FBB179 4.5X4.5 US26D
General Description: Ball bearing hinge
Type: Standard Weight Ball Bearing (wood or hollow metal)
Application: wood or metal doors; medium weight doors of average frequency
Size: 4.5” x 4.5”
Finish: US26D Satin Chrome
The FBB Series hinges are ball bearing hinges that conform to ANSI A156.1. These tough, hardened, chrome alloy, vertical thrust ball-bearing assemblies support the vertical load on the door, as the pin bearing on the inside of the hinge knuckles supports the lateral load of the door. FBB hinges are approved for use on fire-rated doors since they contain anti-friction bearings, a requirement for fire-rated and self-closing doors.