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Trouble with axle cones!! Help!

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Trouble with axle cones!! Help!

Old 10-20-16, 01:40 PM
  #1  
harhar100
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Trouble with axle cones!! Help!

Hello I am having a lot of trouble regarding finding a cone for my front wheel axle.

I recently moved to leipzig, Germany and purchased a cheap second hand bike from a friend, pretty old but actually really sturdy and in good nick. A few weeks later I bought some new tyres for both wheels as the old ones were totally worn out (plus numerous punctures) and I noticed that my front wheel axle was bent quite badly. Upon removal I also noticed that the threading for my front wheel axle has worn away making it pretty much useless.

After many attempts at finding a new axle which fits the front wheel forks, even buying a new wheel, I cannot find anything which will fit this bicycle.

The front wheel forks have a spacing of 10cm.

I have a picture of the original cones but the threading on the old axle has made it impossible to remove. I need to find cones similar to that pictured, I have also included measurement below which correspond to the letters in the attached image.

Even if someone could tell me what size to search for from this photo I would be grateful.


A = 14mm
B = 10mm
C = 5mm
D = 5mm
E = 10mm




Cheers !

Andrew
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Old 10-20-16, 01:58 PM
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fietsbob 
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You can get w whole axle assembly cones locknuts and all from the suppliers selling thru your local bike shop ..

Mine has a Bin with a variety in it.


I dont buy such common repair parts On Line so I cannot point out one Vs another , source there..

But use a Web search if that is how you prefer shopping (measure the bearing ball size Fronts vary, Rears are most always .25" balls.)

Knowing the brand of the Hubs themselves will Help

All front wheels except some folding bikes Use a 10cm wide axle. Usually 9mm diameter, thread pitch varies some. 24 per inch,
or 1 per mm are 2 different standards




'/,

Last edited by fietsbob; 10-20-16 at 02:02 PM.
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Old 10-20-16, 02:20 PM
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You can use a hacksaw/rotary tool to cut off the messed up portion of threads. No need to buy new cones until you try that, especially since they can be difficult-to-impossible to replace, being that many are cut for specific hubs.
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Old 10-20-16, 07:59 PM
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So maybe a description as to why the new parts, axle and the wheel, don't fit would help eliminate the options we might otherwise offer. Has a shop tried to fix this? We are not there. We can't see what you don't photo post. We can't measure what you have.


If the axle is bent and the cone won't come off then at the least a new axle and PAIR of cones (and lock nuts) are likely the least expensive step.


have you tried to look at the cone options on the Wheels manufacturing website yet? Andy.
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Old 10-20-16, 09:31 PM
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Dimension A - New cone can be that width or slightly smaller, not larger unless you are able to grind the dust cap to a larger diameter. If smaller you can use O rings to protect against dirt and water.

Dimension A1 (not shown) - This is the diameter of the wear ring on the cone where the bearings run. On a new cone a caliper set to that diameter needs to fall at least a mm or so away from the edge.

Dimension B - Actually needs to be slightly different than shown. What is important is the distance from the wear ring on the cone, not the bottom of the cone. In order to be able to fit a cone wrench on when assembled that distance from the wear ring diameter to the bottom of the cone flats must be no less than the current cone.

Dimension C - Again not exactly the important dimension. The measurement should be from the wear ring to the top of the cone. Can be smaller on the replacement, as you can add spacers. If larger you need to be able to remove spacers or find thinner spacer/locknut.

Of course the thread diameter and pitch must be the same.
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Old 10-20-16, 10:36 PM
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please post any info on the hub... brand name? model?... frankly, that cone has an odd bearing surface shape, much like a Shimano Parallax hub would use, or possibly an old Normandy hub... personally, i'm thinking the Normandy hub, since the ones i've had here had that raw, unfinished look to them, and that relaxed curve of the bearing surface is what points me to believe it's either the Normandy, or Parallax types... MIGHT be a Campy type, too... or older Dura-Ace? not many used around here, so..... please post a pic of the hub, at least. It is certainly NOT a "standard" cone design. and the standard kind will not work correctly, and in fact won't even fit.

Post a pic of the hub.

Last edited by maddog34; 10-20-16 at 10:43 PM.
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