3x8x4MM Ceramic Ball Bearing | 693 Ball BearingRegular price $29.99 Sale price $19.99 Save $10.00
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3x8x4mm CERAMIC BALL BEARING engineered with proprietary specific internal race tolerances for high speed reliability. Sealed on both sides as shown. The width of this bearing is 4mm. Overall dimensions of this bearing is 3mm inner diameter, 8mm outer diameter and 4mm width. We also sell the same bearing with a width of 3mm. This bearing has many uses but is very popular as a quadcopter bearing