Hager Hinge BB127941215 Full Mortise Ball Bearing Hinge

Product Description

The HAGER HINGE BB127941215 is a full mortise, standard weight ball bearing hinge finished in satin nickel. Designed for commercial and residential door installations, this hinge provides smooth, consistent swing performance through precision ball bearing operation. Measuring 4.5 inches by 4.5 inches, it fits standard mortise prep cutouts and is suited for interior and exterior door applications. Installation is handled by finish carpenters, door hardware specialists, and general contractors. The satin nickel finish delivers a clean, neutral appearance compatible with a wide range of door hardware sets.

This hinge is appropriate for standard-weight door applications in both residential and light commercial construction. Full mortise hinges of this type are set flush into the door edge and frame, keeping the hinge barrel exposed while the leaves sit recessed. The 4.5-inch by 4.5-inch leaf size is a common specification for heavy interior doors and standard exterior passage doors where smooth, long-cycle swing performance is required.

Key Features

• Full mortise design for flush, recessed installation in door edge and frame
• Ball bearing construction for smooth, low-friction operation over extended service life
• 4.5 inches x 4.5 inches leaf size suits standard mortise door prep
• Satin nickel finish for a clean, neutral appearance
• Standard weight rating appropriate for typical residential and light commercial doors
• Sold individually (each)

Compatibility

Designed as an OEM-style replacement or new-installation hinge for standard mortise door preparations requiring a 4.5-inch by 4.5-inch full mortise ball bearing hinge in satin nickel finish.

Installation Notes

Full mortise hinges are installed by finish carpenters or door hardware technicians using a router or chisel to create or match existing mortise cutouts on the door edge and door frame. Remove or secure the door before seating and fastening the hinge leaves. Fastener torque should follow the door manufacturer or hardware specification. Verify hinge count and weight rating against door mass and frequency of use prior to installation.