Worth replacing cones?
07-27-18, 08:14 AM
#1
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Worth replacing cones?
Hi,
I can't get the Deore front hub on my commuter adjusted to run free without excessive slop and I assume it is trashed. The best I can do is intermittent binding and an annoying click. I have no desire to replace it and I haven't cleaned it out for a real inspection. However, the cones are cheap and my question is would it be worth ordering and replacing them on the theory that the races aren't completely buggered?
Thanks.
I can't get the Deore front hub on my commuter adjusted to run free without excessive slop and I assume it is trashed. The best I can do is intermittent binding and an annoying click. I have no desire to replace it and I haven't cleaned it out for a real inspection. However, the cones are cheap and my question is would it be worth ordering and replacing them on the theory that the races aren't completely buggered?
Thanks.
07-27-18, 09:21 AM
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The races are as likely as the cones to be completely buggered.
07-27-18, 09:55 AM
#4
Senior Member
It takes 5 minutes to pull a front Shimano hub apart for a peek. The total operation of replacing the cones and balls, relubing and reassembly takes about 15.
it takes an extraordinary amount of abuse and neglect to kill the cups pressed into Shimano hubs. The cones and balls go well before this.
it takes an extraordinary amount of abuse and neglect to kill the cups pressed into Shimano hubs. The cones and balls go well before this.
07-27-18, 10:44 AM
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07-27-18, 11:20 AM
#7
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Maybe you have a bent axle?
07-27-18, 11:55 AM
#8
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07-27-18, 01:02 PM
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Hi,
I can't get the Deore front hub on my commuter adjusted to run free without excessive slop and I assume it is trashed. The best I can do is intermittent binding and an annoying click. I have no desire to replace it and I haven't cleaned it out for a real inspection. However, the cones are cheap and my question is would it be worth ordering and replacing them on the theory that the races aren't completely buggered?
Thanks.
I can't get the Deore front hub on my commuter adjusted to run free without excessive slop and I assume it is trashed. The best I can do is intermittent binding and an annoying click. I have no desire to replace it and I haven't cleaned it out for a real inspection. However, the cones are cheap and my question is would it be worth ordering and replacing them on the theory that the races aren't completely buggered?
Thanks.
07-27-18, 08:31 PM
#10
Senior Member
Open it up and clean it and inspect it. If the cups are pitted the hub is shot. The cones and bass can be replaced. If you do regular maintenance the hub will outlast the rim.
I overhaul mine every 2500 miles.
I overhaul mine every 2500 miles.
07-28-18, 02:18 AM
#11
Full Member
Also check the dustcaps. They can lead to similar symptoms if distorted or not seated properly. Specially if they are metal.
07-28-18, 02:24 AM
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07-28-18, 08:33 AM
#13
Senior Member
Hi,
I can't get the Deore front hub on my commuter adjusted to run free without excessive slop and I assume it is trashed. The best I can do is intermittent binding and an annoying click. I have no desire to replace it and I haven't cleaned it out for a real inspection. However, the cones are cheap and my question is would it be worth ordering and replacing them on the theory that the races aren't completely buggered?
Thanks.
I can't get the Deore front hub on my commuter adjusted to run free without excessive slop and I assume it is trashed. The best I can do is intermittent binding and an annoying click. I have no desire to replace it and I haven't cleaned it out for a real inspection. However, the cones are cheap and my question is would it be worth ordering and replacing them on the theory that the races aren't completely buggered?
Thanks.
my advice is to service the hub and replace the ball bearings and see how it goes. while at it, inspect the cones and races.
Of course you also can buy cones for $20 a piece and then what, you still don't clean the and inspect and install them in old and dirty grease?
07-29-18, 11:29 AM
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Any chance the number of bearing balls in one or both races is incorrect? Too few or too many?
07-29-18, 12:08 PM
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Should I buy replacement parts for a hub I haven't inspected?
Should I adjust the cones on a hub without opening it up, inspecting, replacing bearings and grease?
NO to both.
Should I adjust the cones on a hub without opening it up, inspecting, replacing bearings and grease?
NO to both.
07-30-18, 01:31 PM
#16
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Personal experience with Shimano hubs... worth every penny to pull it apart and replace the cones and balls. Both are cheap and I've had Shimano hubs last decades without damage to the cup race. The only time I've given up on replacing cones was when I ran into availability issues with pre-built Ultegra wheels. Even then, I started looking for similar part numbers from the EV sheets to try to find replacements.
07-30-18, 07:45 PM
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Cup and cone hubs are highly repairable and rebuild-able. Take a look, may just need balls and cleaning. If it needs cones, that's not a big deal either but should remind you to not let them go so long without service next time.
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Still stupid and seriously neglected..
Still stupid and seriously neglected..
