Deltana S35R4BB3 Ball Bearing Hinge 3.5x3.5 Radius Bright Brass

Product Description

The DELTANA S35R4BB3 is a full-mortise ball bearing door hinge constructed from solid brass with a Bright Brass finish. Measuring 3.5 x 3.5 inches with a 0.25 inch leaf thickness and radius corners, this hinge is built for smooth, quiet operation in demanding door installations. The ball bearing knuckle reduces friction and wear over the life of the door, making it well-suited for frequently used doors in commercial and residential settings. Licensed hardware professionals and finish carpenters install this hinge as part of specified door hardware packages where both function and finish consistency are required.

This hinge is appropriate for interior and exterior door applications where an architectural-grade, solid brass hinge is called for. The Bright Brass finish coordinates with matching door hardware in residential entryways, office suites, hotel corridors, and institutional buildings. It is sold as a pair, allowing direct procurement for a standard single-door installation. The radius corner profile is the standard configuration for most pre-mortised door frames and factory-bored door blanks in commercial door hardware specifications.

Key Features

• Ball bearing knuckle provides low-friction, long-service operation on high-cycle doors
• Solid brass construction with Bright Brass finish for corrosion resistance and finish consistency
• 3.5 x 3.5 inch leaf dimensions with 0.25 inch leaf thickness for standard door specifications
• Radius corner geometry matches common pre-mortised door frames and slabs
• Sold as a pair to match standard single-door hardware sets

Compatibility

Designed as an architectural-grade replacement or new-installation hinge for standard 3.5 x 3.5 inch full-mortise hinge applications on residential and light commercial doors.

Installation Notes

Installation is performed by a licensed finish carpenter, door hardware installer, or general contractor. Power down any access-controlled or electrified door hardware before beginning work. Use a sharp chisel and hinge template to ensure a clean, flush mortise cut on both the door and the frame. Verify door weight and frequency-of-use requirements are within the rated capacity of the selected hinge before installation.