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Rear wheel bearings - James ?

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Beresford
the 900
the 900

Posts : 1637
Location : not that far from Kirkistown

Rear wheel bearings - James ?

Post by Beresford on Fri 20 Apr 2018, 1:20 am

Working my way to the back of the bike I now find that when I removed the wheel and swing arm,I need to replace the wheel bearings.

James, from your knowledge of all things CB500, can you tell me NSK numbers for the bearings and seals please. I'm going to replace the lot although it's only the wheel bearings that have tightened up, the sprocket bearing is good, but as I have it all stripped down, now is the time to be thorough I think.
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Jameshambleton
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Posts : 2843
Location : Bedale, North Yorkshire

Re: Rear wheel bearings - James ?

Post by Jameshambleton on Fri 20 Apr 2018, 8:54 am

Just moved my thread with all the details.
http://www.cb500club.net/t5753-bearings-and-seals#54166
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Beresford
the 900
the 900

Posts : 1637
Location : not that far from Kirkistown

Re: Rear wheel bearings - James ?

Post by Beresford on Fri 20 Apr 2018, 10:53 am

Great James. Much appreciated.
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GollyGosh
Laser Shark
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Posts : 203
Location : Grimsby, Lincolnshire

Re: Rear wheel bearings - James ?

Post by GollyGosh on Fri 20 Apr 2018, 2:25 pm

Searching UK bearing companies for the original Koyo doesn't usually give a result.  Search for the first 4 digits i.e. 6302 will bring up a long list of the correct size bearing. It's the characters that follow which define correct type.

These have been confirmed as correct from two sources on the web

Koyo 6302UU equivalents are:

NSK 6302DDU
SKF 63022RSH
KOYO 63022RS


Koyo 6303UU equivalents are:

NSK 6303DDU
SKF 63032RSH
KOYO 63032RS


Koyo 6304UU equivalents are:


NSK 6304DDU
SKF 63042RSH
KOYO 63042RS


Koyo 6204UU equivalents are:

NSK 6204DDU
SKF 62042RSH
KOYO 62042RS


As James has said don't go for the more expensive C3 version. 

"C3 bearings have additional internal radial clearances to allow expansion in high speed / temperature environments.
Typically suited to hot and high speed environments ( fans, high speed motors etc)
They can feel loose until at running temperature and speed.
They are unsuitable where critical alignment is required from the onset."

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Re: Rear wheel bearings - James ?

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