There are some exceptions use your old cones for reference.
Cup and cone bearings bike.
I do a lot of old bikes and finding cones is always a big pain.
The hubs of most bicycle wheels revolve around one of two types of bearing system.
For the rear first remove the cassette from the.
The bits that keep your bike rolling.
Modern freehubs tend to be more complex.
If there is looseness from bearing play the cone can be move closer to the cup.
Cup and cone bearings.
The combination of cup cone and balls forms the bearing.
Angular contact bearings of the cup cone type offer greater strength than sealed cartridge industrial bearings due their ability to displace lateral and vertical loads more effectively for super smooth rotation and longer durability.
We are using a rear wheel but the procedure is the same for a front.
The cups are built into the shell of the hub.
A disposable cartridge bearing or a cup and cone system which can be serviced.
A basic bearing system is seen below.
Angular contact bearings also allow easier maintenance adjustability and serviceability.
Instead of fixing the cone in a vise and then grinding on it with a stone which may not be done very evenly it is easier to make a fixed rounded grinding surface and then attach the cone to a rotary drill or dremel tool to machine it.
The cones are conical nuts that screw onto the axle.
Cup with curved walls holds the balls while the cone presses on top holding them in place.
The cup is normally a permanent press fit into the hub shell.
There is an improvement on this technique as follows.
If you cannot find an exact fit cone from our hub cone charts you will need to measure your existing cone and axle to find an approximate fit.
There is a bearing on each side of the hub.
Standard bicycle bearing ball sizes.
Thanks for your suggestion.
Loose ball bearings are the most traditional and require the use of bearings with a mated cup and cone.
For bearing ball standards see.
The cone traps the ball bearing.
If the cones are screwed on too far they exert pressure on the bearing balls.
The locknut is tightened against the cone to prevent the cone from moving.
Measure your axle thread size the cones outer diameter and overall length.
Bicycle bearings commonly use bearing balls placed in a cone compressed with a cup cup and cone bearing.