Replacing sealed bearings in BMX Bike hubs. 

For sure. Personally been on the hunt for one. Saves so much hassle since they don't need any maintenance.

@@tonynagle4194 you're welcome 👍

You're welcome, hope it helps

@@KamaarhKenn just done it I'm satisfied I never thought I can do this 😂

Nice. Pretty easy, huh?

Serial number for these is 6902RU / 6902RS. But pull the ones on your hub and check the side for the serial number on there. Some differ in size

Is this for 3/8 or 14mm.

The bearing dimensions are 15x28x7 millimeters.

Hahaha, thanks man. Hope the video was of help though.

Try adding wd40 or penetrating fluid and let it soak in

You can find a rod that fits in the axle and hit the bearing from the opposite side

@@KamaarhKenn but my problem is the axle still wont out at the first place..so how can i put a rod into it to push the bearing from inside?

I see. If it's a female hub like the one in the video, bolt up the axle bolt about halfway, then hit the heqd of the bolt to remove the bearing one side. Then you can use a rod to remove the bearing that's left on the hub

🙏🙏

No, this one is a few sizes larger

Like the outer shell of the bearing is stuck in the hub?

Yeah it was stuck, I already got it out, 💯

Aaahh, nice 👊

Totally, just gotta make sure you get the correct size bearing and you're good

@@KamaarhKenn appreciate

Where you get sealed bearings

Ali express. Just search the serial number on the bearing seal and you'll get a wide range of them on there

Thanks 🙏

They're sealed bearings from a company named KG. Size : 6902RS / 6902RU

The bearing serial number is 6902RS / 6902RU. It's pretty much standard size for most bikes and works for both front and rear hubs.

Kinda tricky since most guys I know have either 2 or 3 piece cranks. Haven't worked on one of those in a while either but I'll see what I can do.

6902RS

Hmmm, front or rear hub?

@@KamaarhKenn rear non sealed

For that one, take out the driver, all ball bearings and pawls, as well as the ball bearings on the Non-drive side. Once everything is off minus the spindle, thread one of the axle nuts onto the Non-drive side until it's flus with the end of the axle. (this will prevent accidentally ruining the threads) You can use a hammer or a rubber mallet to hit the axle end slowly pushing the axle towards the driver side. Depending on how often the cassette is serviced you might have to use just a bit more force. But once it's loose you can unthread the axle nut and the axle will be free. On it you'll see the sealed bearing locked in place with a long metal sleeve and a nut. All you have to do at this point is to undo the nut holding the sleeve, remove the sleeve itself and carefully remove the bearing.

In case you might need a visual of the process I have a video on assembling such a hub, you might be able to see what exactly the whole assembly looks like before you take anything apart. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-F6TvcyP9_qw.html Hope it helps