Description Polini crankshaft bearings and seals MinarelliPolini crankshaft bearings and shaft seals for Minarelli scooters (Yamaha Aerox and many more). Suitable for racing engines, but can of course also be used as spare parts for original setups. The oil seals are HQ rings made especially for Polini from high-quality Viton, with extremely high thermal and chemical resistance. The lips are polymer-coated to minimize friction and wear.Contents crankshaft set2x crankshaft bearings with steel cage (NTN C4 - 6204), 20x47x14mm 2x oil seals, 20x30/34x6mm and 20x42/43x8mm Questions about the product

• Brand: Polini
• SKU: P282.0002
• Availability: In stock

Notes and Safety Crankshaft bearings for motorcycle, scooter and mopedCrankshaft bearings ensure the smooth operation of engines, whether on scooters, motorcycles or mopeds. The crankshaft is an integral part of the engine and the associated bearings and seals must be in perfect condition.A crankshaft bearing set consists of ball bearings and oil seals. They are usually sold as a complete set and must be replaced each time the crankshaft is installed/re-installed.What are the symptoms of defective crankshaft bearings?The main symptoms of a defective crankshaft bearing are:Unusual metallic noises coming from the direction of the crankshaft.Unusual vibrations of the vehicle.Defective bearings