Extruded Brass, Full Mortise, Four Ball Bearing, Tempate Hinges

These heavyweight extruded hinges are designed for installation on heavy doors with a high frequency of use. Such applications include entrance doors to office buildings, public buildings and corridor entrance doors to offices. Each hinge is supplied with four precision machined, anti-friction, ball-bearing assemblies which increase both the vertical and lateral load bearing capability of the hinge. Each ball-bearing assembly has one end formed as a bushing, allowing it to be inserted into the knuckle. This feature seats the bearing correctly for smooth operation when the hinge is installed and helps to keep the bearing from falling out when the hinge pin is removed. Hinges are supplied with button tips. Optional decorative brass finials are available at an additional charge. These hinges conform to the most current specifications established by the American National Standards Institute (ANSI).