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Ball Bearings ZZ (Metal shield)

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Hi guys. Got me a set of flanged bearings (4x7x2.5mm) and it is the first time I am not able to remove the metal shields. I had the same bearings from the same source already and it was possible to remove the circlip and shields as usual.

Anyone ever had this kind of bearings?

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Ok. No one had anything to say but I figured out a thing. My local store, mainly bearings fpr RC, did had a different supplyer a while ago. Seems like some (his new) fabricants do ZZ bearings with non removeable shield.

Thats strange and very new to me. Cheers.

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Just out of curiosity, why do you remove the shields? Is it to de-grease them or clean them or do you run them without shields inside gear boxes?

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22 hours ago, Otis311 said:

Just out of curiosity, why do you remove the shields? Is it to de-grease them or clean them or do you run them without shields inside gear boxes?

Exactly. Sometimes I need dry bearings. Sometimes I need no shield (gearbox), sometimes I want to clean them.

 

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10 hours ago, BattleTrak said:

 

10 hours ago, BattleTrak said:

Wow..first time I’ve heard of non removable metal shields.   Do you know what brand they are?

I receive them in unlabeled bags.

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