Description
Polini Crankshaft Bearings + Oil Seals MBK Booster / Nitro at a bargain price.
For racing engines, or for simply replacing original bearings and seals. The oils seals are special Polini seals - made of Viton® for superior hydrocarbon resistance, with polymer-coated lip for reduced friction.
2 crankshaft main bearings (NTN C4 - 6204), steel cage, 20x47x14mm
2 oil seals, Viton® + Polymer, 20x30/34x6mm and 20x42/43x8mm.
Questions about the product
Notes and Safety
Crankshaft bearings for motorcycle, scooter and moped
Crankshaft 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 must be replaced immediately, otherwise there is risk of further damage to the engine. There are many different tools for crankshaft removal or bearing pullers.
You can see how to change crankshaft bearings in our crankshaft disassembly and assembly tutorial.
Technical details
| Crankshaft Bearings Polini + Oil Seals Yamaha Aerox / BW's | |
|---|---|
| Article no. | P282.0002 |
| EAN | 8054705085277 |
| Weight | 0,27 kg |
| Brand | Polini |
| Product type | Crankshaft bearing kit |
| Stroke | Original |
| Conrod length | Standard |
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