Hager BB1277NRP 4.5 X 4.5 626 4.5" x 4.5" Ball Bearing Hinge

Hager BB1277NRP 4.5 X 4.5 626 Ball Bearing Hinge offers durability and reliability for high-frequency door applications. This full mortise ball bearing hinge is crafted from standard weight steel and features a sleek satin chrome finish, making it an ideal choice for both commercial and residential settings. Measuring 4.5 inches by 4.5 inches, it is specifically designed for use on hollow metal or wood composite doors paired with hollow metal frames. The ball bearing design ensures smooth operation and longevity, while its non-removable pin adds an extra layer of security. With a fire rating of up to 3 hours, this hinge meets stringent safety standards, making it suitable for various environments. Installation is straightforward, given that both leaves are mortised, providing a clean and seamless appearance. Manufactured in accordance with ANSI/BHMA A156.1 standards, the Hager BB1277NRP is engineered to withstand the rigors of everyday use. To ensure proper fit, consider door thickness, backset, and required clearance. Backed by a lifetime limited warranty, this hinge exemplifies Hager's commitment to quality, making it a reliable choice for your next project.

BALL BEARING HINGE 4.5" X 4.5"

Full Mortise Ball Bearing Hinge, Standard Weight, Both Leaves Tapped, 4.5" by 4.5", Steel, Satin Chrome Finish

Ball bearing heavy weight steel base hinge For use on hollow metal or wood composite doors with hollow metal frames requiring high frequency service

There are three dimensions to know in order to determine the minimum width of the hinge: door thickness, backset, and clearance required.

Today, the Hager name is synonymous with architectural hinges. In fact, they are the industry’s premiere designer and manufacturer of architectural hinges, with a product line that offers one of the widest varieties of sizes, shapes, and finishes--all of which meet or exceed ANSI standards. 

• Hinges are manufactured in accordance with ANSI/BHMA A156.1. Self-closing hinges and pivots are in accordance with ANSI/BHMA A156.17 using three hinges per opening on a 3’0” x 7’0” x 1-3/4” (914 mm x 2134 mm x 44 mm) door. 
• Round corners are available in 1/4” (6 mm) (standard) or 5/8” (16 mm) radius.
• Full Mortise Both leaves are mortised, one leaf in the door and one leaf in the frame (wood door or hollow metal door with wood frame or hollow metal frame). Example: BB1279, 4-1/2” x 4-1/2” (114 mm x 114 mm), US26D
• Half Mortise One leaf is mortised in the door and the other is surface applied to the frame (hollow metal door with channel iron frame). Example: BB1109, 4-1/2” (114 mm), US26D
• Full Surface Both leaves are applied to the surface, one to the door and the other to the frame (metal core door or hollow metal door with channel iron frame). Example: BB2171, 5” (127 mm), USP
• Half Surface One leaf is mortised in the frame and the other is surface applied to the face of the door (wood door with wood frame or metal core door with hollow metal frame) Example: BB1163, 5” (152 mm), US26D

Resources

• Hager Commercial Hinges Cut Sheet