Snubber devices for use in roll-up door assemblies

A roll-up door assembly mounted on a storage container, such as a truck trailer, comprising:

• a roll-up door including a plurality of door panels, of which adjacent panels are hingedly coupled to one another;
• a hinge having an first hinge plate coupled directly to a bottom panel of said door, having a second hinge plate, and having a hinge joint pivotally coupling said first and second hinge plates to one another for enabling relative movement therebetween;
• a bottom roller coupled to said second hinge plate for movement therewith about said joint;
• wherein said door is adapted to be moved between a closed position at which said bottom door panel is in a vertical orientation, and an opened position at which said bottom door panel is in a horizontal orientation;
• a counterbalance mechanism mounted on said storage container;
• a cable connecting said counterbalance mechanism to said bottom door panel;
• and
• a snubber surrounding said cable and adapted to engage said counterbalance mechanism when said bottom door panel is selectively moved toward said counterbalance mechanism.