Ives 5 Knuckle Ball Bearing Fu...
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Ives 5 Knuckle Ball Bearing Full Mortise Hinge with Round Corners - Standard Duty , NRP

Ives 5 Knuckle Ball Bearing Full Mortise Hinge with Round Corners - Standard Duty , NRP

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Model: 5BB1RC-14 4.5X4.5 652 NRP
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Ives 5 Knuckle Ball Bearing Full Mortise Hinge with Round Corners - Standard Duty , NRP

The Ives 5 Knuckle Ball Bearing Full Mortise Hinge (typically categorized under the 5BB1 series) is a workhorse in the commercial architectural hardware world. These hinges are designed for medium-weight doors or doors requiring low-frequency service in commercial and institutional settings.

The NRP (Non-Removable Pin) feature is a critical security upgrade, making this hinge ideal for out-swinging doors where the hinge barrel is exposed to the exterior.

Key Product Specifications

  • Hinge Type: Full Mortise (flush with the door and frame).

  • Knuckle Count: 5 Knuckle design for traditional aesthetics and strength.

  • Bearing Type: Ball Bearing (smooths the swing and prevents "metal-on-metal" grinding).

  • Corners: Round Corners (typically 1/4" or 5/8" radius, often used for doors pre-prepped by automated machinery).

  • Material: Usually available in Steel (for interior) or Stainless Steel/Brass (for exterior/corrosion resistance).

  • Pin Type: NRP (Non-Removable Pin). A set screw in the barrel locks the pin in place when the door is closed, preventing intruders from tapping the pin out to remove the door.

Why Choose Ives Quality?

Ives architectural hinges deliver professional-grade reliability with steel construction and dual ball bearing assemblies rated for 1,500,000 cycles under Grade 2 performance standards. UL Classified for windstorm rated assemblies and certified to exceed ANSI/BHMA A156.1 requirements, these hinges provide the dependable performance essential for demanding commercial applications. Engineered for medium-duty service with complete fastener packages for immediate installation.

Product Specs

Subcategory:
Hinges and Pivots
Knuckles:
5
Grade:
Grade 2
Fasteners:
Wood and Machine Screws
Corner Style:
Square Corners
Product Group:
Door Hinges and Pivots
Product Subgroup:
Full Mortise Hinges
Product Type:
Hinges
ANSI/BHMA:
ANSI/BHMA A156.1
Duty Level:
Standard Duty
Bearing Type:
Ball Bearing
Commercial/Residential:
Commercial
Tags:
door hinges 5
Product Model:
5BB1
Product Category:
Door Hinges and Pivots
Product Substrate:
Steel
Department:
Door Hardware

Ives 5BB1RC-14 4.5X4.5 652 NRP – Frequently Asked Questions

1) What does NRP mean on an Ives 5BB1 hinge, and do I need it on an out-swinging exterior door?
NRP stands for non-removable pin. A set screw in the barrel captures the pin while the door is closed, so nobody can tap the pin out and lift the door off its hinges. That matters on any out-swing opening, because the barrel sits on the outside where an intruder can reach it. On an in-swing door the barrel is protected already and NRP buys you nothing. If the leaf is exposed to the weather side, spec NRP.
2) Will a 4-1/2 inch Ives 5BB1 hinge drop into my existing hinge pockets?
The 5BB1 comes in 4-1/2 x 4-1/2, which is the standard commercial mortise size, so it lands in a pocket cut for a 4-1/2 inch hinge. The detail that decides it is the corner: the Ives leaf is square cornered, and a pocket routed by machine usually has a radiused corner (1/4 inch or 5/8 inch). A square hinge in a radius pocket leaves a gap at each corner; a radius hinge in a chiselled square pocket fits but shows a sliver. Pull one existing hinge and look at the corner before you order.
3) Does the Ives 5BB1 meet ANSI/BHMA hinge requirements for a commercial spec?
It is certified to ANSI/BHMA A156.1 and carries a Grade 2 rating, which is the standard duty tier of that standard. If your drawing calls for A156.1 Grade 1 hinges, this is not the one, and you should be looking at a heavy duty ball bearing full mortise hinge instead.
4) Can I use the Ives 5BB1 on a residential door or a 3-1/2 inch hinge prep?
Not into a 3-1/2 inch prep. The 5BB1 is a 4-1/2 x 4-1/2 commercial hinge, and the leaf will not fit a pocket cut for a residential 3-1/2 inch butt without recutting both the door and the jamb. For those openings look at the Deltana DSB35 3-1/2 x 3-1/2 square hinge or the Emtek 94013 heavy duty ball bearing hinges in 3-1/2 x 3-1/2 with square corners. If the residential door is already prepped 4 x 4, the Delaney CH401X 4 x 4 commercial ball bearing square corner hinge is the size match.
5) The opening needs power to the door for an electric lock - is there a hinge that replaces the 5BB1 and carries wire?
An electrified transfer hinge takes the place of one leaf in the set. The BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect at medium duty. The Command Access ETH-BB68 is a 5-knuckle heavy duty steel base energy transfer hinge, matching the 5-knuckle configuration of the 5BB1, and the ETH-CB70 is a 3-knuckle standard weight version. If the opening also needs door position sensing, the Command Access ETM-BB68 adds an integrated door position switch. The 5BB1 itself is a mechanical hinge with no wire path.
6) What is the closest equivalent to an Ives 5BB1 standard weight 5 knuckle ball bearing full mortise hinge from another manufacturer?
The McKinney MPB79 MacPro is the nearest match: a 5-knuckle standard weight hinge, the same knuckle count and duty level as the 5BB1. The Stanley Security FBB191 in 4-1/2 inch by 4-1/2 inch is also a 5-knuckle full mortise hinge in that size, though it is built to a heavy duty level rather than standard. For a square corner 4-1/2 by 4-1/2 ball bearing commercial hinge, the Orca Hardware 3535 Series covers the same opening at a medium duty level.
7) The door is heavier than standard weight - what ball bearing hinge should I use instead of a 5BB1?
Step up to a heavy duty ball bearing hinge. The Hager BB1168 is a full mortise ball bearing heavy duty hinge that also carries a non-removable pin, so it keeps the NRP security feature while moving to a heavier grade. The Don-Jo HWBB74545 and HWBB84545 are heavy weight full mortise ball bearing hinges in 4-1/2 inch by 4-1/2 inch, and the Don-Jo HWBB75045 and HWBB85045 cover 5 inch by 4-1/2 inch for wider or heavier leaves.
8) Which other hinges have a non-removable pin for an out-swinging exterior door?
The Hager BB1168 is a non-removable pin full mortise ball bearing hinge at heavy duty. The Deltana CSB45N is a 4-1/2 inch by 4-1/2 inch square hinge sold in pairs with a non-removable pin, and the Deltana DE44R5TA is a 4 inch by 4 inch security hinge with a 5/8 inch radius in steel, also sold in pairs. The Ives 5BB1 covers the same security concern with its NRP set screw at standard duty.
9) What looks like an alternative to the Ives 5BB1 but will not mortise into the same prep?
Several nearby hinges use a different prep entirely. The Hager 1129 is a half mortise hinge, so one leaf mounts to the frame face rather than into a frame mortise. The Hager 990 STEEL is a full surface prison hinge at 3 inch by 4 inch with a welded tip, surface applied to both door and frame. The BEST DAP-3 is a double acting pivot, which is a floor and head pivot set rather than a butt hinge. The Ives 5BB1 is full mortise, flush into both the door edge and the frame rabbet.
10) Do I need to buy screws separately for the Ives 5BB1 hinge?
No. Wood and machine screws both ship with the hinge, so you can hang a hollow metal frame with a wood door, or a wood frame, without a second trip. Machine screws thread into the tapped holes in a hollow metal frame or door; the wood screws go into a wood jamb or door. Nothing else is required to mount it.
11) Ball bearing or plain bearing hinge for a commercial door?
Ball bearing is what you want on any door carrying a closer or seeing regular traffic. The bearings between the knuckles take the load and let the leaves turn without the metal-on-metal grind that makes a plain bearing hinge squeal and wear oval. The Ives 5BB1 is a ball bearing hinge. Plain bearing is fine on a light interior door with no closer, and there are cheaper options there: the Orca Hardware 4 x 4 square corner plain bearing commercial hinge, or the Schlage Residential S3P1010 in 3-1/2 x 3-1/2. For an interior commercial door where you still want bearings, the Orca 3535 Series 4-1/2 x 4-1/2 square corner ball bearing hinge is the close cousin.
12) Is the Ives 5BB1 a full mortise hinge, or does it surface mount?
Full mortise. Both leaves recess into routed pockets, one in the door edge and one in the frame rebate, so the hinge sits flush and only the barrel shows when the door is closed. The door and frame both have to be prepped for it. If only one side can be mortised, a half mortise hinge such as the Hager 1129 is the correct type; if neither can be cut, you are into full surface hinges.
13) Do I have to specify left hand or right hand when ordering the Ives 5BB1?
No handing to call out. A full mortise butt hinge with a five knuckle barrel is symmetrical and works on either a left or right hand door. What you do have to get right is the size (4-1/2 x 4-1/2), the square corner, and whether you want the NRP option. Handing only enters the picture on hinges with directional features, such as the Stanley CECB1900R54L electrified hinge, which is called out left-handed.
14) What is the closest match to an Ives 5BB1 from another brand?
The nearest equivalents are the McKinney MP79 and MPB79 MacPro hinges, both five knuckle full mortise standard weight, and the Stanley FBB191 in 4-1/2 x 4-1/2, a five knuckle full mortise hinge. If you specifically need the non-removable pin on an out-swing door and want a heavier leaf, the Hager BB1168 NRP is the option to look at. Match the corner style to your existing pocket when you cross over, since the Ives leaf is square cornered.
15) I want the door to close by itself without a closer. Will the Ives 5BB1 do that?
It will not. The 5BB1 is a plain butt hinge with ball bearings for smooth swing, not a spring hinge, so it has no self-closing action. For a door that needs to swing shut on its own without a surface closer, use a spring hinge such as the Stanley 2060R in 4-1/2 x 4-1/2 full mortise square corner. Note that a self-closing hinge is a different animal from a fire door closing device, and your local code may not accept one in place of the other.
16) What is a simpler hinge than the Ives 5BB1 for a low traffic interior commercial door?
Plain bearing commercial hinges do the same full mortise job without the ball bearing raceways. Orca Hardware offers the 4040 Series in 4 inch by 4 inch square corner and the 4014 Series in 4 inch by 4 inch with a 1/4 inch radius corner, both medium duty plain bearing commercial hinges, plus the 3514 Series at 3-1/2 inch by 3-1/2 inch with a 1/4 inch radius. The 5BB1 carries a ball bearing to smooth the swing on doors in service, so the plain bearing versions suit openings that cycle less.
17) Is a concealed bearing hinge the same thing as the ball bearing Ives 5BB1?
No. The 5BB1 uses an exposed ball bearing between the knuckles of a 5 knuckle barrel. Concealed bearing hinges hide the bearing inside the knuckle for a smooth barrel line: the Hager 920 is a full mortise concealed plain bearing hinge with a 2 knuckle steel construction at medium duty, and the BEST CB1969R is a concealed bearing heavy weight pivot-reinforced hinge at heavy duty. The barrel appearance and knuckle count differ from the 5BB1, so mixing them on the same opening will read as mismatched.
18) For a detention or high security opening, what replaces a standard duty NRP hinge?
Detention openings use a purpose-built hinge rather than a standard weight butt. The BEST BB855 is a heavy-duty steel double weight concealed ball bearing prison hinge, and the Stanley Security BB855 double weight prison hinge is furnished with no holes and not swaged in 5 inch by 6 inch, so it is drilled and prepped to the frame. The Ives 5BB1 is a standard duty commercial hinge that ships with wood and machine screws ready to install.
19) I need the door to self close without a closer - what hinge do I use in place of the 5BB1?
A spring hinge does the closing. The Stanley Security 2060R in 4-1/2 inch by 4-1/2 inch is a full mortise spring hinge with a square corner on a ferrous steel base at heavy duty, so it drops into the same 4-1/2 inch by 4-1/2 inch full mortise prep the 5BB1 uses in that size. The 5BB1 is a plain swinging ball bearing hinge with no closing spring.
20) Is there a non-ferrous alternative to a steel 5BB1 for a coastal or wet opening?
The McKinney T2314 is a non-ferrous standard weight 5 knuckle hinge at medium duty, matching the 5 knuckle configuration of the 5BB1 without a ferrous base. The Ives 5BB1 is built on a steel substrate, which is the usual choice for interior and protected openings.
21) What finish does the Ives 5BB1 come in, and will it match the rest of my door hardware?
652 satin chrome over a steel base. That is the workhorse commercial finish, the same 652 you see on standard duty locksets and closers, and it reads as a dull silver rather than a bright one. It sits alongside 626 satin chrome brass on adjacent hardware and the two are visually very close, so a fleet of doors mixing them will not look wrong. For exterior or coastal openings where salt is a factor, plated steel is not the right base material.
22) What is the difference between the McKinney MP79 and MPB79 when cross referencing an Ives 5BB1?
Both are McKinney MacPro 5-knuckle standard weight hinges at standard duty, the same knuckle count and duty level as the Ives 5BB1. The MP79 is described as a full mortise hinge; the MPB79 is the MacPro hinge in the bearing designation. For a distributor cross referencing a 5BB1, both sit in the same standard weight 5-knuckle class.
How fast can I get the Ives 5BB1RC-14 4.5X4.5 652 NRP delivered?
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Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Ives 5BB1RC-14 4.5X4.5 652 NRP come with a warranty?
Absolutely. The Ives 5BB1RC-14 4.5X4.5 652 NRP is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Ives 5BB1RC-14 4.5X4.5 652 NRP?
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