Description
Polini crankshaft bearings and oil seals for Motobecane / MBK 51
Polini, an established name in the 50cc scene, offers this high-quality bearing and oil seal set as a perfect replacement for Motobecane MBK 51 mopeds. The parts are fully compatible with the original components and can be fitted to the crankshaft and primary gear without modification.
Polini oil seals - high load capacity and long service life
The seals are made of FKM (fluorocarbon rubber) and have a PTFE sealing lip. Both materials are heat-resistant, low-friction and designed for a long service life - ideal for use in racing conditions. The result: less heat development, less wear, more efficiency.
Crankshaft bearing kit contents
- 2x bearings 16x42x13 C3
- 2x oil seals 15x22x5 PTFE + FKM
This kit is suitable for both standard engines and tuned setups and ensures reliable performance and a longer engine life.
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.
| Crankshaft Bearings Polini MBK 51 | |
|---|---|
| Article no. | P282.0010 |
| EAN | 8054705128264 |
| Weight | 0,38 kg |
| Brand | Polini |
| Product type | Crankshaft bearing kit |