Stanley BB855-D-NH-USP

Stanley BB855-D-NH-USP Full Mortise Double Weight Concealed Ball Bearing Prison Hinge - Application D, No Holes, Prime for Paint Finish

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Stanley BB855-D-NH-USP Full Mortise Double Weight Concealed Ball Bearing Prison Hinge - Application D, No Holes, Prime for Paint Finish

Steel Hinge with Steel Pin
Application D
No Holes
ANSI A8381
Finish: Phosphated and Prime Coated for Painting
Size: 5 x 6"
Diameter of Pin: 1/2"
Full Mortise
Double Weight
Concealed Ball Bearing
Welded Pin
Gauge: .281
Three Knuckle
For lead-lined doors to x-ray rooms and extremely heavy doors and gates
For hinged cell-front doors and grated steel doors of penitentiaries, jails, reformatories, etc.
Made of double weight steel capable of carrying doors weighing up to 800 lbs. (363 Kg) (Based on a 3' x 7' door with 3 hinges)
Each of the 2 concealed hardened steel races contains sixteen 1/8" (3.2mm) hardened and ground steel balls which are assembled within a jacket
Concealed bearings are well lubricated insuring smooth, long lasting operation
Rolled knuckles are welded and machined
Typically made not swaged, no holes (application A) for full surface applications, or for full mortise (applications C) application. All other configurations are made to order
We are doing the application D as seen in the lower left-hand corner of the cut sheet. For the Stanley BB855 the Application A and the Application C are the identical hinge.