Hager BB1279-NRP Full Mortise ...
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Hager BB1279-NRP - Non-Removable Pin Full Mortise Ball Bearing 5 Knuckle Hinge

Hager BB1279-NRP Full Mortise Ball Bearing Hinge with Non-Removable Pin - 5 Knuckle Steel Construction

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Model: BB1279-4.5X4.5-US10B-NRP
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Hager BB1279-NRP Full Mortise Ball Bearing Hinge with Non-Removable Pin - 5 Knuckle Steel Construction

Professional Full Mortise Hinge Solution for Medium Duty Applications

The Hager BB1279-NRP delivers reliable performance for medium weight doors requiring medium frequency service. This full mortise ball bearing hinge features steel construction with steel pin, 5 knuckle design, and non-removable pin with button tip and plug for enhanced security. Available in 3-1/2" x 3-1/2" (89 mm x 89 mm) size with reversible hole pattern option and complies with NFPA80 requirements for fire rated door assemblies.

Professional Features & Benefits

  • Ball Bearing Operation: Two ball bearings provide smooth, long-lasting operation for medium duty applications with reduced friction and wear.
  • Non-Removable Pin Security: Non-removable pin with button tip and plug prevents unauthorized hinge removal for enhanced door security.
  • 5 Knuckle Design: Five knuckle configuration provides optimal load distribution and structural integrity for medium weight doors.
  • Steel Construction: Steel leaves with steel pin deliver commercial-grade durability for demanding applications.
  • Fire Rating Compliance: Complies with NFPA80 requirements for use on fire rated door assemblies ensuring code compliance.
  • Reversible Hole Pattern: Available with reversible hole pattern for flexible installation and field adaptation.
  • ANSI Certification: ANSI A8112 certified ensuring compliance with industry standards for commercial door hardware.
  • Multiple Finish Options: Available in USP, US3, US4, US10, US10A, US10B, and US26D finishes to match various architectural requirements.
  • Two ball bearings. Non-rising removable pin with button tip and plug;

Technical Specifications

  • ANSI/BHMA: ANSIA8112
  • Applications: For use on medium weight doors or doors requiring medium frequency service.
  • Bearing Type: Ball Bearing
  • Certifications: ANSI A8112;
  • Commercial/Residential: Commercial
  • Duty Level: Medium Duty
  • Features: Two ball bearings. Non-removable pin with button tip and plug.
  • Finishes: USP, US3, US4, US10, US10A, US10B, US26D;
  • Fire Rating: Complies with NFPA80 requirements for use on fire rated door assemblies;
  • Knuckles: Features: Two ball bearings. Non-rising removable pin with button tip and plug ;
  • Material: Steel with Steel Pin ;
  • Notes: Available with reversible hole pattern..
  • Options: 3-1/2" x 3-1/2" (89 mm x 89 mm) available with reversible hole pattern.
  • Series: BB1279
  • Subcategory: Full Mortise Hinges

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, stile width, and handing as applicable to this product.
  2. Use manufacturer-provided templates to mark mounting hole locations accurately on door and frame surfaces.
  3. Prepare door and frame by drilling required holes and routing as specified in manufacturer instructions.
  4. Install all mounting hardware and secure the device to door and frame per manufacturer torque specifications.
  5. Adjust operational components for proper alignment, latching, and smooth operation throughout the full range of motion.
  6. Test device operation to verify proper function and make final adjustments as needed. Refer to manufacturer documentation for complete installation details and troubleshooting.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Hager Quality?

Hager architectural hinges deliver professional-grade reliability with steel construction and ball bearing operation rated for medium duty commercial applications. ANSI A8112 certification and NFPA80 fire rating compliance ensure code requirements are met. Engineered for demanding commercial applications where dependable performance and security are essential.

Full mortise commercial hinge engineered to meet or exceed ANSI standards for door weight, frequency of use, and finish durability.

Product Specs

Subcategory:
Full Mortise Hinges
Knuckles:
5
Product Group:
Door Hinges and Pivots
Product Subgroup:
Full Mortise Hinges
Product Type:
Hinges
Features:
Two ball bearings. Non-removable pin with button tip and plug.
ANSI/BHMA:
ANSI A8112
Series:
BB1279
Duty Level:
Medium Duty
Bearing Type:
Ball Bearing
Commercial/Residential:
Commercial
Product Substrate:
Steel
Product Category:
Door Hinges and Pivots
Department:
Door Hardware

Hager BB1279-4.5X4.5-US10B-NRP – Frequently Asked Questions

1) Can I use the BB1279-NRP on a fire rated door?
The BB1279-NRP complies with NFPA 80 requirements for use on fire rated door assemblies, and it is ANSI A8112 certified. That covers the hinge itself; the opening still has to be hung with the number and placement of hinges the door label calls for.
2) What does NRP mean on a hinge, and do I need it on my exterior doors?
NRP is a non-removable pin. On the BB1279-NRP the pin is fitted with a button tip and plug so it cannot be driven out from the knuckle. You want it on any outswing door where the barrel is on the unsecured side, exterior entrances, stairwells, tenant doors off a corridor. If someone can reach the hinge from outside the secure area, a standard removable pin lets them take the door off its hinges. On an inswing door where the barrel sits inside, NRP is not doing anything for you.
3) Ball bearing or plain bearing hinge, which do I need?
Ball bearing is what you use on any door with a closer on it, or a door that gets cycled all day. The BB1279-NRP carries two ball bearings between the knuckles, which takes the friction off the barrel and keeps the door from binding and dragging on the closer. Plain bearing is fine on a light interior door with no closer and light traffic, and it costs less, options there include the Orca Hardware 4040 Series in 4 x 4 square corner or the Ives 1010RP residential set. Put a plain bearing hinge under a closer and it wears out.
4) I need power to an electrified lock. Can the Hager BB1279 carry wires through the hinge?
The BB1279-NRP is a plain mechanical hinge, no conductor in it. To get power from the frame into the door leaf you need an electric through-wire hinge in the same position. Stocked options include the BEST CECB179-12C full mortise concealed bearing electrified hinge with a 12-wire quick connect, the Command Access ETH-CB70 three knuckle standard weight energy transfer hinge, or the ETH-BB68 five knuckle heavy duty version. If you also need to monitor door position, the Command Access ETM-CB70 and ETM-BB68 add a door position switch inside the hinge. You typically use one electric hinge and hang the rest of the opening on standard hinges like the BB1279.
5) Can I swap a BB1279-NRP into an existing hinge cutout without recutting the door?
If what is coming out is a 4-1/2 x 4-1/2 or 5 x 4-1/2 full mortise butt with square corners, yes, it drops into the existing mortise and screw pattern. Where it will not go straight in is a radius corner mortise, a 4 x 4 or 3-1/2 x 3-1/2 pocket, or a template hole pattern that does not line up. Measure the existing leaf and the corner shape off the door before you order, and check the Hager cross reference sheet for commercial hinges if you are replacing another brand and only have that manufacturer's number to go on.
6) What is the closest ball bearing equivalent to the Hager BB1279-NRP if I need a heavy weight hinge instead of medium duty?
The BB1279-NRP is a medium duty ball bearing hinge intended for medium weight doors or medium frequency service. Where the opening carries a heavier door or higher traffic, the Don-Jo HWBB74545 is a heavy weight full mortise ball bearing hinge in 4-1/2 inch by 4-1/2 inch, and the Don-Jo HWBB75045 is the same heavy weight full mortise ball bearing construction in 5 inch by 4-1/2 inch. Both cover the same full mortise prep in a heavy duty rating, and the 5 inch by 4-1/2 inch size matches the larger of the two Hager sizes.
7) Is there a medium duty commercial ball bearing hinge that matches the Hager BB1279-NRP in a 4-1/2 inch square corner size?
The Orca Hardware 3535 Series is a 4-1/2 inch by 4-1/2 inch square corner ball bearing commercial hinge rated medium duty, which lines up with the BB1279-NRP on bearing type and duty level in the same 4-1/2 inch by 4-1/2 inch size. The difference to confirm before you swap is the pin: the Hager carries a non-removable pin with button tip and plug, which is what keeps an outswing exterior leaf from being lifted off. If the door swings out and security drives the choice, stay with the non-removable pin version.
8) Is the Deltana CSB45N a substitute for the Hager BB1279-NRP since both have non-removable pins?
The non-removable pin is the only feature the two share. The Deltana CSB45N is a 4-1/2 inch by 4-1/2 inch square hinge sold as a pair with a non-removable pin. The BB1279-NRP is a commercial rated ball bearing hinge with two ball bearings, 5 knuckles, and ANSI A8112 certification, and it complies with NFPA80 requirements for use on fire rated door assemblies. If the opening is a labeled fire door or the spec calls out an ANSI grade, the ball bearing commercial hinge is the one that answers it. For an interior residential door where the pin just needs to resist removal, the CSB45N covers the same 4-1/2 inch prep.
9) The door needs to self-close. Is there a spring hinge alternative to the Hager BB1279-NRP?
The BB1279-NRP is a ball bearing hinge with no closing spring, so it swings freely and relies on a separate closer if the opening must self-close. The Stanley Security 2060R is a full mortise spring hinge in 4-1/2 inch by 4-1/2 inch square corner on a ferrous steel base, rated heavy duty, and it does the closing itself within the hinge. Fire rated openings that must latch on their own are the usual reason to go this direction; confirm the label requirements for the assembly before you specify.
10) I need a non-ferrous hinge instead of the Hager BB1279-NRP for a wet or coastal opening. What is available?
The BB1279-NRP is steel with a steel pin, which is the right build for interior commercial openings but not for a corrosive environment. The McKinney T2314 is a non ferrous hinge, standard weight, 5 knuckle, rated medium duty. It holds the same 5 knuckle full mortise appearance and medium duty class as the Hager while moving off a ferrous base material, so it will look consistent alongside the steel hinges on the rest of the building.
11) What finishes does the Hager BB1279-NRP hinge come in?
Nine finishes across both sizes: 605 bright brass, 606 satin brass, 612 satin bronze, 613 oil-rubbed satin bronze, 619 satin nickel, 625 bright chrome, 626 satin chrome, US10A antique bronze, and L1 flat black. For matching existing commercial openings, 626 satin chrome is the usual standard on institutional work and 613 the usual choice on hospitality and multi-family. Every finish is offered in both the 4-1/2 x 4-1/2 and the 5 x 4-1/2.
12) Do I need to specify handing when I order a Hager BB1279-NRP hinge?
No handing to call out. A full mortise butt hinge like the BB1279-NRP is symmetrical, the same hinge hangs a left hand or a right hand door, you just flip it. What you do specify is size and finish. Handing only becomes a question on hinges with wiring or a switch built in, such as the Stanley CECB1900R54L concealed conductor hinge, which is sold left handed.
13) Is the BB1279-NRP a five knuckle hinge, and does knuckle count matter?
Five knuckles, which is the standard commercial architectural pattern and what the door and frame on most existing commercial openings are already prepped and cut for. Three knuckle concealed bearing hinges such as the Ives 3CB1 hide the bearings inside the barrel for a cleaner look, but the barrel profile reads differently. If you are replacing hinges on a run of doors and want them to look identical, match the knuckle count you already have, five knuckle to five knuckle.
14) Is the Hager BB1279-NRP a commercial hinge or will a residential hinge do the same job?
This is a commercial hinge, steel leaves with a steel pin, ball bearing, ANSI A8112 certified. Residential hinges are a different animal, thinner gauge, plain bearing, and no fire rating claim, examples being the Delaney 3-1/2 x 3-1/2 bulk interior hinges or the Emtek 91013 residential plain bearing pair. If the door is a labeled opening, is on a closer, or is in a corridor or tenant entrance, use the commercial hinge. For an interior residential passage door in a single family or a light duplex, a residential hinge is the right spend.
15) How many BB1279 hinges do I need per door, and where do they go?
Hinges are sold and ordered individually here, not as a pair, so a three hinge door takes three. Standard commercial practice is three hinges on a door up to 7 feet 6 inches and a fourth added above that. Hager publishes a standard hinge locations sheet giving the exact dimensions from the head and the sill for the top, bottom and intermediate hinges, and a size option sheet for picking leaf width against door thickness and trim projection. On a labeled fire door, follow the hinge count on the door label rather than the general rule.
16) Will the BB1279-NRP work on a door that needs to self close without a closer?
No. The BB1279-NRP is a plain bearing-barrel butt hinge, no spring in it, the door stays wherever you leave it. For a door that has to close itself without a surface closer, you want a spring hinge, such as the Stanley Security full mortise spring hinge in 4-1/2 x 4-1/2 square corner. Note that on a labeled fire door your authority may require a closer rather than spring hinges, so confirm what the local inspector accepts before you buy either one.
17) What is the difference between the Hager BB1279-NRP and the plain BB1279?
Only the pin. Both are the same medium duty five knuckle full mortise ball bearing hinge in steel. The NRP version adds a non-removable pin with a button tip and plug so the pin cannot be driven out of the barrel. Order NRP on any outswing door where the hinge barrel is exposed on the outside; on inswing doors the standard pin is fine and easier to service.
18) What is the difference between the Hager BB1279-NRP and the Ives 3CB1 for a medium duty commercial door?
Both are medium duty full mortise hinges for commercial openings, but they differ in knuckle count and bearing style. The BB1279-NRP is a 5 knuckle hinge with two ball bearings; the Ives 3CB1 is a 3 knuckle concealed bearing full mortise hinge, also medium duty. Concealed bearings sit inside the barrel rather than showing as visible bearing races between knuckles, so the barrel reads as a plain 3 knuckle profile. Pick by what the rest of the openings already carry so the barrels match down the corridor.
19) Can I use a plain bearing hinge instead of the Hager BB1279-NRP on a commercial door?
Plain bearing and ball bearing are not the same service class. The BB1279-NRP uses two ball bearings and is rated for medium weight doors or doors requiring medium frequency service. Plain bearing commercial options include the Orca Hardware 4040 Series 4 inch by 4 inch square corner and the Orca Hardware 4014 Series 4 inch by 4 inch with 1/4 inch radius corners, both medium duty. Plain bearing suits lower cycle openings; ball bearing is what carries frequent traffic without the barrel wearing. On a corridor or stairwell door that cycles all day, stay with ball bearing.
20) What 5 knuckle full mortise hinges compare to the Hager BB1279-NRP?
Among the 5 knuckle full mortise options, the McKinney MP79 MacPro and MPB79 MacPro are both 5 knuckle standard weight full mortise hinges, and the Stanley Security FBB191 is a 5 knuckle full mortise standard weight hinge in 4-1/2 inch by 4-1/2 inch. The BB1279-NRP is 5 knuckle as well, with two ball bearings and a non-removable pin with button tip and plug. The knuckle count and full mortise prep are common across all of them, so the deciding factors are the bearing arrangement and whether the opening requires a pin that cannot be pulled.
21) Can I put a residential hinge in place of the Hager BB1279-NRP to save on a multi-family turn?
Only on unit interior doors, not on the corridor or exterior leaves. The BB1279-NRP is a commercial rated ball bearing hinge. Residential options include the Delaney 3-1/2 inch by 3-1/2 inch bulk steel interior hinges with 5/8 inch radius corners sold in pairs, the Delaney 4 inch by 4 inch bulk exterior residential hinges with 5/8 inch radius, and the Emtek 91013 residential plain bearing hinges in 3-1/2 inch by 3-1/2 inch with square corners in plated steel. Corner radius has to match the existing frame prep, and the Hager is the one that carries the commercial rating and NFPA80 compliance for fire rated assemblies.
22) What should I use instead of the Hager BB1279-NRP on a detention or high abuse opening?
The BB1279-NRP is rated medium duty for medium weight doors or medium frequency service, which is below what a detention opening asks of a hinge. The BEST BB855 is a heavy duty steel double weight concealed ball bearing prison hinge in the detention hardware line, and the Stanley Security BB855 is a double weight prison hinge in 5 inch by 6 inch, furnished with no holes and not swaged, rated heavy duty. The no-holes, non-swaged version is prepared to the frame in the field, so plan the shop drawings around that.
23) Is the Emtek 94013 an equivalent to the Hager BB1279-NRP since both are ball bearing?
They share the bearing type but not the application. The Emtek 94013 is a heavy duty ball bearing hinge sold in pairs, 3-1/2 inch by 3-1/2 inch with square corners in plated steel. The BB1279-NRP is a commercial hinge with ANSI A8112 certification and NFPA80 compliance for fire rated door assemblies, and it is offered in 4-1/2 inch by 4-1/2 inch and 5 inch by 4-1/2 inch. If the spec on the drawing calls for an ANSI certified commercial hinge, the Emtek does not answer it; if you are hanging a 3-1/2 inch interior door and want ball bearing action, it does.
24) What is the alternative to the Hager BB1279-NRP for a heavy weight door that needs pivot reinforcement?
The BB1279-NRP is built for medium weight doors or medium frequency service. When the leaf is heavy enough that the top hinge needs reinforcement, the BEST CB1969R is a heavy duty concealed bearing heavy weight pivot-reinforced hinge. It combines the concealed bearing barrel with pivot reinforcement at the top of the door, which is the usual answer on a wide or lead-lined leaf that a standard full mortise hinge is not sized for.
25) For a security hinge on a steel door, how does the Deltana DE44R5TA compare to the Hager BB1279-NRP?
Both address hinge side security. The Deltana DE44R5TA is a 4 inch by 4 inch steel security hinge with 5/8 inch radius corners and tamper resistant screws, sold in pairs. The BB1279-NRP handles it through the pin itself, using a non-removable pin with button tip and plug on a 5 knuckle ball bearing body, in 4-1/2 inch by 4-1/2 inch and 5 inch by 4-1/2 inch sizes. Corner style is the practical divider: the Deltana is a 5/8 inch radius corner and the Hager is specified with a reversible hole pattern option, so match whichever the existing frame prep already accepts.
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Does the Hager BB1279-4.5X4.5-US10B-NRP come with a warranty?
Absolutely. The Hager BB1279-4.5X4.5-US10B-NRP is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
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