4/10pcs 684 4 * 9 2.5mm/4 4mm Full SI3N4 Ceramic Bearing Bearings Silicon deep Groove Ball(684 4x9x2.5 Mm,10pcs)
Description
Bearings
Bearings
Type:Full Si3N4 ceramic ball bearings
Item No:684
Material:SI3N4 ceramic
Retainer : PTFE
Size:4*9*2.5mm / 4*9*4mm
QTY:4/10pcs
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