SM465 Release Bearing Discussion

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Wilfred

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Hello,

I just purchased a new release bearing from NAPA its an SKF N4068. The part of the bearing where the clutch fork goes does not have the same "point". Does anyone know what this point is for? It seems to me that it keeps the bearing from spinning on the shaft of the transmission as this part of the bearing gets wider so it spins into the fork. See Photo
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The new bearing doesn't have the same point and it doesn't spin nearly as easliy as the old one. I worry about it spinning on the shaft of the transmission and wearing the clutch fingers. See Photo
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It looks like old grease on the "heavy duty" (the outer part of the bearing covers up the inside of the bearing) bearing as well......... WTF did I buy? Below is a youtube video I made that shows how noisey the old release bearing is when shaking it so evertime I hit a bump or there was some vibration, she would make a ton of noise. I feel like returning the new bearing and ordering from Summit, rarely have problems with there products. anyone know a part number from summit for a new release bearing?
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I think that point is just a pressure point where the fork has pushed in on the sheet metal 900 million times. As for the new one not spinning as easy,it shouldn't spin easy your old one spins easy because there's no grease in it. Run across a parking lot,it's easy,run through the shallow end of a pool,not so easy.
 
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Looks normal. Grease has stiction. That's a good thing. Run it.
 
squaredeal91

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I think it's to keep it from spinning on the fork maybe?

I've seen these and bought new ones with the point in the past.
 
bucket

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The point is supposed to be there. Well, let me rephrase that... it's there on purpose. I've removed many and installed many that had that point made into the collar. I think it will be fine without it though. Many applications use a bearing that doesn't have the point in it.
 
Wilfred

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If I knew what the point is used for it would better equip me to make a decision if I want to buy one with one or not. Another option would be to weld a point on the flange but that sounds potentially problematic... I would understand if you folks don't know - it is a pretty obscure question.
 
squaredeal91

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squaredeal91 said:
I think it's to keep it from spinning on the fork maybe?
Big _Betsy_Red said:
If I knew what the point is used for it would better equip me to make a decision if I want to buy one with one or not. Another option would be to weld a point on the flange but that sounds potentially problematic... I would understand if you folks don't know - it is a pretty obscure question.
Click to expand...
Click to expand...
 
bucket

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Big _Betsy_Red said:
If I knew what the point is used for it would better equip me to make a decision if I want to buy one with one or not. Another option would be to weld a point on the flange but that sounds potentially problematic... I would understand if you folks don't know - it is a pretty obscure question.
Click to expand...

It's to prevent it from spinning.
 
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As long as its trapped, it doesn't matter if it spins, its not going far and as soon as there's any real pressure the bearings are going to take care of the spinning.
 
Wilfred

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Id hate for the shaft to wear by the inner portion of the throwout bearing spinning on it. Too late now, she is all bolted up with the "heavy duty" throw out bearing.
 
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Big _Betsy_Red said:
Id hate for the shaft to wear by the inner portion of the throwout bearing spinning on it. Too late now, she is all bolted up with the "heavy duty" throw out bearing.
Click to expand...

Like I mentioned before, many applications do not have such a device to prevent the collar from spinning. They all seem to work fine.
 
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Big _Betsy_Red said:
Id hate for the shaft to wear by the inner portion of the throwout bearing spinning on it. Too late now, she is all bolted up with the "heavy duty" throw out bearing.
Click to expand...
It's not going to spin,when there's pressure on it, friction will hold it the bearings will do the spinning. When it's released it shouldn't be touching anything to spin it.
 
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