CB663HX bearings superseded?
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Joined: Feb 2003
Posts: 2,639
From: Mooresville, NC
CB663HX bearings superseded?
I ordered some CB663HXs and received CB663HXNs. 
Called the company I ordered them from to tell them I had received the wrong part and they told me the HXs had been superseded by the HXNs.
The N, I guess, stands for narrow and it is definitely narrower! I mic'd them both(have some old HXs laying around) to see the difference and the HXNs are .786" while the HXs are .838".
.052" seems like a lot, but I held them up together and looked at the bearing surface and the HXs(wider ones) have a chamfered edge, or something, and the wear area is identical!
So, I guess they are good to use?
Called the company I ordered them from to tell them I had received the wrong part and they told me the HXs had been superseded by the HXNs. The N, I guess, stands for narrow and it is definitely narrower! I mic'd them both(have some old HXs laying around) to see the difference and the HXNs are .786" while the HXs are .838".
.052" seems like a lot, but I held them up together and looked at the bearing surface and the HXs(wider ones) have a chamfered edge, or something, and the wear area is identical!
So, I guess they are good to use?
Thread Starter
Registered User
Joined: Feb 2003
Posts: 2,639
From: Mooresville, NC
I guess this kinda answers my question. Looks like the HX is being substituted by the HXN.
First two parts...
http://store.summitracing.com/egnsea...&DDS=1&N=700+0
Looks like ALL the 663s are being replaced by the "N" part number.
First two parts...
http://store.summitracing.com/egnsea...&DDS=1&N=700+0
Looks like ALL the 663s are being replaced by the "N" part number.
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