3" Expandable Caster with Brake- 3GDEC300B
3" Expandable Caster with brake where a rubber grommet expands to the interior of the tube for a snug fit. Available in Cases of 20. 300 lb Weight Limit.
Turn the top jam nut and snug on the rubber spacer. Place the caster into a tube. If loose in the tube, tighten the jam nut until the rubber touches the tube sides. When inserted, twist the large lock ring until the rubber locks in the tube. See fig. 1