Description:<br> 10pcs 624 ZZ 4x13x5mm Metal Miniature Bearings Mini Steel Ball Bearings<br>  <br> Specification:<br> Type: 624ZZ<br> Material: Bearing steel<br> Outer Diameter: 13mm<br> Inner Diameter: 4mm<br> Thickness: 5mm<br> Quantity: 10pcs<br>  <br> Features:<br> Deep groove ball bearings.   Durable and practical.   Good hardness and accuracy.<br> These bearings are pre-lubricated with grease.<br>  Adapt to high speed， high load applications<br>  <br> Package Included:<br> 1x Set (10pcs) Ball Bearings<br>  <br> More Details: