Tandem Truck Assy, BB. 1" Pend. 5000lb Cap-Zinc

For manually sliding doors. One pair of tandem truck assemblies per door. Door Weight not to exceed 5,000 lbs.
Sold as a pair (2 ea.)

• .pdf Drawing
• 25-TBSE.stp file

Purpose:
NOTE: Only (1) one pair of tandum truck assemblies are to be used per door regardless of the size of the door.  Attaching more than two trucks on a single door can create a fulcrum or "teeter totter" effect causing uneven wear to the trucks and track.

Designed for extremely heavy doors, a four-wheel tandum truck unit should be used.  Two wheels are machined flat, while the two opposite wheels are machined with a concave groove that maches the radius rod the dors in the #25 track system. As a result there is conserable less friction between the rollers and the truck unit. The load bar hanges from a central point.

Function:
For metal doors with sufficient reinforcing in the top of the door to support the door's own weight.

Fasteners Included