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12x21 Bearing 12x21x6 Shielded Ball Bearings
|12 x 21 x 6 Shielded Ball Bearing|
12 x 21 x 6 Shielded Ball Bearing, This ball bearingis made of Chrome Steel, and is Metal Shielded from both sides, inner diameter is 12mm, outer diameter is 21mm, and width is 6mm.