ITEM NAME:10X 624Vv V Groove Sealed Ball Bearing Vgroove 4 X 13 X 6Mm 2~2.5Mm Deep BearJï¼D Material: carbon steel Groove width: 4mm Groove depth: 2mm V groove: 90 degree Model:V624ZZ Quantity:20pcs (ID)4mm x (OD)13mm x (thickness)6mm.(ID)4mm x (OD)13mm x (thickness)6mm. V groove: 90 degree. Groove width: 4mm. Groove depth: 2mm.