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Old 09-02-2007, 05:20 AM   #1
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Default Boca bearing ultra seal

Anyone use these bearings? No maintenance sounds good to me what about performance?
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Old 09-02-2007, 05:25 AM   #2
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Yes the bearings are very smooth. They have a seal that lays in back of the shield that does not allow foreign matter into the bearing. They have standard and ceramic as well. They are the original company to come out with this stle seal as well as the yellow seal bearings and also the green seals. And the best thing is that they stand behind there products.
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Old 09-02-2007, 08:37 AM   #3
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I had yellow seal bearings in my cyclone, after a month I switched to steal bearings. I could't get them smooth. When running mod class you need very smooth car and these bearings gave too much roll resistance.
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Old 09-02-2007, 10:16 AM   #4
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Boca bearings are probably the best bearings in the business. They last a very very long time. I personally use green seals in everything, they are VERY smooth, yet there is a little resistance, but id rather that than them blowing up. However I run nitro buggy and will be running electric TC on pavement.
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Old 09-02-2007, 12:08 PM   #5
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There are different bearing applications for different things. The ultra seals were designed for no contact with no friction movement. If you are running on road electric there really are two choices for this. Ultra seals or sheilded. The yellow and green seals are true SEALED bearings. Minimal contact seal but still a seal. The bearings you get in most of the kits now may as well be called rubber shielded. When you see daylight through a rubber "seal' that is not sealed. Also the sealed bearings come with a grease in them from the factory and this can be easily cleaned out and light oil be added. The seals due have to break in so it takes a bit to seat. But the answer is still it is a sealed bearing and you cannot have a seal without some kind of contact.
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Old 06-14-2011, 11:35 PM   #6
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Are there any specific break-in procedures for these bearings, especially the yellow seal ones? How long would a set of yellow seal ones last in a 1/8th nitro buggy/truggy that is being raced approximately once a month?
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