POLINI 285.0006 oil seal overhaul kit crankshaft 20 mm cone for VESPA 50 125 SPECIAL PK XL NLR 125 ET3 ETS PK PRIMAVERA ET3 XL APE 50 FL FL2 FL3 RST MIX

POLINI 285.0006 oil seal overhaul kit for 20 mm cone crankshaft for VESPA 50 125 SPECIAL PK XL NLR 125 ET3 ETS PK PRIMAVERA ET3 XL APE 50 FL FL2 FL3 RST MIX 20x32x7 22.7x47.05x7 Polini has created a series of sealing rings (oil seals) for the most popular moped and scooter models on the market. Perfectly interchangeable with the original ones, they can be mounted both on the crankshaft and on the primary shafts of CVT transmissions. Made of FKM (fluorocarbon rubber) to withstand the highest thermal stress, they have a sealing lip coated in PTFE (polytetrafluoroethylene); This feature, in addition to making them more durable than standard sealing rings, means that they have a significantly lower friction coefficient, thus ensuring less dispersion due to friction and at the same time maintaining lower temperatures. These sealing rings were designed for racing engines but are also perfectly suited to standard engines without upgrade kits where, precisely because of the low power available, the reduction in friction allows for higher rotation speeds to be reached. TECHNICAL CHARACTERISTICS FKM body. Steel metal armor. Inner lip coated in PTFE with a very low friction coefficient