- New
ATHENA Crankshaft Bearing for BETA RR 300 2013-2022
€15.90
Tax Included
An engine bearing: it lets a shaft (crank, gearbox, pump) turn without friction.
ATHENA offers this engine bearing for BETA RR 300 2013-2022. The engine’s shafts run on ball or roller bearings in the cases. They carry heavy loads at high revs and eventually develop play.
What is this bearing made of?
Races and balls (or rollers) in hardened chrome steel, 100Cr6 type: a very hard steel that withstands the fatigue of millions of engine revolutions.
- Open bearing: unsealed, it is lubricated and cooled by the engine oil; clean oil is its best protection.
- C3 / C4 internal clearance: slightly more clearance than normal for a hot engine’s expansion; always refit the original clearance.
- Limit: it dislikes dust and old oil; running short of oil destroys it within minutes.
Why choose ATHENA?
Athena, founded in 1973 by Giovanni Mancassola near Vicenza and based in Alonte (Italy), designs gaskets, pistons and cylinder kits; it supplies original equipment to manufacturers such as KTM, Ducati, Fantic and Triumph.
When should you replace the bearings on your BETA RR 300?
On competition bikes the main bearings are replaced at every bottom-end rebuild, at the hours recommended by the manufacturer. With the cases open, spin each bearing by hand: the slightest rough spot means it must go.
Specifications and fitting tips
- Manufacturer part number: MS300620160E3
Spare parts and items to plan
Compatibility
Check the exact model and year of your bike in the list below before ordering.
Fits:
BETA RR 300 2022
BETA RR 300 2021
BETA RR 300 2020
BETA RR 300 2019
BETA RR 300 2018
BETA RR 300 2017
BETA RR 300 2016
BETA RR 300 2015
BETA RR 300 2014
BETA RR 300 2013
MS300620160E3
5 Items
Specific References
Click on your bike to see all compatible parts.
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An engine bearing: it lets a shaft (crank, gearbox, pump) turn without friction.
ATHENA Crankshaft Bearing for BETA RR 300 2013-2022
€15.90
Tax Included