Bicycle Bearings
It is often used for ordinary microscope observation such as biological microscope.
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1PCS 6000RSCB 10x26x8 mm Hybrid Ceramic Bearing ABEC-7 Bicycle Bottom Brackets Spares 6000RS CB Si3N
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5PCS S609RS CB 9X24X7 mm Stainless SteelHybrid Ceramic Ball Bearing ABEC-7 Bicycle Bearing 9x24x7mm
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2Pcs 607 Hybrid Ceramic Bearing 7x19x6 mm ABEC-7 Bicycle Bottom Brackets & Spares Si3N4 Ball Bea
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5PCS 606RS CB 6x17x6 mm Hybrid Ceramic Si3N4 Ball Bearing Bicycle Bottom Brackets & Spares Rear