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Scratches on Brand New Bearings

Dil-Dog
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Dil-Dog Collaborator

Dil-Dog

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I bought brand new bearings from ACL and the box was opened was kinda squished and 2 bearings were squeezed together and as a result ,creates this.☠️  I gathered some opinions from other groups and forums but sau is by far the best and i trust you guys the most.  Soo whats my verdict. .... F*cked or Not? I cant feel them. 

 

FullSizeRender.mov

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GTSBoy Grand Master

GTSBoy

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I'm not the only one that can't see the video.

Note that bearings generally have a sacrificial tin layer. If the scratches are just in that, then they could be OK. But, as above, if the intention is to make a lot of power, then no doubts should be built into the engine as assembly time.

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Dil-Dog Collaborator

Dil-Dog

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Gentlemen... thanks for the reply, i attached some screen shots of the same video that u guys cant see. They are not as bad as it may seem as the flash light is quite bright but non the less, tell me what yall think. They came from one bearing squeezing the next and cant be felt be my nail

FFCF7964-743D-490F-9D0D-4C98526DBA85.png

D185F25D-42DF-484F-95B6-0C24E11153CB.png

38F25CF3-3056-4ABC-AB93-781AC1E252D3.png

16CA0F01-DC7B-4A63-ABF1-6D0D51401EE7.png

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PLYNX Mentor

PLYNX

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I've always been very cautious when it comes to engine bearings.

Look at it this way, if your turning the motor to 7000rpm it means the crank will rotate 116 times a second.

Any bearing issues and the entire motor may well suffer a catastrophic failure.

You have to weigh up the cost of the bearings in question against a possible cost of a new rebuild or even a new motor.

Can you return them and get them re-supplied ?

 

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