4 pack of our 2x5x2.3 Ceramic Metal bearing
The 2x5x2.3 Ceramic Metal Bearing (682ZZC) is a traditional steel balls"gr_ gr_7 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling multiReplace" id="7" data-gr-id="7">high quality steel/chrome bearing with metal shields and silicon nitride ceramic balls (Si3N4). These bearings have been tested and proven by many racers.
A ceramic can spin at higher traditional steel balls"gr_ gr_8 gr-alert gr_spell gr_inline_cards gr_run_anim ContextualSpelling ins-del multiReplace" id="8" data-gr-id="8">rpms with less drag and the life of the bearing is far greater than a steel bearing but in our traditional steel balls"gr_ gr_11 gr-alert gr_gramm gr_inline_cards gr_run_anim Punctuation only-ins replaceWithoutSep" id="11" data-gr-id="11">industry we suggest that you maintain them with oil or grease every once in a while. Another benefit to ceramics is the weight difference in the balls allowing for less rotating mass.