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Posted

I don't believe anyone has stated that regreasing a worn or pitted bearing is going to 'fix' the bearing or extend its life. It would need to be replaced. I think we ALL agree on this.

 

I think the point people are trying to make is that a bearing that is still good (i.e. not worn and not pitted), but has the old grease (which will have some dirt in it) cleaned out and replaced with clean grease will last longer than if the cleaning/regreasing exercise was not carried out.

 

 

The point is if its got dirt in it, its due for replacement. Those bearings are not dirt tolerant. The mechanism of keeping dirt out is to ease grease out under pressure when the bearing is in motion. At our low speed once the dirt gets in, there is not sufficient pressure to squeeze the dirt out again. The bearing is wearing. and by the time you get to it, its really time for replacement. If your bearing is pitted its way past worn.

 

These are NOT preloaded cup and cone bearings where the preload provides necessary pressure to force grease and oil out to keep the dirt out.

 

but please continue arguing because its really quite amusing already

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Posted

The point is if its got dirt in it, its due for replacement. Those bearings are not dirt tolerant. The mechanism of keeping dirt out is to ease grease out under pressure when the bearing is in motion. At our low speed once the dirt gets in, there is not sufficient pressure to squeeze the dirt out again. The bearing is wearing. and by the time you get to it, its really time for replacement. If your bearing is pitted its way past worn.

 

These are NOT preloaded cup and cone bearings where the preload provides necessary pressure to force grease and oil out to keep the dirt out.

 

but please continue arguing because its really quite amusing already

 

you are AMAZING, please can i be like you :wub:

Posted (edited)

you are AMAZING, please can i be like you :wub:

 

The amazing thing about a thread like this and life in general.

Guys like Golefty who actually speaks with logic, sense and an engineering mind, will be sitting back and smiling when the rope you have chokes you around the neck.

The real funny part is, when you get to around 40 or a reasonable age where your frame of mind is that of a man who understands things, you will look back on this and have a good chuckle at yourselves as well.

Good luck boys.

Edited by Wyatt Earp
Posted

The amazing thing about a thread like this and life in general.

Guys like Golefty who actually speaks with logic, sense and an engineering mind, will be sitting back and smiling when the rope you have chokes you around the neck.

The real funny part is, when you get to around 40 or a reasonable age where your frame of mind is that of a man who understands things, you will look back on this and have a good chuckle at yourselves as well.

Good luck boys.

 

Age unfortunately is not a good yardstick to use, like wine, some mature with age others just go rancid.

Posted

will be sitting back and smiling when the rope you have chokes you around the neck.

 

Wyatt, you think its appropriate to be alluding to users of thehub hanging themselves with a rope.

 

Is that thehub forum you aspire to, where other users must go hang themselves if they don't conform to your view of the world?

 

We are discussing bicycle bearings.

Posted

Back to the topic.

 

Anyone not clear on how easy it is to clean and regrease a headset or BB sealed bearing at the same time that you take off the fork or crank to do some other work?

 

There's lazy and then there's lazy, nothing worthwhile comes easy.

 

I personally would not remove a hub bearing or any bearing that needs to be pressed in just to service it, I'd service it in place. I know that's common sense talking but considering some previous posts its worth mentioning.

 

The key with this process is catching the contamination early, if you fall over in a river or get caught in a mud bath know that your bearings should really get some maintenance just about straightaway when you get home. Leave it for a few days or weeks and the window to prevent damage to your bearings is probably closed and new bearings will be in order. If the lbs fit the new bearings and they are branded bike bearing know it will be a hugely expensive exercise. Preventative maintenance is the key to keeping you out of the lbs and saving your hard earned bucks. Stainless steel bearings can take contamination like water better than plain steel bearings but if you leave them unserviced for too long after water ingress they to will be tickets.

 

 

 

Posted

This thread is becoming over bearing.......just going around and around and around.......at more than 40......

 

.........do whatever you guys want.......at the end it is all about the confidence you have in your equipment and that it won't let you down when it really matters. I will much rather apply "RTFM principles" and make sure the crucial stuff on the bike is according to specs......or even better. If that what needs to spin does not perform properly, you will be going straight to nowhere.......and possibly a BIG hole in the wallet.

Posted

 

Wyatt, you think its appropriate to be alluding to users of thehub hanging themselves with a rope.

 

Is that thehub forum you aspire to, where other users must go hang themselves if they don't conform to your view of the world?

 

We are discussing bicycle bearings.

 

Chill dude, you took that hanging literally? Just so you understand what it means ...

 

There is a play on words in the proverb, for ‘rope’ has two meanings: (a) a length of stout cordage as used for hanging, which was a penalty of theft in olden days; and (b) liberty of action.

 

In this case B is intended ....

Posted

Back to the topic.

 

Anyone not clear on how easy it is to clean and regrease a headset or BB sealed bearing at the same time that you take off the fork or crank to do some other work?

 

There's lazy and then there's lazy, nothing worthwhile comes easy.

 

I personally would not remove a hub bearing or any bearing that needs to be pressed in just to service it, I'd service it in place. I know that's common sense talking but considering some previous posts its worth mentioning.

 

 

 

Eish, the rope and Paarl Perle is strong in this one.

This throws all your credibility and debates right down the proverbial tube.

 

Don't forget it's 2RS not 1 RS and if to be "serviced" by your logic, you would have to remove both (HARD PLASTIC) with a rubber coating seals in order to clean the bearing out properly and applying the famous Skylark service grease.

 

And with that, I think we can close this thread :lol: :lol:

Posted

Chill dude, you took that hanging literally? Just so you understand what it means ...

 

There is a play on words in the proverb, for ‘rope’ has two meanings: (a) a length of stout cordage as used for hanging, which was a penalty of theft in olden days; and (b) liberty of action.

 

In this case B is intended ....

 

Die breinkrag is laag, hy sukkel so bietjie.

Posted (edited)

Well both the Pinkbike and Transworld Motocross tech experts seem to think that this method of bearing maintenance is worthwhile.

 

In fact Transworld even state:

 

"The best time to grease up your wheel bearings is when your bike is new. Wheel bearings come from the factory with minimal amounts of grease..."

 

(something to this effect was mentioned earlier in this thread and was poo-pooed)

 

 

 

All this is so confusing?! Who are we to we believe?

I guess the real question is...

 

 

 

 

post-10758-0-09270000-1409895802_thumb.jpg

 

Happy Friday Everyone with Bearings!! :lol:

Edited by patches
Posted

Well both the Pinkbike and Transworld Motocross tech experts seem to think that this method of bearing maintenance is worthwhile.

 

In fact Transworld even state:

 

"The best time to grease up your wheel bearings is when your bike is new. Wheel bearings come from the factory with minimal amounts of grease..."

 

(something to this effect was mentioned earlier in this thread and was poo-pooed)

 

 

 

All this is so confusing?! Who are we to we believe?

I guess the real question is...

 

 

 

 

post-10758-0-09270000-1409895802_thumb.jpg

 

Happy Friday Everyone with Bearings!! :lol:

 

 

Oi vey, now we have massive conundrum.

Who do we believe, an editor or writer from Pinkbike and Transworld, the OP, the Sheriff or google or our grandmothers.

This has now become a catch 22 :eek:

 

What is gospel and what is myth ?

I am now totally confused, the OP made mention of how many millions these companies spend on their manufacturing of bearings , yet they leave something as trivial as "enough grease" out of their quality process ?

Travesty !!!!!

 

On a more serious note, on the MX bearings I can still see some sense and logic behind it, the balls are only a "little bit" bigger than the ones we get on our uber expensive bicycles.

So because an article in another magazine or forum says "it is so" then it must be gospel.

 

The confusion, I can't wait to get back to Jo' Burg on Monday, I feel sorry for very single bearing my bicycle has.

I feel even more pity on those guys where double bearings are beings used, just remember that will technically make it 2RS X 2 IE 4RS if we need to become really precise.

Removing the top seal will have a great impact.

Posted

 

Chill dude, you took that hanging literally? Just so you understand what it means ...

 

There is a play on words in the proverb, for ‘rope’ has two meanings: (a) a length of stout cordage as used for hanging, which was a penalty of theft in olden days; and (b) liberty of action.

 

In this case B is intended ....

 

I didn't say that I personally took it literally.

But Wyatt certainly did "will be sitting back and smiling when the rope you have chokes you around the neck"

Can only assume he's referring to (a) not (b) when he went into such graphic detail.

 

Posted

 

 

 

The point is if its got dirt in it, its due for replacement. Those bearings are not dirt tolerant. The mechanism of keeping dirt out is to ease grease out under pressure when the bearing is in motion. At our low speed once the dirt gets in, there is not sufficient pressure to squeeze the dirt out again. The bearing is wearing. and by the time you get to it, its really time for replacement. If your bearing is pitted its way past worn.

 

These are NOT preloaded cup and cone bearings where the preload provides necessary pressure to force grease and oil out to keep the dirt out.

 

but please continue arguing because its really quite amusing already

 

How are cup & cone bearings under 'pressure'? If you are applying enough preload to apply pressure to the bearings I'm afraid you're going to cause those bearings, along with the cup & cone to wear prematurely. The cone should not apply any pressure to the bearings. It should simply be advanced far enough that there is no play between the bearings & the cone.

 

What's the feeling on the CK bearings that are also low speed bearings? Since they fall into the same boat as the normal bicycle sealed bearings which don't spin fast enough to generate 'pressure'? Should be serviced? Don't touch them ever?

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