Rear hub bearings ?

[andys]

Noticed my rear hub bearings had died today, anyone reccomend somewhere to get a new set, or indeed a full car bearing set ?
Ta.

[captainlip]

Click my link, 410 kits are in stock also, you will not be dissapointed
At the moment though I only do complete kits. Individual bearings available in the near future.

[mikeyscott]

www.rcbearings.co.uk are brilliant and cover many models. I used them on my old D410R

[captainlip]

Rc bearings use Abec1 rated bearings as stated here -
http://www.rcbearings.co.uk/index.ph...id=4&chapter=4

The next level is abec3 rated which i used in the "budget" kits, then the next up are the Abec5 rated and considerably better, all the kits I now sell are the Abec5 rated, nothing less

[TheReferee]

Originally Posted by captainlip

Rc bearings use Abec1 rated bearings as stated here -
http://www.rcbearings.co.uk/index.ph...id=4&chapter=4

The next level is abec3 rated which i used in the "budget" kits, then the next up are the Abec5 rated and considerably better, all the kits I now sell are the Abec5 rated, nothing less

why is an abec 3 or 5 bearing "considerably better"?

[captainlip]

Originally Posted by TheReferee

why is an abec 3 or 5 bearing "considerably better"?

the higher the rating the more spherical the bearing, the tolerances are much tighter, the better the ball the more free the bearing runs and smoother operating.

edit -

this is worth a read if interested

http://en.wikipedia.org/wiki/ABEC_scale

[TheReferee]

Originally Posted by captainlip

the higher the rating the more spherical the bearing, the tolerances are much tighter, the better the ball the more free the bearing runs and smoother operating.

edit -

this is worth a read if interested

http://en.wikipedia.org/wiki/ABEC_scale

really? abec ratings have got jack shit to do with the ball used, balls are graded on a different spec, you are comparing your abec 5 bearings to the other companies abec 1 bearings and telling us your bearings are considerably better!!, when actually a wheel fitted with your bearings will rotate at exactly the same speed, and in reality due to the application as an rc car wheel bearing an abec 1 bearing is a better choice than a higher abec spec.

[captainlip]

I never said it would spin faster, but certainly more efficent.

And it has alot to do with the spherical tollerances of the balls used.

Be my guest and buy Abec1 rated bearings, im not here to convince you if you think Abec1 are better.

[TheReferee]

rather than some dubious wikipedia perhaps this quote from SKF
Precision ABEC 5 and ABEC 7 bearings


Precision ball bearings in tolerance grades ABEC-5 and ABEC-7 are recommended for applications where high speed and/or extreme running accuracy is required.
These bearings have the same nominal external dimensions as equivalent size ABEC-1 grade bearings; however, the running characteristics and external dimensions are held to closer tolerances.

we require these bearings in the motors but not the wheels or transmission, we fit the bearings into moulded plastic wheels and put them through shafts which can in no way be described as precision fits, a higher tolerence bearing is more susceptable to failure due to water /dirt ingress and to keep its tight tolerences requires constant lubrication.

so feel free to spend money on a bearing which will fail sooner due to the application, cost more to replace and offer no performance increase over the abec 1 bearings

[TheReferee]

Originally Posted by captainlip

I never said it would spin faster, but certainly more efficent.

And it has alot to do with the spherical tollerances of the balls used.

Be my guest and buy Abec1 rated bearings, im not here to convince you if you think Abec1 are better.

which has nothing to do with the abec rating!

[TheReferee]

Originally Posted by captainlip

I never said it would spin faster, but certainly more efficent.

And it has alot to do with the spherical tollerances of the balls used.

Be my guest and buy Abec1 rated bearings, im not here to convince you if you think Abec1 are better.

surely your whole point in posting on this thread is to convince me your bearings are better than the other company mentioned?

[captainlip]

Originally Posted by TheReferee

surely your whole point in posting on this thread is to convince me your bearings are better than the other company mentioned?

NOT at all!

Secondly the bearings are also rubber shielded. yes the abec5 works for high RPM fittings, but for everything else they are CERTAINLY an improvement over standard and cheap kits.

If they werent I wouldnt spend my own time and money with these.

Finally I made 2 posts and youve turned this thread into a whole farce about how im trying to say im trying to convince you all my bearings are the best.

IN FACT all I was doing was pointing out that they are a much higher quality bearing than others sold, if your happy to run basic cheap bearings then thats your choice, but for the latter I offer a higher quality sealed bearings that i DONT force you to buy.

[TheReferee]

Originally Posted by captainlip

NOT at all!

Secondly the bearings are also rubber shielded. yes the abec5 works for high RPM fittings, but for everything else they are CERTAINLY an improvement over standard and cheap kits.
How?,they dont spin faster,dont last as long and cost more

If they werent I wouldnt spend my own time and money with these.
you would if it was in your commercial interest to convince people to buy

Finally I made 2 posts and youve turned this thread into a whole farce about how im trying to say im trying to convince you all my bearings are the best.
the original poster asked for somewhere to buy bearings, you answered and someone else suggested an alternative you then proceeded to post that your abec rating was better than theirs and therfore yours were "certainly better"

IN FACT all I was doing was pointing out that they are a much higher quality bearing than others sold, if your happy to run basic cheap bearings then thats your choice, but for the latter I offer a higher quality sealed bearings that i DONT force you to buy.

they are indeed a higher quality bearing which is completely unsuitable for the end application

[captainlip]

Originally Posted by TheReferee

they are indeed a higher quality bearing which is completely unsuitable for the end application

They ARE VERY suitable for the end application and your opinion that they dont last as long is extremely incorrect.

I only pointed out that the ABEC rating is higher than the others and jumped on the band wagon talking nonsense about being unsuitable and shorter lifespan.

these bearings have had extensive testing and have been running these bearings myself with better sucess than standard bearings, I wouldnt use any other bearing since using these.

this may be your opinion on the matter and yes it differs from mine, if your not convinced then im not going to convince you, but have you had experiance with different rated bearings and lifespan of each bearing? because you sound like you have but are then stating that an adequate bearing is inadequate and the longer lifespan is in fact a shorter lifespan.

Both those statements are very untrue.

[bodgit]

Taken from RZBOYZ
TOLERANCES:
Tolerances refer to how closely the moving parts fit together. There is an incorrect assumption about tolerances that started with the Skateboarding crowd that the tighter the tolerance, the better the bearing and the higher performance you will get out of those bearings. This is true to a point - the tolerances on a bearing needs to be tight enough to prevent "wobble" and other performance reducing problems. As tolerances become too tight, however, friction inside the bearing starts to increase and the performance will begin to suffer. You need lubrication and enough space for the bearing to spin freely. The Tolerances in a bearing are described by an ABEC or ISO number. The Higher the ABEC number, the tighter the tolerances. Bearings must reach a certain tolerance level (such as a width to achieve and ABEC rating. We have found that ABEC-1 bearings work well for light use, but ABEC-3 bearings are the best for hard use or racing. We have found that ABEC-5 bearings offer slower lap times. Make sure you ask your seller what for the ratings on their bearings - if they don't know or won't tell you, they are probably selling the cheaper ABEC-1 or even non-ABEC rated bearings.

[TheReferee]

Originally Posted by captainlip

They ARE VERY suitable for the end application and your opinion that they dont last as long is extremely incorrect.
why?

I only pointed out that the ABEC rating is higher than the others and jumped on the band wagon talking nonsense about being unsuitable and shorter lifespan.
they are and have

these bearings have had extensive testing and have been running these bearings myself with better sucess than standard bearings, I wouldnt use any other bearing since using these.
you have test data to back this claim

this may be your opinion on the matter and yes it differs from mine, if your not convinced then im not going to convince you, but have you had experiance with different rated bearings and lifespan of each bearing? because you sound like you have but are then stating that an adequate bearing is inadequate and the longer lifespan is in fact a shorter lifespan.
Both those statements are very untrue.
yes not sure what you mean why?

i am not jumping on a bandwagon, i just dont want to see people who use this site getting advice to buy items which are not necessary or have higher spec than required. the problem you have is the RC community comes from a wide spectrum of society and professions, for example i spent today at a race meeting, in the tent we were sharing we had a retired chief engineer from british steel, a graphic designer from a major rc company, two degree qualified specialists in marketing, a manager from Hewlett packard, two rc customer support people and an engineering manager from the Food industry. you pick a subject and i can guarantee there is a specialist in that area on this site, make claims about your bearings but dont get the arse when somebody picks you up on that.

[andys]

Crikey, I now know a lot more about bearings
So, which rating are the kit items that have failed ?

[captainlip]

Originally Posted by bodgit

Taken from RZBOYZ
TOLERANCES:
Tolerances refer to how closely the moving parts fit together. There is an incorrect assumption about tolerances that started with the Skateboarding crowd that the tighter the tolerance, the better the bearing and the higher performance you will get out of those bearings. This is true to a point - the tolerances on a bearing needs to be tight enough to prevent "wobble" and other performance reducing problems. As tolerances become too tight, however, friction inside the bearing starts to increase and the performance will begin to suffer. You need lubrication and enough space for the bearing to spin freely. The Tolerances in a bearing are described by an ABEC or ISO number. The Higher the ABEC number, the tighter the tolerances. Bearings must reach a certain tolerance level (such as a width to achieve and ABEC rating. We have found that ABEC-1 bearings work well for light use, but ABEC-3 bearings are the best for hard use or racing. We have found that ABEC-5 bearings offer slower lap times. Make sure you ask your seller what for the ratings on their bearings - if they don't know or won't tell you, they are probably selling the cheaper ABEC-1 or even non-ABEC rated bearings.

They most certainly DO NOT result in slower laptimes! I'd in testing have found the ABEC5 offer No LOSS in performance, those who made these claims are incorrect.

[TheReferee]

Originally Posted by captainlip

They most certainly DO NOT result in slower laptimes! I'd in testing have found the ABEC5 offer No LOSS in performance, those who made these claims are incorrect.

please supply your test data for the above claim, what testing ? to what standard?

[captainlip]

Originally Posted by TheReferee

please supply your test data for the above claim, what testing ? to what standard?

the captainlip standard, nuff said! Id like to see the test results for their claim saying they believe abec5 actually results in slower lap times or could that be because they only want to sell abec3 rated bearings.....