<http://schema.org/description>
"Rugged, heavy-duty wheels with an injection molded polyurethane elastomer tire surface. Polyurethane is hard wearing, handles high loads and will not mark the floor.  Wheels have roller bearings which can be re-greased using the grease fitting. Wheels are all 2&amp;quot; wide.&amp;lt;p&amp;gt;&amp;lt;li&amp;gt;Size: 4&amp;quot; Fixed&amp;lt;li&amp;gt;Capacity: 550 lbs.&amp;lt;li&amp;gt;Mounting Plate Dimension: 4.49&amp;quot; x 3.94&amp;quot;&amp;lt;li&amp;gt;Distance Between Holes: 3.46&amp;quot; x 2.95&amp;quot;&amp;lt;li&amp;gt;Height to Mounting Plate: 5.39&amp;quot;"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.grizzly.com/products/4-Heavy-Duty-Fixed-Caster/G8164?utm_campaign=zPage>