Hager BB1168-NRP 4-1/2" x 4-1/2" Ball Bearing Heavy Weight Hinge

***Hager BB1168 - Full Mortise -Five Knuckle - BallBearing -Heavy Weight Hinge - Non-removable Pin (NRP)*

For use on heavy weight doors or doors requiring high frequency service.

Hinge Size:4-1/2" x 4-1/2" (114 x 114 mm)

Material:Steel with Steel pin- ANSI A8111

Description:Non-removable Pin (NRP) - Four ball bearings

Gauge of Metal:0.180

Hole Count: 8

Screw Size:Wood Screws:*1-1/4 x 12 - Machine*Screws:1/2x 12-24        Packaging:Sold as individual units (1 EACH), with all machine & half wood screws 

Finishes:US10D - Black Nickel, Oiled, US10B - Oil Rubbed Bronze, US26D - Satin Chrome

Ball Bearing (BB)Ball bearings are engineered to throw the knuckle

weight against specially hardened steel raceways, which ride on

the bearing surfaces. The one-piece cup protects the bearings from

moisture and dust. The cup supports no weight so it is not subjected

to functional friction, pressure or wear. Lateral wear is minimized

because the pin is held against thrust by the hardened steel top and

bottom raceways. The bearing units are securely press-fit to the leaf

knuckle to prevent loss when the hinge is disassembled.

The non-removable pin (NRP)has a small set screw in the body of the

barrel. This set screw is tightened down against the pin. The pin has

a groove in the position where the set screw makes contact, allowing

the set screw to seat. The set screw is positioned so it cannot be

reached unless the door is opened. If pin removal is necessary, the

set screw is merely removed and the pin tapped from the bottom

in the usual manner.

Related Categories

• Five Knuckle Ball Bearing