Introduction
This tutorial will show how to replace the hub shell bearings in our common SL style rear hubs. This procedure can also be used as a guide for changing bearings in other hubs which use similar axle reducer assemblies.
Tools
Parts
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Any brand bearing press will work as long as the correct size bearing drifts are used.
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To skip to bearing installation, proceed to step 4.
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Begin by removing the axle from the hub by following one of these guides:
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Slide the bearing removal drift onto the threaded axle of the bearing press tool. Then slide the tool through the disc side of the hub.
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Place the bearing removal cup on the non-disc side. This cup should be larger in diameter than the outer race of the bearing. Thread the remaining handle onto the bearing press tool.
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Make sure the bearing removal drift and bearing removal cup are centered.
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Tighten the tool handles to press the axle reducer and non-disc side bearing out of the hub shell.
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The axle reducer will still be attached to the bearing. The bearing can be pulled off the reducer with firm hand pressure.
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Slide the bearing removal drift and axle reducer onto the bearing press tool.
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Place the bearing removal cup on the disc side of the hub. This cup should be larger in diameter than the outer bearing race.
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Tighten the tool handles to press the axle reducer and the disc-side bearing out of the hub shell. The axle reducer will still be attached to the bearing. The bearing can be pulled off the reducer with firm hand pressure.
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To install new bearings, begin by gently centering the disc side bearing onto the hub shell.
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Slide the bearing press drift onto the bearing press tool. Press the remaining bearing on the axle reducer, and then slide the reducer onto the bearing press tool.
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Be sure to center drifts to avoid damage to the bearing and/or uneven installation.
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Tighten the tool to press both the bearings into the hub shell, capturing the axle reducer between the bearings.
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Install the axle and driver.
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Thanks for reading, now get out there and ride!
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