Delaney 3-1/2" x 3-1/2" Residential Ball Bearing Hinge, 5/8" Radius (Pair)

The Delaney residential ball bearing hinge measures 3-1/2 x 3-1/2 inches with 5/8 inch radius corners, so it drops into an existing 3-1/2 inch mortise that was routed with a 5/8 inch radius template. If the pocket in your door and jamb has square corners, or a 1/4 inch radius, the leaf won't seat flush and you'd be chiseling the corners. Pull one of the old hinges and look at the corner shape before you order.

They're sold by the pair, two hinges in a package. Most 3-1/2 inch residential interior doors hang on three hinges, so figure two packages per door and a spare leaf, or order in the 50 pair carton if you're doing a whole building. #9 x 1 inch wood screws come in the box, so no separate fastener order for wood jambs.

No. It's a residential-rated hinge in 0.087 inch steel, sized for a standard 1-3/8 inch interior wood door. A corridor door, a fire-rated opening, or anything with a closer on it needs a commercial hinge in a larger leaf. For that, look at the Don-Jo HWBB74545 heavy weight full mortise ball bearing hinge at 4-1/2 x 4-1/2 inches, or the Orca 3535 Series 4-1/2 x 4-1/2 square corner ball bearing commercial hinge. Use the Delaney inside the units and the heavier hinge on the corridor.

Not without rework. The Delaney hinge has 5/8 inch radius corners, and a square-corner mortise leaves visible gaps at the four corners of each pocket, plus the leaf sits loose in a pocket cut wider than it needs. If your existing pockets are square, order a square corner hinge in the same 3-1/2 inch size instead, such as the Deltana DSB35 residential square hinge or the Emtek 94013 heavy duty ball bearing hinge. Going the other direction works, though: a square pocket can be rounded, but a radius pocket can't be un-rounded.

The Delaney RH65 hinge is a standard full mortise ball bearing hinge in 0.087 inch steel. Where the door swings out and the hinge barrel is exposed on the unsecured side, a non-removable pin hinge is the usual answer: the Hager BB1168 NRP is a non-removable pin full mortise ball bearing hinge rated heavy duty, and the Deltana CSB45N is a 4-1/2 inch by 4-1/2 inch square hinge sold by the pair with a non-removable pin. Both are larger than 3-1/2 inches, so the door and frame prep changes with them.

The Delaney RH65 series is a 3-1/2 inch by 3-1/2 inch steel ball bearing hinge with 5/8 inch radius corners, sold by the pair. For the same 3-1/2 inch by 3-1/2 inch size in a ball bearing hinge with square corners, the Emtek 94013 is a heavy duty ball bearing hinge sold as a pair in plated steel. Corner style has to match the mortise already cut in the jamb: a 5/8 inch radius hinge will not sit correctly in a square-cut pocket, and a square-corner hinge leaves gaps at the corners of a radius pocket. On new doors machined by a factory, check the door and frame prep before choosing between the two.

The Delaney RH65 hinge is a 3-1/2 inch by 3-1/2 inch residential-duty hinge in 0.087 inch gauge steel. A solid core or wider door needs both more leaf and more weight rating. The Don-Jo HWBB74545 is a heavy weight full mortise ball bearing hinge at 4-1/2 inch by 4-1/2 inch in satin chrome, and the Don-Jo HWBB75045 is a heavy weight full mortise ball bearing hinge at 5 inch by 4-1/2 inch. The Ives 3CB1HW is a steel heavy weight concealed bearing full mortise hinge with 3 knuckles. Moving up in leaf size means a wider mortise in both door and jamb, so this is a decision for new prep rather than a drop-in swap.

Ball bearings sit between the knuckles and carry the load on a rolling surface instead of metal rubbing on metal. Practical difference: the door swings smoother, doesn't squeak as it ages, and the knuckles don't wear oval on a door that gets used dozens of times a day. On a guest bedroom door it's overkill. On a unit entry, a bathroom in a rental, or any door with a closer or a heavy slab, it's the reason the door still hangs straight in five years. The plain bearing alternative in the same 3-1/2 inch size is the Emtek 91013 residential hinge, though that one has square corners rather than radius.

Three finishes, and they're all standard BHMA numbers so they cross-reference to the levers and deadbolts already on the doors: 605 bright brass, 613 satin bronze oil-rubbed, and 619 satin nickel. If your knobs are marked US15 that's 619, US10B is 613, and US3 is 605. Match on the number, not on the picture.

No handing to specify. A full mortise butt hinge like this one is symmetrical, so the same hinge hangs a left-hand or right-hand door. You just flip which leaf goes in the jamb. That's one less thing to get wrong when you're ordering hinges for a mixed set of openings.

Ball bearings in the Delaney RH65 hinge reduce friction so the door swings more smoothly and quietly, which matters most on doors that are heavier or cycle often. On a light interior passage door, a plain bearing hinge covers the same 3-1/2 inch by 3-1/2 inch size: the Emtek 91013 is a residential plain bearing hinge sold as a pair in plated steel with square corners, and the Schlage Residential S3P1010 is a 3.5 inch by 3.5 inch square corner plain bearing mortise hinge supplied three to a pack. Plain bearing hinges have no bearing races between the knuckles, so they carry the door on the knuckle faces themselves.

They match on size and packaging but not on corner or bearing type. The Deltana DSB35 is a 3-1/2 inch by 3-1/2 inch residential square hinge sold by the pair, while the Delaney RH65 hinge is a 3-1/2 inch by 3-1/2 inch ball bearing hinge with 5/8 inch radius corners, also by the pair. Square corners require a square-cut mortise, so the DSB35 is the right call when the existing pockets are chiseled square and the Delaney when they are router-cut to a 5/8 inch radius. If a radius corner is needed at 4 inches instead, the Deltana DE44R5TA is a 4 inch by 4 inch by 5/8 inch radius steel hinge sold as a pair.

The Delaney RH65 hinge is a residential-duty ball bearing hinge at 3-1/2 inch by 3-1/2 inch with 5/8 inch radius corners. In commercial hinges at that leaf size, the Orca Hardware 3514 series is a 3.5 inch by 3.5 inch commercial hinge with 1/4 inch radius corners and plain bearings, rated medium duty. Note the corner radius difference: 1/4 inch versus 5/8 inch corners are cut to different templates and are not interchangeable in an existing mortise. Orca's ball bearing commercial hinge, the 3535 series, is a 4-1/2 inch by 4-1/2 inch square corner hinge, so it steps up in size as well.

The Delaney RH65 hinge is a plain mechanical hinge with no provision for power transfer. When an electric strike, electrified lock, or door position monitoring has to be wired through the hinge, the part is a different class entirely: the Command Access ETH-BB68 is an energy transfer hinge with 5 knuckles on a heavy duty steel base, the ETH-CB70 is a 3 knuckle standard weight energy transfer hinge rated medium duty, and the BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect. For door position sensing built into the hinge, the Command Access ETM-BB68 adds an integrated door position switch. These require a wire raceway in the door and frame, so they are not a swap for a standard mortise hinge.

The Delaney RH65 ball bearing hinge is priced and sold by the pair, two hinges, with 50 pair to a carton. Among comparable residential hinges, the Emtek 91013, Emtek 92013, Emtek 94013, Deltana DSB35 and Deltana DSB3 are all sold as a pair, while the Ives 1010RP residential hinge comes as a set of 3 and the Schlage Residential S3P1010 is a pack of 3. This matters when quoting a job: a standard interior door usually takes three hinges, so pair-packed hinges need to be counted in pairs against the door schedule rather than one pack per door.

No, they do different jobs. The Delaney RH65 is a free-swinging full mortise ball bearing hinge, so the door stays where it is put. A spring hinge closes the door on its own: the Stanley Security 2060R is a full mortise spring hinge with square corners at 4.5 inch by 4.5 inch on a ferrous steel base, rated heavy duty. Spring hinges are specified where a door has to self-close, such as a garage-to-house door, and they are tensioned during install rather than simply screwed in. They are also a different leaf size and corner style, so they will not drop into a 3-1/2 inch radius mortise.

0.087 inch is the thickness of the steel leaf, which is what carries the door's weight before the leaf starts to flex or the screw holes elongate. That's residential-weight material. It handles a hollow core or a normal solid core interior slab on three hinges without complaint. Where it stops being enough is a heavy solid wood or glass-panel door, or any door with a closer pulling on it all day, and there you step up to a heavy weight hinge with a larger leaf.

Yes, they carton at 50 pair. At three hinges a door that's about 33 doors per carton, so a 100-unit building running two interior doors per unit takes roughly six cartons per finish. Worth picking one finish and one corner radius across the whole property so your maintenance stock is a single line item and a turn crew can rehang any door from the same box.

The Delaney RH65 is a full mortise ball bearing hinge where the bearings sit in visible races between the knuckles. A concealed bearing hinge houses the bearing inside the barrel so the knuckle line reads as a clean cylinder: 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 bearing hinge with 2 knuckle steel construction, also medium duty. Both are commercial architectural hinges rather than residential ones, so specify them where the door schedule calls for a commercial hinge or where the exposed bearing races are not wanted on a visible barrel.