Best (Formerly Stanley) BB852D-5 x 6-USP Full Mortise Triple Weight Concealed Bearing Prison Hinge, 5" x 6" Swaged, With Fasteners, Door Weighing Up To 1200 Lbs, See Manuf Cut Sheet, Prime Coat Gray
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The BB852D-5 x 6-USP Full Surface Triple Weight Concealed Bearing Prison Hinge, Prime Coat Gray is designed to support doors weighing up to 1200 lbs. This hinge can be easily installed with fasteners and is available in a swaged 5" x 6" size. For more specifications, please refer to the manufacturer's cut sheet.
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 triple weight steel capable of carrying doors weighing up to 1200 lbs. (544 Kg)
(Based on a 3' x 7' door with 3 hinges)
concealed hardened steel races contains sixteen 3/16" (4.8 mm) hardened and ground steel balls which are assembled within a jacket
Provision has been made in the barrel of the hinge for forced lubrication if further lubrication is necessary
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
