Warning: Fractured Wheel Bearing

SpudRider · 04-11-2016, 04:09 AM

Several days ago I replaced the Shinko 244 tire on my rear wheel. I always inspect every part of the wheel every time I remove a wheel, or replace a tire. The rear hub has two bearings, and the bearing near the rear sprocket was completely fractured.

I needed to cut the outer race of the fractured bearing with my dremel tool in order to remove it from the hub.

The bearing on the other side, near the brake rotor, was notchy, and ready to fail. I replaced both Chinese bearings with Japanese bearings, which I had in stock for the original hub of my Zongshen ZS200GY-2.

The bearing in the sprocket carrier was in good condition.

The stock bearings have very little grease in them. I packed the new Japanese bearings with extra grease before I installed them.

I have ridden over 13,000 miles on my RX3. However, I encourage everyone to check the wheel bearings, no matter how low your mileage. It is much easier to punch out a wheel bearing before it fractures.

I will post photographs of both Chinese bearings tomorrow.

Juanro · 04-11-2016, 05:53 AM

Spud, please post bearing size or code, thanks

SpudRider · 04-11-2016, 06:03 AM

Quote:

Originally Posted by Juanro

Spud, please post bearing size or code, thanks

Post Edited to Correct Errors

Since you are in Argentina, you might have an earlier version of the rear hub. It contains the following bearings.

Rear Hub Bearing Sizes

Rear Hub Bearing, Sprocket Side: 6202 2RS
Rear Hub Bearing, Brake Rotor Side: 6302 2RS

Sprocket Carrier Bearing: 6004 2RS

However, CSC, Cyclone RX3 motorcycles sold in the United States contain the following bearings.

Rear Hub Bearing Sizes

Rear Hub Bearing, Sprocket Side: Two 6202 2RS Bearings
Rear Hub Bearing, Brake Rotor Side: Two 6302 2RS Bearings

Sprocket Carrier Bearing: 6004 2RS

SpudRider · 04-11-2016, 07:19 AM

If you replace a worn bearing before it fractures, you can easily remove it. I prefer to drive out wheel bearings using a Motion Pro bearing driver and split collet. The bearings in the rear wheel of the RX3 can be removed using the following parts.

http://www.motionpro.com/motorcycle/partno/08-0260/

http://www.motionpro.com/motorcycle/partno/08-0268/

Just in case someone hasn't used this method to remove wheel bearings, here's how it works.

SpudRider · 04-11-2016, 07:26 AM

I have bought individual drivers and split collets for the different sizes of wheel bearings in all my motorcycles. However, if I were buying the bearing drivers today, I would get the Pit Posse Motorcycle Wheel Bearing Remover Kit, PP-1692.

http://www.amazon.com/Pit-Posse-Moto.../dp/B005SUVQUK

http://www.ebay.com/itm/Motorcycle-W...ZyimIg&vxp=mtr

SpudRider · 04-11-2016, 08:01 AM

You can decipher the bearing code by reading the information at the following links.

http://www.gizmology.net/bearings.htm
http://www.mymachineinfo.com/2015/07...ion-guide.html
http://www.engineerstudent.co.uk/bea...explained.html
http://www.engineerstudent.co.uk/bea...plained_2.html

For example, a 6202 2RS bearing has the following features.

6 = Deep Groove Ball Bearing (Single row)
2 = Light Duty Bearing
02 = Inner Race Diameter of 15 mm
2RS = 2 Rubber Seals

SpudRider · 04-11-2016, 08:17 AM

Wheel bearings fail more quickly when they lack sufficient grease, and every wheel bearing I have examined suffers from this deficit.

For example, here is a new wheel bearing I was going to install in one of my Honda motorcycles.

Therefore, I always pry off both rubber seals, and add more grease to the wheel bearing before I install it.

SpudRider · 04-11-2016, 08:20 AM

Using a bearing driver makes it much easier to remove old bearings.

Just make sure you get the correct size driver and collet for the bearings you wish to remove.

Juanro · 04-11-2016, 09:03 AM

Very complete information, thanks!

I use my own method to remove bearings, paraphrasing Homer Simpson, there's the right method (yours), the wrong method, and mine, it's like the wrong but slower and with lots of swearing!

Lee R · 04-11-2016, 10:40 AM

Thanks for the warning Spud. I'll replace mine on the first tire change as a precaution. I ride in lots of mud and water so the bearings probably won't last.

Juanro · 04-11-2016, 10:47 AM

Lee, I do also, my bearings have 16K km on them and they're smooth as silk, but as you said it's cheap insurance to change them anyway.

Juanro · 04-11-2016, 10:54 AM

Is this info on the sticky thread about parts? I was about to ask about front bearings also.

dpl096 · 04-11-2016, 11:15 AM

This is why this place rocks! Did you put the rubber seals back on afterwards ?

Thanx Spud

SpudRider · 04-11-2016, 11:27 AM

Quote:

Originally Posted by Juanro

Very complete information, thanks!

I use my own method to remove bearings, paraphrasing Homer Simpson, there's the right method (yours), the wrong method, and mine, it's like the wrong but slower and with lots of swearing!

Azhule · 04-11-2016, 11:59 AM

Anchor Bolts and a slide hammer (or a anchor bolt, hammer, and punch combo) can also be used to remove Old Wheel Bearings

and they only cost about $1 or so for the size of bearings our bikes use

04-11-2016, 04:09 AM	#1
SpudRider Join Date: Jul 2008 Location: Idaho Posts: 25,054	Warning: Fractured Wheel Bearing Several days ago I replaced the Shinko 244 tire on my rear wheel. I always inspect every part of the wheel every time I remove a wheel, or replace a tire. The rear hub has two bearings, and the bearing near the rear sprocket was completely fractured. I needed to cut the outer race of the fractured bearing with my dremel tool in order to remove it from the hub. The bearing on the other side, near the brake rotor, was notchy, and ready to fail. I replaced both Chinese bearings with Japanese bearings, which I had in stock for the original hub of my Zongshen ZS200GY-2. The bearing in the sprocket carrier was in good condition. The stock bearings have very little grease in them. I packed the new Japanese bearings with extra grease before I installed them. I have ridden over 13,000 miles on my RX3. However, I encourage everyone to check the wheel bearings, no matter how low your mileage. It is much easier to punch out a wheel bearing before it fractures. I will post photographs of both Chinese bearings tomorrow. __________________ Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894
	0

04-11-2016, 07:19 AM	#4
SpudRider Join Date: Jul 2008 Location: Idaho Posts: 25,054	If you replace a worn bearing before it fractures, you can easily remove it. I prefer to drive out wheel bearings using a Motion Pro bearing driver and split collet. The bearings in the rear wheel of the RX3 can be removed using the following parts. http://www.motionpro.com/motorcycle/partno/08-0260/ http://www.motionpro.com/motorcycle/partno/08-0268/ Just in case someone hasn't used this method to remove wheel bearings, here's how it works. __________________ Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894
	0

04-11-2016, 07:26 AM	#5
SpudRider Join Date: Jul 2008 Location: Idaho Posts: 25,054	I have bought individual drivers and split collets for the different sizes of wheel bearings in all my motorcycles. However, if I were buying the bearing drivers today, I would get the Pit Posse Motorcycle Wheel Bearing Remover Kit, PP-1692. http://www.amazon.com/Pit-Posse-Moto.../dp/B005SUVQUK http://www.ebay.com/itm/Motorcycle-W...ZyimIg&vxp=mtr __________________ Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894
	0

04-11-2016, 08:01 AM	#6
SpudRider Join Date: Jul 2008 Location: Idaho Posts: 25,054	You can decipher the bearing code by reading the information at the following links. http://www.gizmology.net/bearings.htm http://www.mymachineinfo.com/2015/07...ion-guide.html http://www.engineerstudent.co.uk/bea...explained.html http://www.engineerstudent.co.uk/bea...plained_2.html For example, a 6202 2RS bearing has the following features. 6 = Deep Groove Ball Bearing (Single row) 2 = Light Duty Bearing 02 = Inner Race Diameter of 15 mm 2RS = 2 Rubber Seals __________________ Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894
	0

04-11-2016, 08:17 AM	#7
SpudRider Join Date: Jul 2008 Location: Idaho Posts: 25,054	Wheel bearings fail more quickly when they lack sufficient grease, and every wheel bearing I have examined suffers from this deficit. For example, here is a new wheel bearing I was going to install in one of my Honda motorcycles. Therefore, I always pry off both rubber seals, and add more grease to the wheel bearing before I install it. __________________ Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894
	3

04-11-2016, 05:53 AM	#2
Juanro Join Date: Oct 2015 Posts: 321	Spud, please post bearing size or code, thanks
	0

04-11-2016, 08:20 AM	#8
SpudRider Join Date: Jul 2008 Location: Idaho Posts: 25,054	Using a bearing driver makes it much easier to remove old bearings. Just make sure you get the correct size driver and collet for the bearings you wish to remove. __________________ Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894
	1

04-11-2016, 09:03 AM	#9
Juanro Join Date: Oct 2015 Posts: 321	Very complete information, thanks! I use my own method to remove bearings, paraphrasing Homer Simpson, there's the right method (yours), the wrong method, and mine, it's like the wrong but slower and with lots of swearing!
	2

04-11-2016, 10:40 AM	#10
Lee R Join Date: Aug 2015 Location: Upstate NY Posts: 343	Thanks for the warning Spud. I'll replace mine on the first tire change as a precaution. I ride in lots of mud and water so the bearings probably won't last.
	1

04-11-2016, 10:47 AM	#11
Juanro Join Date: Oct 2015 Posts: 321	Lee, I do also, my bearings have 16K km on them and they're smooth as silk, but as you said it's cheap insurance to change them anyway.
	0

04-11-2016, 10:54 AM	#12
Juanro Join Date: Oct 2015 Posts: 321	Is this info on the sticky thread about parts? I was about to ask about front bearings also.
	0

04-11-2016, 11:15 AM	#13
dpl096 Join Date: Sep 2015 Location: East Central Hellinois Posts: 1,344	great write up This is why this place rocks! Did you put the rubber seals back on afterwards ? Thanx Spud Last edited by dpl096; 04-11-2016 at 11:53 AM.
	1

04-11-2016, 11:59 AM	#15
Azhule Join Date: Dec 2015 Location: CO Posts: 1,525	Anchor Bolts and a slide hammer (or a anchor bolt, hammer, and punch combo) can also be used to remove Old Wheel Bearings and they only cost about $1 or so for the size of bearings our bikes use __________________ "Think as you like... but this self proclaimed Professor is always right" - Buckshot "You never know what someone is hiding beneath their smile..." - NinjaTom - R.I.P.
	2