Engine bearing, Roller, BC1-3342B, X30

IAME X30 Roller Bearing – Main Bearing (Updated Version)
This Original IAME spare part is the updated main bearing for the IAME X30 engine, replacing the earlier ball-bearing type. SKF BC1-3342B, this roller bearing improves reliability, reduces friction, and extends engine life under the extreme RPM conditions typical of X30 racing engines.

The roller design uses cylindrical rollers instead of balls, resulting in a larger contact surface, lower point load, and better rotational stability. This leads to a smoother, more durable engine with extended maintenance intervals and reduced vibration.

Compatibility: Fits all IAME X30 125 cc engines equipped with the roller-bearing crankshaft and can replace previous ball-bearing setups following IAME’s official upgrade procedure (see X30 Main Bearing Replacement Manual).
Application / Position: Installed as the main crankshaft bearing on both sides of the engine. Ensures smooth and stable rotation of the crankshaft with minimal friction and heat.
Installation / Use: Must be installed according to IAME’s updated assembly guide (X30 Main Bearing Replacement Manual). Always replace seals and use proper lubrication. Heat bearing seats to the recommended temperature before fitting.
Specifications & features: 
Genuine IAME/SKF roller bearing. Replacement for earlier ball-bearing version.
Provides improved durability, reduced friction, and extended service life.