Deltana S55BB 5" x 5" Square Hinge, Heavy-Duty, Ball Bearings, Steel (Pair)

The S55BB measures 5 x 5 inches and is a full mortise hinge, so it drops into a jamb and door edge already mortised for a 5 inch square-corner leaf. Corners are square, not radiused, so if your existing mortises were routed with a radius corner bit you will need to square them out or pick a radius corner hinge instead. Leaf thickness is 0.145 inch.

No NRP on the S55BB. If the door swings out and the hinge barrels are on the unsecured side, the pin can be driven and the leaf lifted. For that opening use a hinge with the security stud, such as the Hager BB1168 non-removable pin full mortise ball bearing hinge.

No. At 5 x 5 inches the S55BB is a larger leaf than the 4 x 4 hinges common on residential openings, so it will not drop into a 4 inch mortise without recutting the door and jamb. To match existing 4 inch preps, the Orca 4040 Series 4" x 4" square corner hinge or the Delaney CH401X 4" x 4" square corner ball bearing hinge are the size-for-size options.

The Deltana S55BB is rated residential. For a commercial door, the Orca Hardware 3535 Series is a square corner ball bearing commercial hinge at 4-1/2 inches by 4-1/2 inches, the Ives 3CB1HW is a steel heavy weight concealed bearing full mortise hinge with 3 knuckles, and the Don-Jo HWBB75045 is a heavy weight full mortise ball bearing hinge at 5 inches by 4-1/2 inches in satin chrome. The Don-Jo HWBB75045 holds the 5 inch leaf height, so it is the one that stays closest to the S55BB opening while moving to a heavy weight commercial hinge.

The Deltana S55BB is a full mortise, square corner, ball bearing steel hinge measuring 5 inches by 5 inches, sold as a pair. For a smaller opening in the same construction, the Orca Hardware 3535 Series is a 4-1/2 inch by 4-1/2 inch square corner ball bearing commercial hinge, and the Emtek 94013 is a heavy duty ball bearing hinge pair at 3-1/2 inches by 3-1/2 inches with square corners in plated steel. All three keep square corners and a ball bearing barrel, so the corner prep in the door and jamb stays square; only the leaf height and width change.

The Deltana S55BB is not supplied as a non-removable pin hinge. Where the door swings out and the barrel is exposed on the unsecured side, the Hager BB1168 NRP is a non-removable pin full mortise ball bearing hinge rated heavy duty. It keeps the full mortise mounting and ball bearing construction of the S55BB while adding the set screw feature that stops the pin from being driven out with the door closed.

The S55BB is sold as a pair, so one order covers two hinges. Most doors of this height take three hinges, which means ordering two pairs and holding one spare, or two pairs per door if you are hanging tall or heavy leaves that need four.

Ball bearings carry the load on races between the knuckles, so they turn easier and wear slower under a heavy leaf or a door that gets cycled a lot. The S55BB is ball bearing and heavy-duty. On a light interior door that rarely moves, a plain bearing hinge like the Emtek 92013 or the Schlage Residential S3P1010 does the same job for less hardware.

No handing to specify on the S55BB. It is a standard full mortise butt hinge with a removable pin, so the same pair hangs a left or right swing door, and the pair ships ready to mortise either jamb.

The Deltana S55BB uses a ball bearing barrel. Plain bearing hinges such as the Emtek 92013 heavy duty plain bearing pair at 3-1/2 inches by 3-1/2 inches, the Orca Hardware 4040 Series 4 inch by 4 inch square corner plain bearing hinge, and the Schlage Residential S3P1010 3.5 inch by 3.5 inch square corner plain bearing mortise hinge carry the load on the knuckle faces rather than on bearings. They mortise the same way, but the pivot construction is different, so they are not a like for like replacement for a ball bearing hinge on a door being cycled hard or hung heavy.

The Deltana S55BB is a heavy-duty ball bearing steel hinge for residential use. For lighter interior doors, the Delaney RH35xx is a 3-1/2 inch by 3-1/2 inch bulk steel residential interior hinge pair with a 5/8 inch radius corner, and the Emtek 91013 is a residential plain bearing hinge pair at 3-1/2 inches by 3-1/2 inches with square corners in plated steel. Note the corner difference: the Delaney RH35xx has radius corners and will not drop into a square corner mortise, while the Emtek 91013 has square corners like the S55BB.

Only if the opening needs power carried through the hinge. The Deltana S55BB is a mechanical full mortise ball bearing hinge with no wiring. The Command Access ETH-BB68 is a heavy duty 5 knuckle steel base energy transfer hinge, and the BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect, rated medium duty. Those carry conductors to an electric lock or strike and require a wire path in the frame; on a plain mechanical opening they add prep and connections the S55BB does not need.

The Deltana S55BB is a standard ball bearing hinge and does not close the door on its own. Where the door has to return to the frame without a closer, the Stanley Security 2060R is a full mortise square corner spring hinge at 4.5 inches by 4.5 inches on a ferrous steel base, rated heavy duty. It mortises like the S55BB and keeps square corners, but the barrel contains a spring that pulls the door shut.

The Deltana S55BB is a 5 inch by 5 inch square corner ball bearing steel hinge sold as a pair. The Delaney CH401X is a 4 inch by 4 inch commercial ball bearing hinge with square corners. Both use square corners and ball bearings, so a square corner router template works for either, but the 5 inch leaf of the S55BB spreads the load over more of the door edge and needs a taller mortise than a 4 inch hinge. Doors already prepped for 4 inch hinges take the Delaney CH401X without recutting.

Prime Coat White is the finish on the S55BB. That is a paintable primed surface, so it is meant to be finish-painted to match the door or trim rather than left as a decorative metal finish. If you want a plated look out of the box, you are shopping a different hinge.

Steel, both base and substrate. That is why it is a value hinge for interior use and why the primed finish is there to be painted. If you need a non-ferrous leaf for a corrosive or coastal opening, the McKinney T2314 is the non-ferrous option.

The Deltana S55BB carries visible ball bearings between the knuckles. The Ives 3CB1 is a 3 knuckle concealed bearing full mortise hinge rated medium duty, and the Hager 920 is a full mortise concealed bearing hinge with 2 knuckle steel construction, also medium duty. Concealed bearing hinges hide the bearing inside the barrel for a cleaner knuckle line, while the S55BB shows the bearing races. All three are full mortise, so the door and frame prep is the same style of cutout.

They are a different class of opening, not a heavier version of the same hinge. The Deltana S55BB is a full mortise residential ball bearing hinge. The BEST BB855 is a heavy-duty steel double weight concealed ball bearing prison hinge, and the Hager 990 STEEL is a full surface prison hinge at 3 inches by 4 inches with a welded tip, rated heavy duty. The Hager 990 is full surface rather than full mortise, so it screws to the face of the door and frame instead of into a routed pocket, and the welded tip is meant to defeat tampering in a detention setting. Neither drops into an S55BB mortise.