Hager BB1191 4-1/2X4-1/2 US3 BT Standard Weight Hinge

Hager BB1191 4-1/2X4-1/2 US3 BT Hinge is a full mortise ball bearing hinge designed for commercial applications, ensuring durability and reliability. With dimensions of 4-1/2 inches by 4-1/2 inches and a striking bright brass finish, this standard weight hinge combines aesthetics with functionality, making it an ideal choice for various door types. Manufactured in accordance with ANSI/BHMA standards, the Hager BB1191 provides optimal performance for doors requiring frequent use. Its ball bearing design enhances smooth operation, reducing wear over time. The hinge is suitable for both wood and hollow metal doors, allowing for versatile installation options. It features five knuckles, which contribute to its strength and stability. The hinge's ball tip adds a touch of elegance, making it suitable for a range of architectural styles. Additionally, with a fire rating of 3 hours, it meets safety standards, giving you peace of mind in commercial settings. Backed by a lifetime limited warranty, the Hager BB1191 is a dependable choice for professionals seeking high-quality door hardware. Whether you're upgrading existing hardware or outfitting a new build, this hinge stands out for its combination of durability, style, and compliance with industry standards.

HINGE, STANDARD WEIGHT

Full Mortise Ball Bearing Hinge, Standard Weight, 4-1/2" by 4-1/2", Ball Tip, Bright Brass Finish

Full Mortise Commercial Hinge, Standard Weight, Ball Bearing, 4-1/2" x 4-1/2", Ball Tip, Bright Brass Finish

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