Axle diameters
#1
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Axle diameters
Can any diameter nut axle work with a wheel?
Some hubs are skinny but as long as the axle doesn't rub against the hub while its perfectly straight through it than its possible? If the axle is bigger in diameter, and since cones are slightly slanted, the bearings would rub higher up on the smaller diameter part of the cone...In which case a bearing might pop out? Could you solve this problem by getting a smaller diameter (but same thread size ofcourse) cone, and or just get smaller bearings??
I have an old bicycle wheel from the 1980s or 90s, 27 *1/1/4. I stripped its axle so I'm wondering which spare axle I should use thanks
Some hubs are skinny but as long as the axle doesn't rub against the hub while its perfectly straight through it than its possible? If the axle is bigger in diameter, and since cones are slightly slanted, the bearings would rub higher up on the smaller diameter part of the cone...In which case a bearing might pop out? Could you solve this problem by getting a smaller diameter (but same thread size ofcourse) cone, and or just get smaller bearings??
I have an old bicycle wheel from the 1980s or 90s, 27 *1/1/4. I stripped its axle so I'm wondering which spare axle I should use thanks
#2
Mechanic/Tourist
It's difficult to help you with such a muddling of bike terminology and the English language (no such thing as a "nut axle") but I'll make a stab at it. The best option is to obtain an axle that is the same diameter (inches or MM) and pitch (threads per inch or mm). If the cones are still in good shape then you're done. If you have to replace axle and cones then complications arise, including where the balls run on the cone and the dust cap (has have larger inside diameter than the cone but outside has to be specific size to fit into the hub). Take the axle to a bike shop, or if nothing near, test nuts at a hardware store to find out what the threading and diameter is and order the right one (including at least as long as the present one).
Last edited by cny-bikeman; 05-02-17 at 04:00 AM.
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There are a number of thread possibilities, all looking pretty similar.
Common on many better bikes is a metric 10x1mm thread. Others include 3/8"x either 24 or 26tpi.
You have to match the thread exactly, otherwise, you'll make things worse rather than better. Bring whatever is good to a bike shop, and they'll fit possible matches trial and error, to find EXACTLY what you need.
Common on many better bikes is a metric 10x1mm thread. Others include 3/8"x either 24 or 26tpi.
You have to match the thread exactly, otherwise, you'll make things worse rather than better. Bring whatever is good to a bike shop, and they'll fit possible matches trial and error, to find EXACTLY what you need.
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What brand of hub? is there a brand name, or any numbers stamped in the center of the hub body? front, or rear hub?
and a 27" WHEEL says that it's more likely from the 70's, or even earlier.
and you NEED the CORRECT cones and matching size of bearing balls.... sounds kinda like you are trying to stuff a rear axle SET into a FRONT axle... bad idea!
and a 27" WHEEL says that it's more likely from the 70's, or even earlier.
and you NEED the CORRECT cones and matching size of bearing balls.... sounds kinda like you are trying to stuff a rear axle SET into a FRONT axle... bad idea!
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There are a number of thread possibilities, all looking pretty similar.
Common on many better bikes is a metric 10x1mm thread. Others include 3/8"x either 24 or 26tpi.
You have to match the thread exactly, otherwise, you'll make things worse rather than better. Bring whatever is good to a bike shop, and they'll fit possible matches trial and error, to find EXACTLY what you need.
Common on many better bikes is a metric 10x1mm thread. Others include 3/8"x either 24 or 26tpi.
You have to match the thread exactly, otherwise, you'll make things worse rather than better. Bring whatever is good to a bike shop, and they'll fit possible matches trial and error, to find EXACTLY what you need.
What brand of hub? is there a brand name, or any numbers stamped in the center of the hub body? front, or rear hub?
and a 27" WHEEL says that it's more likely from the 70's, or even earlier.
and you NEED the CORRECT cones and matching size of bearing balls.... sounds kinda like you are trying to stuff a rear axle SET into a FRONT axle... bad idea!
and a 27" WHEEL says that it's more likely from the 70's, or even earlier.
and you NEED the CORRECT cones and matching size of bearing balls.... sounds kinda like you are trying to stuff a rear axle SET into a FRONT axle... bad idea!
#6
Really Old Senior Member
If it has multiple cogs, it's a 10mmx1mm axle.
VERY common.
It'll be either solid and use nuts
or
Hollow, using a Quick Release.
Just get the correct length needed.
VERY common.
It'll be either solid and use nuts
or
Hollow, using a Quick Release.
Just get the correct length needed.
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Since you say it's a Shimano hub, odds greatly favor it being a 10x1 axle, which should be the most available replacement in Singapore. So, odds are you don't have to get involved in trying to match up some complete kit with cones and nuts.
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No one will knowingly accept the liability of changing the design for you. We are all going to say to follow the manufacturer's design, or come up with something where you and only you are accepting the liability.
More technical: the wheel bearings are angular contact, as the angle is changed, the radial and axial stiffness and strength vary. Cups and cones are manufactured to work with a very limited range of ball sizes and ball track radii. Depending on how the particular cup (or cone) is made, catastrophic failure may result in using the part outside it's intended design.
Smaller balls will result in higher stress concentrations. Sufficiently larger ball (<~10% oversize or more) will not mate properly with the cup/cone surface and may have multiple wear tracks. One of these might be a rolling track (good) and the others will be sliding tracks (very bad).
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Alright I give in seems too complicated this axial stiffness and come angle business. The closest cone match I got were ones where the ends rubbed against my dust caps ;/ I took the dust caps off so I can ride it for now lol
Thanks for the replies
Does knowing that it's a 10*1mm axle and Shimano hub automatically give me the exact cones I need? I'd prefer to order online than take it to a bike shop
Thanks for the replies
Does knowing that it's a 10*1mm axle and Shimano hub automatically give me the exact cones I need? I'd prefer to order online than take it to a bike shop
#10
Really Old Senior Member
Alright I give in seems too complicated this axial stiffness and come angle business. The closest cone match I got were ones where the ends rubbed against my dust caps ;/ I took the dust caps off so I can ride it for now lol
Thanks for the replies
Does knowing that it's a 10*1mm axle and Shimano hub automatically give me the exact cones I need? I'd prefer to order online than take it to a bike shop
Thanks for the replies
Does knowing that it's a 10*1mm axle and Shimano hub automatically give me the exact cones I need? I'd prefer to order online than take it to a bike shop
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Because you will not get the intended strength and stiffness - in other words - the wheel might fail.
No one will knowingly accept the liability of changing the design for you. We are all going to say to follow the manufacturer's design, or come up with something where you and only you are accepting the liability.
More technical: the wheel bearings are angular contact, as the angle is changed, the radial and axial stiffness and strength vary. Cups and cones are manufactured to work with a very limited range of ball sizes and ball track radii. Depending on how the particular cup (or cone) is made, catastrophic failure may result in using the part outside it's intended design.
Smaller balls will result in higher stress concentrations. Sufficiently larger ball (<~10% oversize or more) will not mate properly with the cup/cone surface and may have multiple wear tracks. One of these might be a rolling track (good) and the others will be sliding tracks (very bad).
No one will knowingly accept the liability of changing the design for you. We are all going to say to follow the manufacturer's design, or come up with something where you and only you are accepting the liability.
More technical: the wheel bearings are angular contact, as the angle is changed, the radial and axial stiffness and strength vary. Cups and cones are manufactured to work with a very limited range of ball sizes and ball track radii. Depending on how the particular cup (or cone) is made, catastrophic failure may result in using the part outside it's intended design.
Smaller balls will result in higher stress concentrations. Sufficiently larger ball (<~10% oversize or more) will not mate properly with the cup/cone surface and may have multiple wear tracks. One of these might be a rolling track (good) and the others will be sliding tracks (very bad).
Using a "thicker" axle will require cones that are a bit "less deep", in order to maintain the angle. Vice-versa, using a slightly thinner axle will require beefier cones with similar angle. All in order to match the required radius of the cone.
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If you want to modify hub innerds, it's usually best to make everything else match up to the correct cones for your hub shell. You can source axles, cones and locknuts fairly easily. Finding a dust shield that matches both your hub shell and whatever non-conforming cone you are using might be another matter.
You can almost never change just one part on a bicycle. Everything works together so, when you change one part, you almost always have to change something else too.
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Threaded parts simply have to match. If you try to mix threads, your axle nut will go on for about 1 1/2 turns then get real hard to tighten further. If you persist, you'll tear up the threads.
If you want to modify hub innerds, it's usually best to make everything else match up to the correct cones for your hub shell. You can source axles, cones and locknuts fairly easily. Finding a dust shield that matches both your hub shell and whatever non-conforming cone you are using might be another matter.
You can almost never change just one part on a bicycle. Everything works together so, when you change one part, you almost always have to change something else too.
If you want to modify hub innerds, it's usually best to make everything else match up to the correct cones for your hub shell. You can source axles, cones and locknuts fairly easily. Finding a dust shield that matches both your hub shell and whatever non-conforming cone you are using might be another matter.
You can almost never change just one part on a bicycle. Everything works together so, when you change one part, you almost always have to change something else too.