Oil seal 20x62x7mm -BGM PRO FKM/Viton® (E10/etahnol resistant)-(used for crankshaft drive side Vespa Sprint (till 1976), Super (till 1976), TS (till 1976), GT125 (till 1976), GTR125 (till 1976), GL150 (VLA1T), VNA, VNB, VBA, VBB)
Description
BGM PRO shaft sealing rings made of high-quality and ethanol-resistant (E10) FKM/Viton®*
CORRECT HEIGHT (20x62x7MMM INSTALLATION 20x62x6.5MM)
The BGM PRO shaft seal on the coupling side has a height of 7mm instead of the 6.5mm normally used by other manufacturers. This means that the BGM PRO shaft sealing ring is based on the original old Piaggio design. Anyone who disassembles an old original motor will notice that a 7mm oil seal has been used on the clutch side.
FLOATING Crankshaft
The crankshaft bearings of the old engines are 'floating'. This means that the bearing is not fixed and can be moved axially (sideways) in the motor housing. This happens e.g. under load due to the axial force of the helical toothed primary drive. If the crankshaft shifts too much, this can have an effect on the ignition as well as on the operation of the clutch.
STOPLIMITATION
In these engines, therefore, only the shaft sealing rings serve as lateral stop limiters. The height of the shaft seals thus determines the amount of 'air' between the bearings and the shaft seals themselves. The tolerances in the old motors are so large (e.g. due to motor sealing paper with greater thickness than at that time) that even with the 7mm height there is still more than enough distance. The bearings therefore run without preload.
WHY FKM/VITON®
The material FKM (fluorocarbon rubber) is extremely resistant to heat, friction and fuel/ethanol. Current super fuel in Germany already contains up to 5% ethanol per se. In other countries the ethanol/alcohol content is significantly higher. Conventional shaft seals can swell or soften on contact with fuels containing ethanol. The BGM PRO FKM/Viton® rotary shaft seals offer perfect protection against this. In addition, Viton is twice as temperature resistant as conventional (blue) NBR shaft seals, has very good gas impermeability and is also very resistant to ageing.
FITFOR
An engine equipped with BGM PRO FKM/Viton® shaft seals can therefore also be used without problems in engines that run on E10 fuel (10% alcohol content).
The high-quality brown Viton®* sealing material is permanently resistant to alcohol and is also suitable for engines with high temperature loads and high speeds.
BGM PRO FKM/Viton® shaft seals are therefore suitable for all engines, whether original or tuned high-performance engines.
For reasons of environmental protection and in favour of a maximum flexibility of the sealing lip, we deliberately do not apply any additional PTFE/Teflon®* to the sealing lip.
ADVANTAGES BGM PRO
The BGM PRO shaft sealing rings offer double sealing as an additional feature. All shaft sealing rings that seal to the atmosphere have a so-called dust lip. This is positioned before the actual sealing lip and keeps dust, dirt and moisture away. This further increases the very good stability.
CONCLUSION
The BGM PRO rotary shaft seal set improves the installation clearance and offers an extremely long service life due to the excellent materials FKM/Viton® combined with perfect fuel compatibility as it is even E10 resistant. Fits without modifications in all Vespa largeframe engines with two equally sized crankshaft bearing types.
*Viton®/Teflon® are registered trademarks of DuPont Dow Elastomers
incl. VAT plus shipping costs
| OEM numbers (for comparison purposes only) | |
|---|---|
| Piaggio | 2/49290, 49290 |
| Customers alternatively searched for | |
|---|---|
| Wellendichtring | 20 | 62 | 6 | 5 | Simmerring | Dichtring | Dichtung | Wedi | Wellendichtung | Oil | Seal | 20 | 62 | 6 | 5 | Joint Spi 20X62X6 | 5mm | Paraolio 20X62X6 | 5mm | Retén 20X62X6 | 5mm | Bourrage | | |
In exploded views
- Vespa (Motovespa) Vespa 125 L (M62)
- Vespa (Motovespa) Vespa 125 L (engine V101M)
- Vespa (Motovespa) Vespa 125 N (engine V60M)
- Vespa (Motovespa) Vespa 125 N (M61)
- Vespa (Motovespa) Vespa 125 N (M64)
- Vespa (Motovespa) Vespa 125 S (engine V60MS)
- Vespa (Motovespa) Vespa 150 F (engine 2V03M)
- Vespa (Motovespa) Vespa 150 GS (engine 04M)
- Vespa (Motovespa) Vespa 150 L (engine 2V02M)
- Vespa (Motovespa) Vespa 150 S (engine 2V01M)
- Vespa (Motovespa) Vespa 150 S (engine 502M)
- Vespa (Motovespa) Vespa 150 Sprint (engine 04M)
- Vespa (Motovespa) Vespa 160 (engine 09M)
- Vespa (Piaggio) Vespa 125 (VNB2T)
- Vespa (Piaggio) Vespa 150 Super (A, VBC)
- Vespa (Piaggio) Vespa 150 Sprint (VLB1T)
- Vespa (Piaggio) Vespa 125 (VNB1T)
- Vespa (Piaggio) Vespa 125 (VNB6T)
- Vespa (Piaggio) Vespa 125 Super (VNC1T)
- Vespa (Piaggio) Vespa 125 GTR (VNL2T)
- Vespa (Piaggio) Vespa 125 GT (VNL2T)
- Vespa (Piaggio) Vespa 150 (VBA1T)
- Vespa (Piaggio) Vespa 150 (VBB2T)
- Vespa (Piaggio) Vespa 150 Super (VBC1T)
- Vespa (Piaggio) Vespa 150 (VGLA)
- Vespa (Piaggio) Vespa 150 (VGLB)
- Vespa (Piaggio) Vespa 150 GL (VLA1T)
- Vespa (Piaggio) Vespa 150 Sprint Veloce (VLB1T)
Fits the following vehicles
- Vespa (Augsburg) Vespa 125 (type 152, VNA1T)
- Vespa (Augsburg) Vespa 125 T/1 (type 222, VNA2T)
- Vespa (Augsburg) Vespa 125 T/2 (type 232, VNB1T)
- Vespa (Augsburg) Vespa 125 T/2 (type 392, VNB3T)
- Vespa (Augsburg) Vespa 125 T/2 (type 392, VNB4T)
- Vespa (Augsburg) Vespa 150 T/4 (type 332, 3-speed) (VGLA1T)
- Vespa (Augsburg) Vespa 150 T/4 (type 332, 4-speed) (VGLB1T)
- Vespa (Augsburg) Vespa 150 T/4 (type 202, VGLA1T)
- Vespa (Douglas) Model 152L2 (VNA)
- Vespa (Douglas) Model 232L2 (VNB)
- Vespa (Douglas) Model 312L2 Sportique (VBB)
- Vespa (Douglas) New 150 (VBA)
- Vespa (Piaggio) Vespa 150 (VBA1T)
- Vespa (Piaggio) Vespa 150 (VBB1T)
- Vespa (Piaggio) Vespa 150 (VBB2T)
- Vespa (Piaggio) Vespa 150 Super (VBC1T)
- Vespa (Piaggio) Vespa 150 GL (VLA1T)
- Vespa (Piaggio) Vespa 150 Sprint (VLB1T)
- Vespa (Piaggio) Vespa 150 Sprint Veloce (VLB1T)
- Vespa (Piaggio) Vespa 125 GTR (VNL2T)
- Vespa (Piaggio) Vespa 125 (VNA1T)
- Vespa (Piaggio) Vespa 125 (VNA2T)
- Vespa (Piaggio) Vespa 125 (VNB1T)
- Vespa (Piaggio) Vespa 125 (VNB3T)
- Vespa (Piaggio) Vespa 125 (VNB4T)
- Vespa (Piaggio) Vespa 125 (VNB5T)
- Vespa (Piaggio) Vespa 125 (VNB6T)
- Vespa (Piaggio) Vespa 125 Super (VNC1T)
- Vespa (Piaggio) Vespa 125 GT (VNL2T)
- Vespa (Piaggio) Vespa 125 TS (VNL3T)
- Vespa (Piaggio) Vespa 150 Super (A, VBC)
- Vespa (Piaggio) Vespa 125 (VNB2T)
Blog
Ratings
Der originale WeDi hat 6,5mm, dieser hier 7mm. Ich vertraute auf die Beschreibung und kaufte ihn. Nach dem Einbau machte sich das Problem schnell bemerkbar. Die 0,5mm mehr fehlen jetzt zwischen dem Primärzahnrad und Wellendichtring. Die Folge ist, dass das Primärzahnrad am Wellendichtring schleift. Gerade wenn man ein Red Kit verbaut, passt gar nichts mehr.
Hallo Julian,
die 7mm Bauhöhe (wie original Piaggio) sind kein Problem.
Der Wellendichtring hat ja zur Kupplung einen Seegering als Anschlag.Es ist also egal ob der WeDi 6.5mm oder 7mm Bauhöhe hat (das Kurbelwellenlager stützt sich ja auf dem Wedi ab und presst diesen gegen den Anschlag).
Die alten Motoren sind an dieser Stelle konstruktiv sehr eng. D.h egal welcher Wellendichtring verwendet wird, es müssen alle anderen Bauteile gut passen. Gerade die Niete der Primär müssen sauber gestaucht werden damit sie nicht schleifen.
Der BGM Wellendichtring ist da also 'unschuldig'. Der sorgt lediglich für ein besseres Einbaumaß der Kurbelwellenlager.
Gruß und weiterhin viel Erfolg beim schrauben, Dein SC Team!
