Cup And Cone Bearings Bike
The hubs of most bicycle wheels revolve around one of two types of bearing system.
Cup and cone bearings bike. Loose ball bearings are the most traditional and require the use of bearings with a mated cup and cone. The cone traps the ball bearing. The locknut is tightened against the cone to prevent the cone from moving. There is an improvement on this technique as follows.
Measure your axle thread size the cones outer diameter and overall length. 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. Cup and cone bearings. We are using a rear wheel but the procedure is the same for a front.
I do a lot of old bikes and finding cones is always a big pain. A basic bearing system is seen below. The combination of cup cone and balls forms the bearing. Standard bicycle bearing ball sizes.
Cup with curved walls holds the balls while the cone presses on top holding them in place. There is a bearing on each side of the hub. Modern freehubs tend to be more complex. For the rear first remove the cassette from the.
A disposable cartridge bearing or a cup and cone system which can be serviced. The cones are conical nuts that screw onto the axle. If there is looseness from bearing play the cone can be move closer to the cup. Find out how to service cup and cone hubs in our walkthrough video step 1.
If the cones are screwed on too far they exert pressure on the bearing balls. Thanks for your suggestion. There are some exceptions use your old cones for reference. The cups are built into the shell of the hub.
The bits that keep your bike rolling. The cup is normally a permanent press fit into the hub shell. Angular contact bearings also allow easier maintenance adjustability and serviceability. 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.
Taiwanese cones fit 9mm 9 5mm and 10mm diameter axles. Bicycle bearings commonly use bearing balls placed in a cone compressed with a cup cup and cone bearing.