If your wheels feel rough when you spin them, it's time to service your hubs. Usually the problem will be caused by wear in your bearings or by the ingress of water and grime. Wheel bearings also wear out over time which will introduce play to the hub, allowing the wheel to rock side to side on its axle.
There are two types of bearings commonly seen in hubs, sealed (cartridge) bearings and non-sealed (cup and cone or loose) bearings.
Regular servicing can extend their life, although they will eventually wear out to the point that they need to be replaced.
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How to service your bike's hubs
Cup and cone hubs
- Cone spanners - usually 15 and 17mm
- Grease
- A magnetic hex screwdriver or pick
- A chainwhip and chain removal tool
- Adjustable spanner
- Degreaser
- Paper cloth or clean rags
Step 1: We are using a rear wheel, but the procedure is the same for a front. For the rear, first remove the cassette from the freehub body.
Undo the lock nut on the non-driveside by using a cone spanner to hold the cone and another to undo the nut. Remove the locking nut and spacer by hand.
Cartridge bearing hubs
- Multi-sized cone spanners: 13, 14, 15 and 16mm
- Open-ended 15mm spanner
- 5mm Allen keys
- Solid rear axle
- Nylon mallet
- Small screwdriver
- Bearing grease
- Special tools or alloy tube to press the bearings
You can read more at BikeRadar.com
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