Wheel bearing disintegrates - F800

[finestral]

There are three cases more in the spanish f800gs forum:


http://www.forof800gs.es/viewtopic.p...t=3283&p=48064
http://www.forof800gs.es/viewtopic.php?f=22&t=1005
http://www.forof800gs.es/viewtopic.php?f=22&t=1140

[RedUly]

Originally Posted by Murf2

What!, I thought only Uly's did that.

Murf2

You beat me to it.

[kkug]

I checked my bearings when I was replacing a tire. The rotor side was crunchy and I had the dealer replace it. 6K

[tmex]

I had a little over 6300 miles on the clock when the bearing failed. I never pressure washed the bike. I have done a few creek crossings, and I actually took a hose to it after a Death Valley ride.

My failure was on the rotor side. Looks like that bearing is held in place by a snap ring. The sprocket side just pops out right?

[jpooch00]

Originally Posted by Murf2

What!, I thought only Uly's did that.

Murf2

A thread just came up today on the Harley forum where the late model tourers are having this problem too, only on the front wheel. Go figure...

[ncooper]

Originally Posted by tmex

I had a little over 6300 miles on the clock when the bearing failed. I never pressure washed the bike. I have done a few creek crossings, and I actually took a hose to it after a Death Valley ride.

My failure was on the rotor side. Looks like that bearing is held in place by a snap ring. The sprocket side just pops out right?

Are you saying this is a easy replacement job in the field? I'm only familiar with changing out wheel bearings in 4x4's and they certainly aren't that easy on the vehicles I owned (or worked on).

[ROYAL COACHMAN]

Originally Posted by tmex

I had a little over 6300 miles on the clock when the bearing failed. I never pressure washed the bike. I have done a few creek crossings, and I actually took a hose to it after a Death Valley ride.

My failure was on the rotor side. Looks like that bearing is held in place by a snap ring. The sprocket side just pops out right?

My failure was on the rotor side also.
Pressure washed mine on one occasion after a messy ride, but never held the nozzle of the pressure washer closer than 2 ft. from bike.

I would be surprised if that was enough to cause failure.

Glen

[tmex]

Originally Posted by ncooper

Are you saying this is a easy replacement job in the field? I'm only familiar with changing out wheel bearings in 4x4's and they certainly aren't that easy on the vehicles I owned (or worked on).

Well...normally I would not carry spare wheel bearings or a snap ring pliers with me, but yes, if you have the spare bearings and the tools you should be able to do it in the field unless I am missing something here. I have not actually serviced a rear bearing on this particular bike, but I have replaced a fair number of wheel bearings in my garage.

[Boon Booni]

Originally Posted by tmex

Well...normally I would not carry spare wheel bearings or a snap ring pliers with me, but yes, if you have the spare bearings and the tools you should be able to do it in the field unless I am missing something here. I have not actually serviced a rear bearing on this particular bike, but I have replaced a fair number of wheel bearings in my garage.

Wonder if the bearings are just coming from the factory with too little grease? Are the hub/axle seals substantial, or are they relying on the integral seals of the bearings to keep moisture out?

I always spin check my bearings when I'm changing tires, but your failure at 6500 miles is way to quick to really even wear a tire out.

[]I)Money]

Originally Posted by Gramps

Wonder if the bearings are just coming from the factory with too little grease? Are the hub/axle seals substantial, or are they relying on the integral seals of the bearings to keep moisture out?

I always spin check my bearings when I'm changing tires, but your failure at 6500 miles is way to quick to really even wear a tire out.

Depends on the tires. 6500 miles is pretty much two rears for me.

[tmex]

Originally Posted by ]I)Money

Depends on the tires. 6500 miles is pretty much two rears for me.

Yeah, I am on my second rear, and I am planning to go to third before I remount the wheel. I cannot get more than 3k out of a rear knobbie. BTW, the bearings seemed fine when I mounted the current tire at about 3k.

[YetiGS]

Didn't ChiTown have a rear wheel bearing failure too?

[DockingPilot]

When will Toyota start making DS bikes ? Just imagine the 4Runner of motorcycles. Hanz and Franz would be out of business quickly I think. They should be embarrassed, I mean really.

[ABeef]

I changed tires out @ 2100 miles and the rear bearings needed to be replaced. The fronts were OK.

I thought that it might have been from over-torquing the rear axle - not now.

[Cumminsman76]

Originally Posted by snowscum

Chinese bearings.....

Are they? I worked at a place that moved its manufacturing over there and it wasn't pretty. I was in the R+D department so I saw first hand the failures.