Has anyone has experience with the Jackson Racing idler pulleys wearing out?

I've put 86,000km on my JR kit (01 prelude) and all of a sudden the bearings on some of the idler pulleys are getting very loud! I'm afraid they will soon fail on me.
Are the bearings pressed in, or molded over? if they're pressed into place then I can just buy the bearing myself and swap them instead of paying the $34 and $74 that JR wants for the whole idler.

 

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The bearings are a German bearing that is design very high RPM use. It sucks but you will be better buying the Jackson ones, I tried a SKF and an NSK bearing in the past , Both failed soon after.

 

That's funny... The bearings that were in my pulley's were NSK. They are Japanese, not German. ???

I purchaced some ABEC-1 INA bearings (P/N 6200) dimension are 10X 30 X 9.

I bored out the JR pulleys by 2mm on one side so the bearings can come out (I think the JR Nylon pulleys are molded over the bearings) and pressed in the INA bearings. The dynamic load is 1 1/2 times what JR's site rates their bearings at (2280 lbs vs 1530) and the max RPM is also 1.3 times higher (31000 RPM vs 24000 RPM)

I'm not too woried about removing the small about of material from the pulley. All the load is going onto the bearing anyways since you need two bearing per pulley.


Modified by Paluce at 3:05 PM 1/12/2005

 

I wanted to add that the Aluminium pulleys (the ones with the ribs) are a simple swap. just press out the old bearings and press in the new ones.

All the old squilling noises have gone away!