PROX Crankshaft Bearing Ø30x62x16 - NJ206ECP-1 for KTM EXC 250, SHERCO SER 250, BETA RR 400 and HUSABERG FE 550 1999-2024

PROX offers this engine bearing for KTM EXC 250, EXC 400, EXC 450, EXC 525, SMR 450, SHERCO SE 125, SE 250, SEF 250, SER 250, BETA RR 250, RR 400, RR 450, RR 525 and HUSABERG FE 250, FE 550, FE 550 S, FE 650, FS 650 1999-2024. 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 PROX?

ProX uses Koyo or NTN bearings, largely made in Japan in OEM factories, with the original internal clearance (C3 / C4).

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

• Packing: by unit
• Manufacturer part number: 23.NJ206ECP-1

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 : CENTAURO · ATHENA
• 4-stroke engine 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:
BETA RR 250 2007
BETA RR 250 2006
BETA RR 250 2005
BETA RR 400 2009
BETA RR 400 2008
BETA RR 400 2007
BETA RR 400 2006
BETA RR 400 2005
BETA RR 450 2009
BETA RR 450 2008
BETA RR 450 2007
BETA RR 450 2006
BETA RR 450 2005
BETA RR 525 2009
BETA RR 525 2008
BETA RR 525 2007
BETA RR 525 2006
BETA RR 525 2005
HUSABERG FE 250 2013
HUSABERG FE 550 2008
HUSABERG FE 550 2007
HUSABERG FE 550 2006
HUSABERG FE 550 2005
HUSABERG FE 550 2004
HUSABERG FE 550 S 2005
HUSABERG FE 650 2008
HUSABERG FE 650 2007
HUSABERG FE 650 2006
HUSABERG FE 650 2005
HUSABERG FE 650 2004
HUSABERG FS 650 2008
HUSABERG FS 650 2007
HUSABERG FS 650 2006
HUSABERG FS 650 2005
HUSABERG FS 650 2004
KTM EXC 250 2006
KTM EXC 250 2005
KTM EXC 250 2004
KTM EXC 250 2003
KTM EXC 250 2002
KTM EXC 250 2001
KTM EXC 400 2004
KTM EXC 400 2003
KTM EXC 400 2002
KTM EXC 400 2001
KTM EXC 400 2000
KTM EXC 400 1999
KTM EXC 450 2007
KTM EXC 450 2006
KTM EXC 450 2005
KTM EXC 450 2004
KTM EXC 450 2003
KTM EXC 520 2002
KTM EXC 520 2001
KTM EXC 520 2000
KTM EXC 525 2006
KTM EXC 525 2005
KTM EXC 525 2004
KTM EXC 525 2003
KTM SMR 450 2007
KTM SMR 450 2006
KTM SMR 450 2005
KTM SMR 450 2004
KTM SMR 525 2005
KTM SMR 525 2004
KTM SX 400 2002
KTM SX 400 2001
KTM SX 400 2000
KTM SX 450 2006
KTM SX 450 2005
KTM SX 450 2004
KTM SX 450 2003
KTM SX 520 2002
KTM SX 520 2001
KTM SX 520 2000
KTM SX 525 2006
KTM SX 525 2005
KTM SX 525 2004
KTM SX 525 2003
SHERCO SE 125 2023
SHERCO SE 125 2022
SHERCO SE 125 2021
SHERCO SE 125 2020
SHERCO SE 125 2019
SHERCO SE 125 2018
SHERCO SE 250 2024
SHERCO SEF 250 2015
SHERCO SEF 250 2014
SHERCO SER 250 2023
SHERCO SER 250 2022
SHERCO SER 250 2021
SHERCO SER 250 2020
SHERCO SER 250 2019
SHERCO SER 250 2018
SHERCO SER 250 2017
SHERCO SER 250 2016
SHERCO SER 250 2015
SHERCO SER 250 2014