rocket2117
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rocket2117
Posts: 106
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posted August 13, 2012 04:42 PM
wheel bearings
i have an 09 14 se it has always had a noise like it could be a wheel bearing not sure anyways when should i think about replacing the bearings it has 12k miles on it
  
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wrongway
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posted August 13, 2012 05:30 PM
I have 31k on mine ,,, no need for bearings yet..
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zixxer14
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Damn that was Quick
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posted August 13, 2012 06:10 PM
Pull the wheels & check them for any glitches when you turn them, they should be silky smooth without any slop or trash them. I check mine at every tire change. I replaced the rear at 28-29k but the front is original.
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Seno
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posted August 13, 2012 06:56 PM
If your bearing is cocked, then it might make sense. Personally when it's time to replace bearings I am going to put ceramic in... Have read quite a bit of stuff about them but have never put them in any of my bikes.
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2012 Black 14R -> Completely done!
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zixxer14
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Damn that was Quick
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posted August 13, 2012 08:27 PM
 Edited By: zixxer14 on 14 Aug 2012 04:56
At $300 a set neither have many others. Here's a set.........
http://www.bikeland.org/board/viewthread.php?FID=3&TID=69022&set_time=1344894545
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Lsantana954
Expert Class
Posts: 356
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posted August 14, 2012 12:53 AM
are ceramics recommended for street use? and is their life span shortened by using them soley on the streets
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'12 Gully Blue ZX14
-PCV/Guhl ECU/Blue CT Meg/<0 Alyson Oil/+8 Evil Arm/+1 Rear Sprocket
'07 Acura TL-S
'87 Buick Grand National
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Seno
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posted August 14, 2012 01:54 AM
I have heard mixed reviews regarding street use, and a set goes for $300 from WWB.....
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2012 Black 14R -> Completely done!
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Seno
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posted August 14, 2012 03:00 AM
Actually forget the ceramic bearings....
http://www.youtube.com/watch?v=kSuNQFhs37k&feature=related
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2012 Black 14R -> Completely done!
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Quarter Pounder
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posted August 14, 2012 05:23 AM
I've been running non-contact seals for years. No one believes me when you tell them you can actually feel the difference when you ride. Just pushing the bike around in the garage there is a difference. BUT, you do have to consider how you care for your ride...there is a slight trade off for running contact seals vs non-contact seals. A contact seal will have better longevity than a non-contact seal due to contamination...just plain simple physics.
You can purchase non contact seal bearings from any good bearing supply place or a Motion Industries branch with counter sales. Personally, I run NSK bearings...but then again, I am a field service tech with them and know them inside and out.
For the street, ceramics are nothing more than a gimmick IMO. We never get close to the operating speeds or loads that make ceramics great. A good quality bearing with poly cage, light grease fill and non-contact seals roll extremely light.
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SWB 2008 ZX-14
9.19 @ 151
5.98 @ 123
1.53 60'
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Quarter Pounder
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posted August 14, 2012 05:24 AM
quote:
are ceramics recommended for street use? and is their life span shortened by using them soley on the streets
It all depends on the seal arrangement for them.
FYI...ceramics are not fragile by any means. Just try to crush a ceramic ball bearing in a press sometime.
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SWB 2008 ZX-14
9.19 @ 151
5.98 @ 123
1.53 60'
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GREYHOUNDMOSES
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posted August 14, 2012 05:26 AM
Edited By: GREYHOUNDMOSES on 14 Aug 2012 13:26
Seno. Don't you recognise that swingarm?
While the video is good info, ask the owner / video maker if he kept those bearings 
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Lsantana954
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Posts: 356
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posted August 14, 2012 01:43 PM
what type of bearings are needed for the wheels?
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'12 Gully Blue ZX14
-PCV/Guhl ECU/Blue CT Meg/<0 Alyson Oil/+8 Evil Arm/+1 Rear Sprocket
'07 Acura TL-S
'87 Buick Grand National
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Quarter Pounder
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posted August 14, 2012 01:54 PM
Deep groove ball bearing is what's specified with double, full contact seals. These are normal or C3 clearance, with stamped steel cage and normal grease fill.
Any premium bearing brand is just fine.
NSK
FAG
NTN
DO NOT BUY CHINESE BEARINGS...inferior steel and poor quality control.
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SWB 2008 ZX-14
9.19 @ 151
5.98 @ 123
1.53 60'
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Lsantana954
Expert Class
Posts: 356
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posted August 14, 2012 02:28 PM
any other specs or part numbers for the brands youve listed? was browsing on motion industries website and trying to narrow it down
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'12 Gully Blue ZX14
-PCV/Guhl ECU/Blue CT Meg/<0 Alyson Oil/+8 Evil Arm/+1 Rear Sprocket
'07 Acura TL-S
'87 Buick Grand National
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Romans
Expert Class
Posts: 294
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posted August 14, 2012 03:07 PM
Weight on the wheel with pressure exererted on the bearing can not be shown like this. In a zero weight rolling resistance video you could show what ever you want. You tube has many video's showing exact opposite.
I run Ceramic Bearings in all my bikes. Once they break in even better.
If they are a Gimmick some one should have told Brock his Dyno #'s before install and after are misleading.
For what it's worth I have had Zero Bad experiences with them. Cheers
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2012 ZX-14 R Turbo, 2010 ZX-14 Turbo, 2007 ZX-14, 2009 ZX-6R, YZ 450F
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Quarter Pounder
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posted August 15, 2012 04:33 AM
Edited By: Quarter Pounder on 15 Aug 2012 12:42
For the street, yes, they are a gimmick. You have so many other friction adders that you won't notice any difference from a steel ball with poly cage and non-contact seals.
Love your comment "once they break in". Really?
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SWB 2008 ZX-14
9.19 @ 151
5.98 @ 123
1.53 60'
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Shane661
Needs a life
Posts: 11494
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posted August 15, 2012 05:12 AM
Edited By: Shane661 on 15 Aug 2012 13:13
I like having them in a street bike for the same reasons I like having them at the track. Every time I have to move the bike around the garage, I am thankful that I have them....the bike doesn't need to be running in order to reap the benefits. 
I have also used steel bearings with non-contact seals, and the results were great. They are about 1/3 the cost of ceramics.
Shane
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Quarter Pounder
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posted August 15, 2012 06:05 AM
We are talking about street bikes here...not the race bikes that make the trip to grocery store once a week or sit in garage until the next event. Daily rides that go everywhere in all weather.
If I set up two sets of wheels, one set with ceramics, and the other with steel...on a street bike...you'd be hard pressed to feel any difference. The cost differential vs gain in "performance" on a street ride is hardly worth it.
But hey...it's it a great dick measuring tool to say you got ceramic bearings in your bike.
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SWB 2008 ZX-14
9.19 @ 151
5.98 @ 123
1.53 60'
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Shane661
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posted August 15, 2012 06:48 AM
Edited By: Shane661 on 15 Aug 2012 14:50
quote:
We are talking about street bikes here...not the race bikes that make the trip to grocery store once a week or sit in garage until the next event. Daily rides that go everywhere in all weather.
If I set up two sets of wheels, one set with ceramics, and the other with steel...on a street bike...you'd be hard pressed to feel any difference. The cost differential vs gain in "performance" on a street ride is hardly worth it.
But hey...it's it a great dick measuring tool to say you got ceramic bearings in your bike.
You sure are militant in your views on bearings, lol. I don't believe that anyone can "feel" the performance difference of a ceramic bearing...unless you go to push the bike around. Then it is immediately apparent.
I don't see ceramic bearings as anything to brag about....either you run them, or you don't. Pretty simple.
Shane
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GREYHOUNDMOSES
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Posts: 324
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posted August 15, 2012 08:14 AM
I haven't heard of anyone wearing out a set of ceramic bearings yet.
When they do, it will become clear if claims of extended bearing life are true.
This should be taken into account when considering the apparent high price.
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Romans
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Posts: 294
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posted August 15, 2012 11:17 AM
quote:
For the street, yes, they are a gimmick. You have so many other friction adders that you won't notice any difference from a steel ball with poly cage and non-contact seals.
Love your comment "once they break in". Really?
Lots of info out there on the subject.
My bearings seem to get faster the more I ride them, why? 3 reasons. First- as the bearings break in the grease gets spread around and pushed to the cage which reserves long-term continuous lubrication. A thin oil film forms on the balls for lubrication. The thin oil films will generate less drag on the balls. Any excess grease is pushed out of the bearing, through the seal which makes the bearing faster. Second, the seals will break in and loosen. Third- The ceramic balls continually polish the races making them slicker and faster with time.
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2012 ZX-14 R Turbo, 2010 ZX-14 Turbo, 2007 ZX-14, 2009 ZX-6R, YZ 450F
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blue07
Expert Class
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posted August 15, 2012 11:25 AM
And there you have it!.....from one who has em! 
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Romans
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Posts: 294
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posted August 15, 2012 11:46 AM
There was a great post brought over here from Dave at World Wide bearing. Great detail.
Sorry, looked but can not find it. I thought Shane posted it ??? It was a great read. Maybe some one has a link ?
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2012 ZX-14 R Turbo, 2010 ZX-14 Turbo, 2007 ZX-14, 2009 ZX-6R, YZ 450F
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Quarter Pounder
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posted August 15, 2012 03:59 PM
Edited By: Quarter Pounder on 16 Aug 2012 00:01
quote:
quote:
For the street, yes, they are a gimmick. You have so many other friction adders that you won't notice any difference from a steel ball with poly cage and non-contact seals.
Love your comment "once they break in". Really?
Lots of info out there on the subject.
My bearings seem to get faster the more I ride them, why? 3 reasons. First- as the bearings break in the grease gets spread around and pushed to the cage which reserves long-term continuous lubrication. A thin oil film forms on the balls for lubrication. The thin oil films will generate less drag on the balls. Any excess grease is pushed out of the bearing, through the seal which makes the bearing faster. Second, the seals will break in and loosen. Third- The ceramic balls continually polish the races making them slicker and faster with time.
you do realize that happens almost immediately when they run don't you? And if the balls are polishing the raceway...you do not have any lubrication. There is no ball to race contact with good lubrication.
and Shane...militant? No, just well educated on this issue. Helps to work for a bearing manufacturer and do field service work on bearings. I've had them before and experimented with other stuff. I just took out a set that WAS bad with a spalled inner ring. But hey what do I know. It's just my profession, not some guy that bought a bearing and put them in.
____________
SWB 2008 ZX-14
9.19 @ 151
5.98 @ 123
1.53 60'
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Romans
Expert Class
Posts: 294
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posted August 15, 2012 05:29 PM
Edited By: Romans on 16 Aug 2012 01:44
Quarterpounder I get you just don't like them but they are a great Quality item. Most would be pleased with their purchase.
I too am a service Tech. I change Bearings for a Living. I did not feel the need to mention, but ok
A couple of pics
This bearing weighs 345lbs and takes 19 tubes of grease
Shaft once bearings removed
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2012 ZX-14 R Turbo, 2010 ZX-14 Turbo, 2007 ZX-14, 2009 ZX-6R, YZ 450F
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