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Bearings - codes, w...
 

[Closed] Bearings - codes, what do they mean?

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[#9647167]

Stripped my Mojo today, swing arm and linkages removed. A couple of the lower link bearings are a bit 'gritty' so ideally should be replaced.

Both bearings labelled 'Enduro' with the following codes on each:

6902LLUMAX
DR1526LLB

Can anyone shed light on what the codes mean and, more to the point, where can I get decent quality replacements at a sensible price

TIA
Al


 
Posted : 05/11/2017 6:55 pm
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6902 is the size, 15x28x7, LLU will be the sealing, MAX means it full of balls. You could swap it for 6902-2RS which is a pretty common standard bearing. Not sure its worth it to save a couple of quid, though

DR1526LLB doesn't sound like a standard bearing code that I am aware of but it does come up in searches eg https://simplybearings.co.uk/shop/p20000545/ENDURO-DR1526LLB-Double-Row-Sealed-Ball-Bearing-15x26x10mm/product_info.html - EDIT I see its a double row bearing so slightly special and likely to be more expensive and rarer


 
Posted : 05/11/2017 7:13 pm
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Thanks Nick

Something odd going on here though.

I removed the 'gritty' bearing from the linkage thinking I could remove the seal and clean / re-grease it.

However once removed and free it felt nice and smooth so I removed the matching bearing from the other side (which was nice and smooth) and placed into the 'problem' side. Hey presto it's now feeling 'gritty' and a little 'tight'.

Suggests to me that the machined housing for the bearing is tight but if so I'm surprised I could get the bearing in - I don't have a bearing press, I just carefully tapped it in. Neither the outer bearing surface or the housing is dirty. I suppose it could be in very slightly off-line but it seems fully in place

Any ideas


 
Posted : 06/11/2017 12:36 am
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yes, a tight housing will cause the bearing to run rougher, as it's under some pressure. Or put another way, rough bearings which are removed often feel much better in your hand.

You can either just fit a new bearing, or lightly wet&dry the housing so it isn't so tight. An over-tight bearing will wear prematurely, so this is usually a good idea.


 
Posted : 06/11/2017 11:27 am