Orca Hardware COM4545 - 4-1/2" x 4-1/2" Heavy Duty Square Corner Ball Bearing Commercial Hinge

The Orca COM4545 is a 4-1/2 x 4-1/2 inch full mortise hinge with square corners, which is the standard prep on a commercial hollow metal frame and door. If the existing hinge pocket has square corners and measures 4-1/2 inches in both directions, it drops straight in. If your leaf pockets are radius cornered (5/8 inch radius is the common one on residential doors), the square corner leaf will not seat without rework to the mortise.

Two pin configurations are offered on the COM4545: standard, and non-removable pin (NRP). The NRP version has a set screw in the barrel that locks the pin in place so it cannot be driven out from the knuckle. You want NRP on any out-swinging exterior or corridor door, because with an outswing the hinge barrel sits on the unsecured side and a standard pin can be tapped out to lift the door off. On in-swinging doors the barrel is protected and standard pin is fine.

Heavy duty rated, with ball bearings in the knuckles rather than a plain bearing. That is the combination you want on doors that cycle constantly or carry a closer: the bearings take the thrust load so the knuckles don't wear and the door doesn't start to sag or bind. A plain bearing hinge in the same size will do fine on a low-traffic interior office door, but it is not what belongs on a main entrance or a stairwell door.

No. The COM4545 is a 4-1/2 x 4-1/2 inch leaf, so it will not sit in a 3-1/2 inch mortise without cutting the pocket deeper and longer in both the door and the jamb, and the screw pattern will not line up. For a straight swap in a 3-1/2 inch square corner pocket, look at the Emtek 94013 heavy duty ball bearing hinge or the Deltana DSB35, both 3-1/2 x 3-1/2 with square corners.

No, the COM4545 is a mechanical hinge only, with no wire raceway through the barrel. If the opening has an electric strike, electrified lever trim, or a mag lock that needs power transferred from the frame to the door leaf, use an electrified hinge in one of the three positions instead: the Command Access ETH-BB68 heavy duty energy transfer hinge, the BEST CECB179-12C with 12-wire quick connect, or the Command Access ETM-BB68 if you also need an integrated door position switch. The remaining hinges on that opening can stay mechanical.

The Orca Hardware COM4545 is a standard ball bearing hinge and does not close the door on its own. The Stanley Security 2060R is a full mortise spring hinge with square corner at 4.5 inch by 4.5 inch on a ferrous steel base, rated heavy duty. It shares the COM4545 4-1/2 inch by 4-1/2 inch size, square corner prep, and full mortise mounting, so it goes into the same hinge pocket while adding the spring action. Spring hinges are set for closing force at install, which is work the COM4545 does not require.

The Orca Hardware COM4545 is a 4-1/2 inch by 4-1/2 inch heavy duty full mortise ball bearing hinge with square corners for commercial use. The nearest cross-brand equivalents are the Don-Jo HWBB74545, a heavy weight full mortise ball bearing hinge in the same 4-1/2 inch by 4-1/2 inch size, and the Don-Jo HWBB84545, also a heavy weight full mortise ball bearing hinge at 4-1/2 inch by 4-1/2 inch. Both match the COM4545 on size, mortise style, and ball bearing function, so either drops into the same 4-1/2 inch square hinge prep.

The Orca Hardware COM4545 is built at 4-1/2 inch by 4-1/2 inch. When a door is wide enough to need more leaf width on the frame side, the Don-Jo HWBB75045 is a heavy weight full mortise ball bearing hinge at 5 inch by 4-1/2 inch, and the Don-Jo HWBB85045 is a heavy weight full mortise ball bearing hinge at 5 inch by 4-1/2 inch in brass. Both step up the leaf height to 5 inches, which changes the frame and door mortise depth, so confirm the prep before ordering against the 4-1/2 inch COM4545.

The Orca Hardware COM4545 is offered with the non-removable pin option in both Oil-Rubbed Bronze and Brushed Chrome. Cross-brand, the Hager BB1168 is a non-removable pin full mortise ball bearing hinge rated heavy duty, which matches the COM4545 on NRP, full mortise, ball bearing, and heavy duty. The Deltana CSB45N is a 4-1/2 inch by 4-1/2 inch square hinge with non-removable pin sold in pairs, matching the COM4545 size and square corners. The Deltana DE44R5TA is a 4 inch by 4 inch security hinge with a 5/8 inch radius corner, so it takes a radius prep rather than the square prep the COM4545 uses.

The Orca Hardware COM4545 is a mechanical ball bearing hinge; it carries no wiring. For an electrified opening, the Command Access ETH-BB68 is an energy transfer hinge with 5 knuckles on a heavy duty steel base, and the Command Access ETH-CB70 is an energy transfer hinge with 3 knuckles on a standard weight steel base rated medium duty. The BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect, rated medium duty. If the opening also needs door position monitoring, the Command Access ETM-BB68 is an energy transfer monitor hinge with an integrated door position switch rated heavy duty. Wire count and duty level vary across these, so match them to the lock and the door weight.

The Orca Hardware COM4545 is a full mortise hinge, which needs both the door edge and the frame rabbet machined for a leaf. Where the frame cannot be mortised, the Hager 1129 is a half mortise plain bearing commercial hinge at 4-1/2 inch, standard weight steel, rated heavy duty, so one leaf mortises into the door while the other surface-applies to the frame. The Hager 990 STEEL is a full surface prison hinge at 3 inch by 4 inch with a welded tip, rated heavy duty, applying to the faces of both door and frame with no mortise at all. Both change the bearing type from the COM4545 ball bearing to plain bearing.

No, both wood and machine screws ship with the COM4545. Machine screws for a hollow metal frame with tapped hinge reinforcement, wood screws for a wood door leaf or wood jamb. On a wood door hung with a closer, most installers swap at least one wood screw per leaf for a longer screw that reaches the framing, but nothing extra is required to hang the door as supplied.

The COM4545 is sold as an individual hinge, unlike several of the residential lines that ship in pairs (Deltana's CSB45N 4-1/2 inch square hinge and the Delaney exterior residential hinges, for example, are pair packs). Order per leaf: a standard 7-foot commercial door takes three, and a door over 7 feet 6 inches or one carrying heavy glass or a closer usually takes four.

They solve the same problem differently. The Orca COM4545 uses exposed ball bearings between the knuckles, which is the traditional commercial detail and the easiest to identify and replace in kind. A concealed bearing hinge hides the bearing inside the knuckle for a cleaner barrel line; ZenSupply carries that style in the Ives 3CB1HW heavy weight and the Hager 920 two-knuckle. If the rest of the building is on ball bearing hinges, stay on ball bearing so the openings match and one part number covers the fleet.

For the same 4-1/2 x 4-1/2 inch heavy weight full mortise ball bearing format, the Don-Jo HWBB74545 and HWBB84545 in satin chrome are direct counterparts. If your frame is prepped for a 5 inch leaf instead, the Don-Jo HWBB75045 covers 5 x 4-1/2 inch in steel and the HWBB85045 in brass. Hager's BB1168 is the option when you specifically want a factory non-removable-pin heavy duty ball bearing hinge from that line.

No. The COM4545 is a full mortise butt hinge with a symmetrical leaf pattern, so the same hinge works on a left-hand or right-hand door; you simply flip it. Handing only becomes an ordering decision on specialty hinges, such as the Stanley CECB1900R54L concealed conductor hinge, which is sold as a left-handed item.

No. The Orca Hardware COM4545 uses ball bearings in a heavy duty commercial hinge. Plain bearing hinges are a different bearing arrangement: the Ives 1010RP is a steel plain bearing residential hinge with square corners rated medium duty, the Schlage Residential S3P1010 is a 3.5 inch by 3.5 inch square corner plain bearing mortise hinge rated medium duty, and the Emtek 92013 is a heavy duty plain bearing hinge at 3-1/2 inch by 3-1/2 inch with square corners. Those carry no ball bearing and, apart from the Emtek, sit at medium duty rather than the COM4545 heavy duty rating, so they are not a like-for-like swap on a commercial opening.

The Orca Hardware COM4545 is a heavy duty commercial hinge at 4-1/2 inch by 4-1/2 inch with square corners. For lighter interior work, the Delaney CH401X is a 4 inch by 4 inch commercial ball bearing hinge with square corner, and the Emtek 94013 is a heavy duty ball bearing hinge at 3-1/2 inch by 3-1/2 inch with square corners in plated steel, sold as a pair. The Deltana DSB35 is a 3-1/2 inch by 3-1/2 inch square residential hinge sold in pairs. All three run smaller leaves than the COM4545, so the door and frame mortise must match the leaf you order.

Concealed bearing hinges hide the bearing inside the knuckle rather than showing the ball bearing knuckle the Orca Hardware COM4545 uses. The Ives 3CB1HW is a steel heavy weight concealed bearing full mortise hinge with 3 knuckles rated heavy duty, which is the closest concealed bearing match to the COM4545 heavy duty rating. The Ives 3CB1 is a steel 3-knuckle concealed bearing full mortise hinge rated medium duty, and the Hager 920 is a full mortise concealed plain bearing hinge with 2 knuckle steel construction rated medium duty. Knuckle count and barrel appearance differ from the COM4545, which matters when the hinge has to look like the others already hung in the building.

The Orca Hardware COM4545 is a heavy duty commercial ball bearing hinge for commercial application. Detention openings use a different class of hinge: the BEST BB855 is a heavy-duty steel double weight concealed ball bearing prison hinge, the Stanley Security BB855 is a double weight prison hinge at 5 inch by 6 inch furnished with no holes and not swaged, and the Hager 990 STEEL is a full surface prison hinge at 3 inch by 4 inch with a welded tip, rated heavy duty. Those are double weight or full surface designs at sizes other than the COM4545 4-1/2 inch by 4-1/2 inch, and the Stanley comes unprepped, so the door and frame machining is not interchangeable with a standard 4-1/2 inch mortise.

Several 4-1/2 inch by 4-1/2 inch hinges share the COM4545 footprint without matching it. The McKinney SQ3331 is a square barrel 2-knuckle decorative hinge at 4-1/2 inch by 4-1/2 inch rated standard duty, a decorative square barrel rather than the Orca Hardware COM4545 heavy duty ball bearing build. The Stanley Security FBB191 is a 5-knuckle full mortise standard weight hinge at 4.5 inch by 4.5 inch. The Stanley Security CECB1900R54L is a three knuckle concealed bearing concealed conductor architectural hinge, steel full mortise, standard weight, 4-1/2 inch by 4-1/2 inch, square corner, left-handed, 4-wire, so it is handed and carries conductors where the COM4545 does not. Same size does not mean same hinge.

No. The Orca Hardware COM4545 is a full mortise ball bearing hinge for a single-direction swing. A double acting opening needs a pivot: the BEST DAP-3 is a heavy duty double acting pivot for commercial interior doors. The BEST CB1969R is a concealed bearing heavy weight pivot-reinforced hinge rated heavy duty, for openings where the door is pivot-hung and the hinge side needs reinforcement. Pivots mount at the top and bottom of the door rather than in the hinge jamb, so the door and frame prep is not the same as the COM4545 hinge pocket.

The Orca Hardware COM4545 is a heavy duty commercial hinge at 4-1/2 inch by 4-1/2 inch with square corners, available in Oil-Rubbed Bronze and Brushed Chrome and with or without a non-removable pin. Interior residential doors in the same building often carry smaller radius-corner hinges that the COM4545 will not drop into: the Delaney RH35xx is a 3-1/2 inch by 3-1/2 inch bulk steel residential interior hinge with a 5/8 inch radius sold in pairs, and the Delaney RH45xx is a 4 inch by 4 inch bulk residential exterior hinge with a 5/8 inch radius sold in pairs. Standardizing on the COM4545 across the whole building means the smaller radius preps have to be re-machined for a 4-1/2 inch square leaf, so a mixed order by door type is usually the cleaner route.

The Orca Hardware COM4545 is a heavy duty ball bearing full mortise hinge at 4-1/2 inch by 4-1/2 inch with square corners. The McKinney MP79 MacPro is a full mortise hinge with 5 knuckles at standard weight, and the McKinney MPB79 MacPro is a 5-knuckle hinge at standard weight. Both MacPro hinges are standard duty where the COM4545 is heavy duty, so the two sit at different weight classes for the same full mortise application.