That cone is long dead. Check the cups in the hub to see if new balls and cones will do the trick or if the hub is worn out.
oldfrancis on
Zero. The correct answer is zero.
Once the race becomes pitted it needs to be replaced.
UrIsNotAWord on
>How many miles left on this bearing?
Actually it’s called a *cone*, and the one in the pic needs to be replaced.
What’s the make and model of the hub?
redhouse_bikes on
You’re good. At least 3 or 4.
MGTS on
Negative 200
ANY amount of pitting is a dead bearing race
CanDockerz on
It’s fine to use but I’d replace it when you can, nothing bad will happen if you use it as worst case the wheel may feel a little bit graunchy but it won’t seize or fall off etc.
Unfortunately that cone is complete trash and wasn’t fitted correctly which has caused excessive wear.
MrHamburgers22 on
When you say how many miles, do you mean how many good miles or how many miles will it continue to physically work? Those are 2 very different answers. First answer is 0. Second is probably 4 or 5 years, depending how often you ride.
weindl on
2 inches I say, maybe 3
Academic-Actuator190 on
Considering reolacing it costs next to nothing it makes sense to change to a new one.
Jmcconn110 on
Just buy new ones, i tried to reuse some in this condition and they roared worse with new ball bearings than with the old worn out ones.
drewbaccaAWD on
You can keep using it along with new bearing balls which will wear faster. It is unlikely to be smooth from the start… so basically, she’s already dead.
Since typically only the surface is hardened, you likely can’t sand/grind it down either.
Hopefully it’s not ancient and you can easily find replacement cones. Finding new replacement cones isn’t always an option unless you bought spare parts or a second hub while an old hub is in production. Not that you couldn’t use some other cone assuming size/dimensions match up but that’s a matching game best avoided; I usually end up replacing wheels with new hubs but might have been unlucky in that department.
11 Comments
That cone is long dead. Check the cups in the hub to see if new balls and cones will do the trick or if the hub is worn out.
Zero. The correct answer is zero.
Once the race becomes pitted it needs to be replaced.
>How many miles left on this bearing?
Actually it’s called a *cone*, and the one in the pic needs to be replaced.
What’s the make and model of the hub?
You’re good. At least 3 or 4.
Negative 200
ANY amount of pitting is a dead bearing race
It’s fine to use but I’d replace it when you can, nothing bad will happen if you use it as worst case the wheel may feel a little bit graunchy but it won’t seize or fall off etc.
Unfortunately that cone is complete trash and wasn’t fitted correctly which has caused excessive wear.
When you say how many miles, do you mean how many good miles or how many miles will it continue to physically work? Those are 2 very different answers. First answer is 0. Second is probably 4 or 5 years, depending how often you ride.
2 inches I say, maybe 3
Considering reolacing it costs next to nothing it makes sense to change to a new one.
Just buy new ones, i tried to reuse some in this condition and they roared worse with new ball bearings than with the old worn out ones.
You can keep using it along with new bearing balls which will wear faster. It is unlikely to be smooth from the start… so basically, she’s already dead.
Since typically only the surface is hardened, you likely can’t sand/grind it down either.
Hopefully it’s not ancient and you can easily find replacement cones. Finding new replacement cones isn’t always an option unless you bought spare parts or a second hub while an old hub is in production. Not that you couldn’t use some other cone assuming size/dimensions match up but that’s a matching game best avoided; I usually end up replacing wheels with new hubs but might have been unlucky in that department.