20015456B

Item No.: A27313W415
Manufacturer: CORTECO
part number: 20015456B
???item.ean.code???: 3358960154569
Aussendurchmesser_1_mm: 62
Hoehe_1_mm: 7
Staubschutz: mit Staubschutzlippe
Mengeneinheit: Stück
Baugruppe: Kurbeltrieb
Innendurchmesser_1_mm: 42
Drallart: Rechtsdrall
Einbauseite: stirnseitig
Material: FPM (Fluor-Kautschuk)/ACM (Polyacryl-Kautschuk)
Verwendung: Kurbelwelle
7,95 EUR

incl. VAT, excl. shipping costs

available / 1-2 working days
add to cart
of 10

How can shaft seal rings become defective and what are the symptoms?

Depending on the type of use for which a shaft seal ring is required, it is also made of different materials. In general, a shaft seal ring is composed of a metallic outer ring and a movable sealing lip made of special rubber or plastic compounds on the inside. Depending on the use, the outer ring is closed or has an opening on one side. In either case, the sealing lip is where a shaft seal ring breaks down, as it is the most stressed component. Impurities and unevenness on the shaft, too much or too little grease on the sealing lip, excessive heat or improper installation can all lead to wear. The result is increasing leakage. In the case of a crankshaft shaft seal ring, this is indicated by a high loss of oil. If dirt or moisture penetrate the inside of the housing, whistling noises or a burnt smell can also be a sign that the shaft seal is defective.

A defective Simmerring does not in itself pose an acute danger. Nevertheless, it is advisable to replace it promptly, as the loss of oil can lead to consequential damage and the penetrating moisture and dirt can cause damage inside the housing. Depending on the location of the shaft seal ring, replacement is not so easy, since, for example, in the case of the crankshaft shaft seal ring, the entire clutch and flywheel must be dismantled to reach the ring. A change can take up to 5 hours. It is also very important to grease the sealing lip of the new rotary shaft seal before installation, but not too much. It is also important that the adjustment and tightening torques of the bolted connections are precise. Changing a rotary shaft seal thus requires practical experience and a high level of expertise.

What to consider when buying a shaft seal?

What to consider when you want to buy a shaft seal? Who wants to buy a shaft seal, should first pay attention to where the Simmerring should be installed. There are some for the front side and also for the clutch side. There are also shaft seal rings for the oil pump, for example. Once the application is clear, the next step is to determine the dimensions. The outer and inner dimensions are important here. Both specifications are important so that the spare part can function correctly. In addition, the type of twist can also be relevant, i.e. in which direction the ring moves. There is a left-hand and right-hand twist in the crankshaft shaft seal ring if the shaft only ever moves in one direction. If the shaft can rotate in both directions, a rotary shaft seal with alternating twist is required.

When choosing rotary shaft seals, you can rely on us for high quality products from reputable manufacturers. These include brand manufacturers such as:

All brand manufacturers are characterized by the fact that they use high-quality materials, so that the shaft seal rings have a longer life. All products offered by us comply with the specifications of the vehicle manufacturers and thus have a high accuracy of fit.

To buy the right shaft ring, either enter the part number you need or select your vehicle. This reduces the view to only matching items. If you are still unsure which Simmerring is the right one for your vehicle, you are welcome to contact our customer service with the 17-digit chassis number.