For those tuning top-end speed and reliability, the XRAY 930817 steel sealed ball bearings are a solid fit. These 8x16x5 mm bearings are built to cope with sustained high-speed use while keeping moving parts turning cleanly.
The steel seals are focused on blocking dust and debris so the internal grease stays put. That protection helps preserve smooth rotation even when you run on rough or dirty surfaces.
Although designed for XRAY kits, the common 8x16x5 dimensions make these bearings a useful upgrade or replacement for many 1/10 scale cars, letting you swap them between projects.
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