Roller bearing types

Onder

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• Dec 5, 2023

• #1

Bearing question: SKF use N, NU, and NJ for their roller bearings. Seems to me that it tells whether the rollers are
captive to the outer race or the inner race? Does it matter for the crank?

 

L.A.B.

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• Dec 5, 2023

• #2

The correct roller bearing is NJ.

 

Onder

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• Dec 6, 2023

• #3

Correct, yes. But does it matter? I am curious.

 

L.A.B.

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• Dec 7, 2023

• #4

The original rollers including the RHP Superblend were NF so I suppose NF bearings could be used.

 

concours

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• Dec 8, 2023

• #5

Has anyone tried the NTN brand, Japanese made?

Norton Commando Superblend Roller Bearing (1) - 06-4118 - Classic British Spares

amp.getrocketamp.com

I use them a lot in precision machinery, have a lot of respect for the quality.