Description
HD Crankshaft Bearings and FKM Oil Seals
HD (for Heavy Duty) crankshaft bearing set incl. FKM oil seals from Naraku. The bearing set contains 2x crankshaft bearings with metal cage and the matching crankshaft seals.
Heavy duty bearings are especially durable and long lasting. Only high quality bearings with C3 bearing clearance from one of the leading Japanese bearing manufacturers (NTN or KOYO) are used. Ideal for street use or racing.
The premium oil seals made of high quality FKM (fluoro-rubber) provide a reliable and long lasting seal. The material is resistant to all engine oils and fuels and has optimum thermal properties.
We recommend always using new bearings and sealing rings when replacing the crankshaft.
This complete bearing kit for Kymco and Sym horizontal models is the only kit which includes both the matching bearings and the matching oil seals.
Suitable for:
- Kymco and Sym AC or LC
- Kymco engines with intake on the cylinder (Heroism50, 80c quad engines)
- Sym engines with intake on the cylinder
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 HD and Oil Seals FKM Naraku Kymco / SYM horizontal | |
|---|---|
| Article no. | NK104.02 |
| EAN | 4057237639639 |
| Weight | 0,33 kg |
| Brand | Naraku |
| Product type | Crankshaft bearing kit |