NTN Crankshaft Bearing 30x62x16mm for KAWASAKI KX 250, KXF 250, KTM EXC 250, GS 250, SX 250 and SUZUKI RMZ 250 1984-2020

NTN offers this engine bearing for KAWASAKI KX 250, KXF 250, KTM EXC 250, GS 250, SX 250 and SUZUKI RMZ 250 1984-2020. 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 NTN?

NTN, the Japanese bearing maker founded in 1918, is the brand chosen by engine specialists such as ProX for their crankshaft bearing kits.

When should you replace the bearings?

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: 6206JR2C4

Cross-Mania tip: Heat the cases to remove and fit the bearings without forcing them, and replace the oil seals at the same time.

Also needed with this part

• Complete engine gasket kit : MOOSE 808457MSE · MOOSE 811457MSE
• 2-stroke oil : MOTUL 10W50 · LIQUI MOLY 10W40 1 L

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
KAWASAKI KX 250 2020
KAWASAKI KX 250 2019
KAWASAKI KXF 250 2018
KAWASAKI KXF 250 2017
KAWASAKI KXF 250 2016
KAWASAKI KXF 250 2015
KAWASAKI KXF 250 2014
KAWASAKI KXF 250 2013
KAWASAKI KXF 250 2012
KAWASAKI KXF 250 2011
KAWASAKI KXF 250 2010
KAWASAKI KXF 250 2009
KAWASAKI KXF 250 2008
KAWASAKI KXF 250 2007
KAWASAKI KXF 250 2006
KAWASAKI KXF 250 2005
KAWASAKI KXF 250 2004
KTM EXC 250 1996
KTM EXC 250 1995
KTM EXC 250 1994
KTM GS 250 1992
KTM GS 250 1991
KTM GS 250 1990
KTM GS 250 1989
KTM GS 250 1988
KTM GS 250 1987
KTM GS 250 1986
KTM GS 250 1985
KTM GS 250 1984
KTM SX 250 1996
KTM SX 250 1995
KTM SX 250 1994
SUZUKI RMZ 250 2006
SUZUKI RMZ 250 2005
SUZUKI RMZ 250 2004