Deltana DSB55B3-UNL Square Ball Bearing Hinge Bright Brass

Product Description

The DELTANA DSB55B3-UNL is a 5-inch by 5-inch square ball bearing hinge finished in unlacquered bright brass. Built from solid brass construction, it is designed for interior and exterior door applications where smooth, low-friction operation and a clean architectural appearance are required. The ball bearing mechanism reduces wear on the knuckle and supports consistent, quiet pivot action over the life of the door. This hinge is installed by carpenters, finish contractors, and general trades on commercial and residential projects where architectural hardware specifications call for a solid brass product in an unlacquered finish.

The DSB55B3-UNL is suited for standard and heavy-duty door installations in residential and light commercial settings. The 5-inch by 5-inch leaf size accommodates larger, heavier door panels typical in high-end residential construction and commercial interior applications. The unlacquered bright brass finish ages naturally over time and is often specified where a living finish look is acceptable or preferred. This hinge is sold as a pair, making it straightforward to order the correct quantity for single-door applications.

Key Features

• 5-inch by 5-inch square leaf dimensions for heavy-duty door support
• Ball bearing construction for smooth, low-friction pivot operation
• Unlacquered bright brass finish allows natural patina development
• Solid brass material for corrosion resistance and long service life
• Sold as a pair for single-door applications

Compatibility

Designed as an OEM-style architectural replacement or new-installation hinge for standard residential and light commercial doors requiring a 5-inch by 5-inch square ball bearing hinge in a bright brass finish.

Installation Notes

Installation is performed by finish carpenters or door hardware specialists using standard chisels, drill bits, and screwdrivers. Power down any electric strike or access control hardware associated with the door frame before servicing the hinge mortise. Mortise depth should be matched precisely to the leaf thickness to ensure flush seating and proper door alignment. Follow applicable building codes for fire-rated door assemblies when installing hinges on rated openings.