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

The Orca COM3535 is a 4-1/2 x 4-1/2 inch full mortise hinge with square corners, so it drops into the square-cut mortise a hollow metal frame and door are already prepped for. Square corner is the standard commercial prep; if your existing hinges have rounded corners with a 5/8 inch or 1/4 inch radius, this one will not sit in that pocket without re-routing the wood door edge.

Ball bearing is the right call anywhere the door gets cycled hard or carries a closer. The bearings sit between the knuckles and take the vertical load, so the door does not sag or squeal the way a plain bearing hinge does under constant traffic. The Orca COM3535 is ball bearing at 4-1/2 x 4-1/2. Plain bearing is fine on a low-traffic interior door with no closer, and ZenSupply carries those too, like the Ives 1010RP and the Schlage Residential S3P1010 square corner mortise hinges.

It is rated medium duty, which covers interior commercial openings, offices, corridors, apartment units, and solid core doors on normal traffic. For a heavy exterior door, a lead-lined or oversize leaf, or a high-abuse opening, step up to a heavy weight hinge. In the same 4-1/2 x 4-1/2 size ZenSupply carries the Don-Jo HWBB74545 and HWBB84545 heavy weight full mortise ball bearing hinges, and the Hager BB1168 in a non-removable pin version.

Not without addressing the pin. The COM3535 is a standard full mortise ball bearing hinge, so on a reverse bevel outswing opening the pin sits on the outside and can be driven out. For that condition use a non-removable pin or security hinge. ZenSupply stocks the Deltana CSB45N, a 4-1/2 x 4-1/2 square hinge with a non-removable pin, and the Hager BB1168 NRP.

No. It is a 4-1/2 x 4-1/2 inch hinge, and a 4 inch mortise pocket is half an inch shorter, so the leaf will not seat and the screw holes will not line up. For a 4 inch square corner commercial ball bearing hinge ZenSupply carries the Delaney CH401X. Measure the leaf height on the hinge you are pulling before ordering.

A 5 inch prep needs a 5 inch leaf, and the Orca COM3535 is a 4-1/2 inch by 4-1/2 inch hinge, so it will not fill that mortise. The Don-Jo HWBB75045 is a heavy weight full mortise ball bearing hinge in 5 inch by 5 inch, and the Don-Jo HWBB85045 is a brass-base heavy weight full mortise ball bearing hinge in the same 5 inch by 5 inch size with a satin chrome finish. Measure the existing leaf height before ordering, because a 5 inch prep filled with a 4-1/2 inch hinge leaves an exposed pocket at top and bottom that has to be shimmed or patched.

The Orca COM3535 is a 4-1/2 inch by 4-1/2 inch commercial hinge and will not drop into a 3-1/2 inch residential prep. In that size, the Deltana DSB35 is a 3-1/2 inch by 3-1/2 inch square hinge sold in pairs and described as residential, and the Emtek 94013 is a heavy duty ball bearing hinge pair in 3-1/2 inch by 3-1/2 inch with square corners and a plated steel base, which keeps the bearing action of the COM3535 in the smaller leaf. The Delaney RH35xx is a 3-1/2 inch by 3-1/2 inch bulk steel interior residential hinge with a 5/8 inch radius corner, so confirm the door corner style before ordering that one against a square prep.

The Orca COM3535 is a standard full mortise ball bearing hinge, so on an out-swinging exterior door where the barrel is exposed, a non-removable pin version is the safer specification. The Hager BB1168 is a non-removable pin full mortise ball bearing hinge rated heavy duty, which keeps the ball bearing action while adding the set screw in the barrel. The Deltana CSB45N is a 4-1/2 inch by 4-1/2 inch square hinge pair with a non-removable pin, matching the COM3535 leaf size and square corner exactly. The Deltana DE44R5TA is a 4 inch by 4 inch security hinge in steel with a 5/8 inch radius corner, so it suits a 4 inch radius prep rather than a 4-1/2 inch square one.

No. The Orca COM3535 is a mechanical ball bearing hinge with no wire path through the barrel, so an access control or electrified lock installation needs a power transfer hinge in its place. The Command Access ETH-CB70 is an energy transfer hinge with a 3 knuckle standard weight steel base rated medium duty, the closest match to the COM3535 duty level. The BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect, also rated medium duty, and the higher wire count suits a lock plus request-to-exit and monitoring. The Stanley CECB1900R54L is a three knuckle concealed bearing concealed conductor hinge, steel full mortise standard weight, 4-1/2 inch by 4-1/2 inch square corner, left-handed, with 4 wires, so it drops into the same 4-1/2 inch square prep as the COM3535 but must be ordered to the door's hand.

The Orca COM3535 is a full mortise hinge, meaning both leaves mortise into the door and the frame. Where the frame cannot be cut, the Hager 1129 is a half mortise plain bearing commercial hinge in 4-1/2 inch standard weight steel, which mortises into the door and surface-applies to the frame. The Hager 990 STEEL is a full surface prison hinge, 3 inch by 4 inch with a welded tip and a heavy duty rating, applying to the face of both door and frame with no mortise at all. Confirm which face is available on the existing opening before choosing between them, because half mortise and full surface prep the door differently.

Six finishes: Oil-Rubbed Bronze, Satin Nickel, Polished Chrome, Brushed Chrome, Polished Brass, and Painted Black. If you are standardizing a building, that spread lets you match hinges to existing levers and closers on both traditional brass openings and modern black or nickel hardware without switching hinge models between doors.

No handing to specify. A full mortise butt hinge like the COM3535 is symmetrical, so the same hinge works on a left hand or right hand door. Handing only comes into play on hinges built for one direction, like an electrified hinge with a fixed wire exit, for instance the Stanley Security CECB1900R54L which is a left-handed 4-wire unit. Order the COM3535 by size and finish only.

The Orca COM3535 is sold as a single hinge, not a pair, so a standard opening taking three hinges needs three pieces per door and a tall door taking four needs four. That differs from several residential hinges sold as pairs, like the Deltana DSB35 or the Delaney bulk residential hinges. Count your doors before you build the order.

No. The COM3535 is not ADA compliant. If ADA is on the drawing for that opening, the hinge is not what gets you there anyway, it is the opening force and closer, but do not spec this hinge where a compliant hinge is called for.

No, the COM3535 is a standard ball bearing butt hinge with no spring, so it just carries the door. For self-closing without a surface closer, use a spring hinge. ZenSupply carries the Stanley Security 2060R full mortise spring hinge in the same 4-1/2 x 4-1/2 square corner size, so it drops into the identical mortise prep.

Monitoring requires a switch in the hinge, which the Orca COM3535 does not carry as a mechanical ball bearing hinge. The Command Access ETM-CB70 is an energy transfer monitor hinge with door position sensing on a 3 knuckle steel base rated medium duty, matching the COM3535 duty level. For a heavier leaf, the Command Access ETM-BB68 is an energy transfer monitor hinge with an integrated door position switch rated heavy duty. Both carry power and the door position signal in the same hinge, so one hinge in the set does the transfer and monitoring and the remaining hinges in the set can stay mechanical.

It is where the bearing sits. The Orca COM3535 is a ball bearing hinge with the bearing at the knuckle, rated medium duty for commercial use in a 4-1/2 inch by 4-1/2 inch square corner leaf. The Ives 3CB1 is a steel 3-knuckle concealed bearing full mortise hinge, also rated medium duty, with the bearing hidden inside the barrel so the knuckle line reads clean. The Ives 3CB1HW is the heavy weight concealed bearing version of that 3-knuckle full mortise hinge. Architects sometimes call out concealed bearing for appearance on visible openings; on a back-of-house or utility door the exposed bearing knuckle of the COM3535 is not an issue.

The Orca COM3535 covers the standard 4-1/2 inch by 4-1/2 inch square corner commercial opening at a medium duty rating, in oil-rubbed bronze, satin nickel, polished chrome, brushed chrome, polished brass, and painted black, so one part number carries most interior doors across a range of finish schemes. Where a leaf is heavier, the Don-Jo HWBB84545 is a heavy weight full mortise ball bearing hinge in the same 4-1/2 inch by 4-1/2 inch size in satin chrome, and the Stanley FBB191 is a 5-knuckle full mortise standard weight hinge in 4-1/2 inch by 4-1/2 inch. The McKinney MPB79 MacPro is a 5-knuckle standard weight hinge for the same class of work. Standardizing on one leaf size and corner style across the building is what keeps the prep consistent; the duty level is then the only variable you change door to door.

It changes what the hinge is built to do. The Orca COM3535 is a ball bearing hinge rated medium duty for commercial use, and the bearing is what keeps a door swinging freely under repeated daily cycles. A plain bearing hinge such as the Ives 1010RP, a steel plain bearing residential hinge with square corners sold as a set of three, or the Schlage Residential S3P1010 plain bearing mortise hinge in 3-1/2 inch by 3-1/2 inch with square corners, runs metal on metal at the knuckle. Both of those are also smaller than the COM3535 4-1/2 inch by 4-1/2 inch leaf, so they are not drop-in on a 4-1/2 inch prep. For a commercial opening that cycles hard, stay with a bearing hinge.

No. The Orca COM3535 is a standard ball bearing hinge with no spring in the barrel, so it holds the door wherever it is left. To close the door from the hinge itself, the Stanley 2060R is a full mortise spring hinge with square corners in 4-1/2 inch by 4-1/2 inch on a ferrous steel base, rated heavy duty, which puts the closing force in the same 4-1/2 inch square prep the COM3535 uses. That makes it the direct swap when a stair or corridor door has to self-close and there is no closer on the head.

It is not the hinge for that. The Orca COM3535 is rated medium duty, which suits normal commercial traffic. For detention and high-abuse work, the BEST BB855 is a heavy-duty steel double weight concealed ball bearing prison hinge, and the Stanley BB855 is a double weight prison hinge in 5 inch by 6 inch furnished with no holes and not swaged, meaning it is drilled and formed to the specific frame on site. The BEST CB1969R is a concealed bearing heavy weight pivot-reinforced hinge rated heavy duty for very heavy leaves. Those are different preps and different sizes from the COM3535 4-1/2 inch by 4-1/2 inch square leaf, so they are a specification change rather than a swap.

The Orca COM3535 has square corners, which matches a door and frame prepped with a router and chisel or factory-prepped square. If the existing mortise has rounded corners, a square corner hinge leaves a gap at each corner. In 4 inch, the Delaney RH45xx is a bulk residential exterior hinge pair with a 5/8 inch radius corner and the Delaney RH40xx is a 4 inch residential hinge pair offered in 5/8 inch radius and square. In the same 4-1/2 inch by 4-1/2 inch size as the COM3535, the McKinney SQ3331 is a square barrel 2-knuckle decorative hinge rated standard duty. Match the corner style and the radius to the existing prep before the leaf size decision.

They are the same kind of hinge in different leaf sizes. The Delaney CH401X is a 4 inch by 4 inch commercial ball bearing hinge with a square corner; the Orca COM3535 is a 4-1/2 inch by 4-1/2 inch square corner ball bearing hinge rated medium duty for commercial use. Both are square corner commercial bearing hinges, so the choice follows the door prep: 4 inch leaves on a lighter interior door, 4-1/2 inch on the standard commercial opening. They are not interchangeable in a cut mortise, since the half inch of leaf height will show.

No. The Orca COM3535 is a full mortise ball bearing hinge, which swings a door in one direction only. A double acting opening needs a pivot instead, and the BEST DAP-3 is a heavy duty double acting pivot for commercial interior doors. That is a floor and head prep rather than a hinge mortise in the jamb, so the frame and door have to be prepped for the pivot from the start; it is not something to change after the door is hung on hinges.

The Orca COM3535 is a commercial ball bearing hinge offered in plated and painted finishes including polished chrome, brushed chrome, and painted black, which suits normal interior commercial use. Where the specification calls for a non-ferrous base, the McKinney T2314 is a non-ferrous hinge, standard weight, 5 knuckle, rated medium duty, matching the COM3535 duty level with a base material that does not rust. On a pool room, kitchen, or exterior coastal opening, the base material is the deciding factor, not the leaf size.