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Hub bearing depth? is there a reason for the difference?

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Old 02-18-2019 | 01:34 PM
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Default Hub bearing depth? is there a reason for the difference?

This is my first post since my greeting post. I have only read forums and have never been a member. Finally I joined one, I joined to hopefully learn a little more about HD. My post today is about HD hub offsets... Does anyone know if wheel manufacturers use the bearing face to set the offset on their wheels? I have always been curious because the wheels I bought for my bike have the bearings sitting at different depths from front to back and or side to side. I always wondered if different bikes have the bearings set further or closer in or out to the disk mating face. My front hub bearings were flush but the pulley side rear sits above the disk mating face protruding a little. To me I would have thought that the bearing face would sit nice and flush to the disk mating face on all sides of the hub. I actually though this may just have been poor manufacturing quality but the more I think bout it and the OEM spacer got me thinking well maybe they use this to set the wheel offset. Just a real mind boggling topic but thought it would be a good chat anyhow. Thank you for who ever chimes in
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Old 02-22-2019 | 08:55 PM
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Typically wheels that are made to fit a specific application don't have protruding bearings and are usually inset. But sometimes you have to "make things work" depending on the combination of parts and bike involved. The result may be in fact protruding bearings.


What do you have going on? Is it for this Dyna below ... is it a 06/07?


 
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Old 02-23-2019 | 01:36 AM
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Hello sir, I was hoping to get to chat with you. I have read a few posts and you had spoken through the forum and you seem to know a lot about hubs. I have a fascination with wheels and put them in everything I own. I was just curious because on my bike the front sit flush the rotor side rear sits recessed 3 ml and the pulley side protrudes. I was just wondering why out of four hubs ( three anyhow) were they all different. I though it would be to do with off set but I think that is determined by rotor and pulley location please correct me if I am wrong. I wonder why someone would sell a wheel like that. What would your explaination be? Thank you again for speaking with me.
 
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Old 02-23-2019 | 01:37 AM
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And yes sir that fxdbi
 
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Old 02-23-2019 | 11:25 AM
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So, it's a 06/07?

It's the Brake disc side (Front Left, Right Rear) that everything is set-up from



Did you buy those wheels New? ... They would not have designed those wheels for a particular application with the intent of having protruding bearings.

Do you have any pics of the other Hub Halves? ... And Good (close) pics of the Bearing Face/Seal area?
 
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Old 02-23-2019 | 11:30 AM
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There will be slight differences to allow use on multiple bikes, with fewer designs needed. But I have never seen a wheel that didn't have the bearing at least flush with the hub, if not slightly inset.
 
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Old 02-23-2019 | 11:32 AM
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Is you center spacer correct? Seems like it may be either too long, or those bearings were not seated in far enough or in the right sequence.
 
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Old 02-23-2019 | 04:04 PM
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Old 02-23-2019 | 04:11 PM
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Bought the wheels new but were sent back 5 times until they got it right

the center spacer is tight and distance between hubs is correct. only thing i can figure was that bearing was set out 2 mm to be able to use the OEM axle spacers. The axle spacers are sung. there is an obvious spacer on the pulley side hub between bearing and hub.
 
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Old 02-23-2019 | 04:15 PM
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Originally Posted by Infamous Iron
Bought the wheels new but were sent back 5 times until they got it right

the center spacer is tight and distance between hubs is correct. only thing i can figure was that bearing was set out 2 mm to be able to use the OEM axle spacers. The axle spacers are sung. there is an obvious spacer on the pulley side hub between bearing and hub.
So they were not produced for your specific bike.
 



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