
Skateboard Bearings HYDROPONIC H0001-02 HY Bearings Abec 5 Red
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CERAMIC: Ceramic bearings, made of a compound called silicon nitride, are smoother and harder than their steel counterparts and less affected by thermal energy. For starters, this means much less friction (these bearings require little lubricant); however, if friction does occur, the ceramic material doesn't expand, so it doesn't affect the skateboard's performance.