430 GT3 rear wheel bearings

Well how much are you willing to pay

 

will determine how fast you can go...

http://www.ferrarichat.com/forum/showpost.php?p=141214671&postcount=1

 

I will remember this saying the next time someone buys a car

The reason why i asked also how much he is willing to pay is that at $1000 we have reconditioned bearings where as at $1800 we have new ones

 

Sorry for being new, what is the difference between a GT3 bearing and a regular 430 challenge bearing?

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sometimes yes it is the case .
I tried buying them which are skf bearings but cost me more then the Ferrari ones so i ended up buying the oem skf Ferrari one . The reason also is that because we supply a lot of Ferrari teams and if i were to give them the non oem items they will question my transaction .

 

Pictures of all the new and rebuilt units
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I've seen you drive that car, my dead grandmother was faster in her gopher

whilst she was dead

 

Guys,

Just FYI, the 360 GT and 430 GT3 center lock wheel bearings are exactly the same as the 430 Challenge hubs. They are made by SKF.s the
When buying used bearings the most important element is that the flanges are perfect with absolutely zero scoring on the surfaces..

Also worth checking with the main dealer since the prices of these parts direct from the factory has recently fell dramatically (just don't mention GT3...)

 

Ok, thanks for the info. I would never put used bearings on any of my challenge cars (just to be clear I don't own a challenge car, I just support them at the track and repair them off the track)
I wouldn't put them on anyone else's car for that matter!
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I am not sure I entirely agree with your position and here's my reasoning and rational justifications.

In this particular application there is absolutely nothing that can really go 'wrong' with these SKF bearing other than usual wear - which you'll easily notice with 'play' appearing when they go bad. It is actually very easy and clear to see once they are dismantled, you can see wear on the outer flanges (or not). It is not like they can fall off or anything so safety really is not an issue here especially if you have a rigorous inspection approach.

These wheel bearings are actually bolted together through the center and come apart in 2 distinct pieces once that bolt is removed. I know may challenge race teams (friends I trust) whom regularly disassemble, inspect and then re-grease them to ensure long lifespan. I would just advise to use new nuts though and ensure they are correctly torqued back up to workshop manual specs and fitted correctly [so they cannot come undone you strike a section so they are 'set'). (if anyone reading is interested in the torques let me know and I will dig them out).

Ofcourse its an entirely different matter to drive on worn bearings or used ones that you haven't verified as 'OK'. If you race on bad bearings your geometry will be all over the place (and it can be dangerous) and also make the car hard to position and prematurely wear the tires, i.e. you'll loose races.

Refreshing the grease can extend their lifespan by x4... Especially if you use top quality grease. Even relatively inexpensive (but dedicated wheel grease) can be fine, I've used lithium based ones with high melting point, specifically designed as a wheel bearing grease for use over a wide range of temperatures. E.g. Castrol LM.

T

 

Just to let you know that i have owned many challenge cars and i have always reconditioned my own bearings . Racing is expensive as it is . When you have to take money out of your own pocket you will soon see how expensive it becomes . If you can afford it then yes buy new . I have too watch my expenses so even i that sells all these products cant afford to install new one

 

Here is a picture of my bearings that i am revitalizing... Not many people do this and just replace them . We replace the bearing grease with a much better solution
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At the end of the day its just bearings against a flange. If both are in good condition, there is NO problem.

The problem comes if people just buy used bearings that haven't been re-conditioned the way both you and I do it (i.e. properly). Its quite a messy job though and quite time consuming (although not particularly difficult and without opening them up you risk the chance of buying knackered used bearings. I bought a few like that (which are just for the trash!) until I insisted to start looking at them split to see the flange before committing to buy them.

I've always been amazed how heavy these things are. I know they need to be super strong but surely some sort of alloy would be just as good as steel but lighter? Probably a whole lot more expensive too I guess. Still at least the weight on these is right in the center so not so much of a problem from unsprung weight perspective...

 

As these corners are derived from road car corners they're a lot heavier than they need to be. Our re engineered corners are a lot lighter.

http://www.ferrarichat.com/forum/141214671-post1.html

 

Jim,

I would dearly love to put these corners on my super light 360 project, no only because of the sheer focused passion and the fact they ooze pure quality and style but also the benefits you'd get from being able to get perfected geometry angles.... but... sadly until I do all the work myself (i.e. rent some time on my friends awesome HaaS CNC machine, do all the detailed CAD designs and basically do it all the R&D myself) there is no way I could afford someone elses bespoke efforts (maybe in 5 years from now...). However I am deeply impressed that you actually went this far in your amazing creations, I really am.

I really know how hard it is to reduce weight since over the past 8 years I have reduced my project cars original factory weight by a staggering 200kgs+ (440lbs) - which has been an enormous effort but just shows what is possible if you put in the effort. Its amazing how much of a difference it made to the feel of the car (night and day!). Weight loss improves everything and if anything just goes to show what's possible if you put your mind to it!

PS. Great CNBC video btw!

 

Thanks!

 

Yes, used bearings and reconditioned bearings are two different things.... Reconditioned bearings are fine as long as they are rebuilt by someone that knows the proper procedure.


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