Ives 5BB1 4.5 x 4.5 Inch Ball Bearing Hinge

The Ives 5BB1 4.5 x 4.5 Inch Ball Bearing Hinge is a dependable full mortise hinge built for medium to high-frequency commercial openings. Featuring two ball bearings for smooth, quiet operation, it handles the demands of daily use while resisting wear over time. The 4.5-inch square dimensions make it a versatile choice for standard-weight doors, and its five-knuckle design ensures reliable alignment and support. Manufactured to meet ANSI standards, the 5BB1 delivers consistent performance in offices, schools, healthcare facilities, and other busy environments. With its durable construction and clean appearance, this hinge is a practical solution for architects, contractors, and facility managers.

Features

• Two ball bearings provide smooth, quiet door movement and long-term durability.
• Full mortise, five-knuckle design offers reliable support and proper alignment.
• 4.5 x 4.5 inch size suits standard-weight commercial doors.
• Built to meet recognized ANSI performance standards for institutional use.
• Ideal for medium to high-frequency openings in commercial settings.