20pcs 624ZZ 4mm V Groove Sealed Guide Pulley Rail Ball Bearing 4x13x6mm
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<b>[Product Information]</b><br>
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<li>Wire pulley groove,Wide application</li>
<li>This item is ordinary precision, adaptation to low speed, low load applications</li>
<li>Material:High carbon steel</li>
<li>Dimension:(Inside diameter)4mm x (outer diameter)13mm x (thickness)6mm</li>
<li>V groove width: 4mm.V groove deepness: 1mm</li>
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