Hager BB1191 Full Mortise Ball...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$86.21
$45.33
Hager BB1191 Full Mortise Ball Bearing Hinge, Standard Weight, 5 Knuckle HAG-BB1191

Hager BB1191 Full Mortise Ball Bearing Hinge with 5 Knuckles - Standard Weight Commercial Grade

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Model: HAG-BB1191 4-1/2x4-1/2 US26D
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$86.21
$45.33
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Hager BB1191 Full Mortise Ball Bearing Hinge with 5 Knuckles - Standard Weight Commercial Grade

Professional Full Mortise Hinge Solution for Medium Weight Doors

The Hager BB1191 Full Mortise Ball Bearing Hinge delivers reliable performance for medium weight doors requiring medium frequency service. This 5-knuckle hinge features dual ball bearings for smooth operation and is constructed with brass or stainless steel materials with stainless steel pins. Certified to ANSI A2111 (Brass) and ANSI A5111 (Stainless Steel) standards, this commercial-grade hinge meets ANSI/BHMA A156.1 specifications for professional door hardware applications.

Professional Features & Benefits

  • Dual Ball Bearing Design: Two ball bearings provide smooth, quiet operation and extended service life for medium frequency applications.
  • 5-Knuckle Construction: Five knuckle design distributes load evenly across the hinge for enhanced stability and durability.
  • Non-Rising Removable Pin: Features button tip and plug design for easy maintenance while preventing accidental pin removal during operation.
  • Premium Material Options: Available in brass with stainless steel pin or stainless steel with stainless steel pin for corrosion resistance and longevity.
  • Fire Rating Compliance: Stainless steel model complies with NFPA80 requirements for use on fire rated door assemblies.
  • Multiple Finish Options: Available in US3, US4, US5, US9, US10, US15, US15A, US19, US26, and US26D finishes to match architectural requirements.
  • ANSI Certification: Meets ANSI A2111 (Brass) and ANSI A5111 (Stainless Steel) standards for commercial door hardware performance.
  • Optional Non-Removable Pin: NRP option available for enhanced security applications where pin removal prevention is required.
  • Non-rising removable pin with button tip and plug. Two ball bearings.

Technical Specifications

  • ANSI/BHMA: ANSIA2111 (Brass), ANSIA5111 (Stainless Steel)
  • Applications: For use on medium weight doors or doors requiring medium frequency service.
  • Bearing Type: Ball Bearing
  • Certifications: ANSI A2111 (Brass), ANSI A5111 (Stainless Steel)
  • Commercial/Residential: Commercial
  • Features: Non-rising removable pin with button tip and plug. Two ball bearings.
  • Finishes: US3, US4, US5, US9, US10, US15, US15A, US19, US26, US26D
  • Fire Rating: Stainless steel model complies with NFPA80 requirements for use on fire rated door assemblies
  • Knuckles: Fire Rating: Stainless steel model complies with NFPA80 requirements for use on fire rated door assemblies
  • Material: Brass with Stainless Steel Pin, Stainless Steel with Stainless Steel Pin
  • Options: NRP (Non-removable pin)
  • Subcategory: Full Mortise Hinges

Installation & Operation

  1. Review manufacturer specifications and verify door preparation requirements including door thickness, frame material compatibility, and handing requirements for this full mortise application.
  2. Use manufacturer-provided templates to mark mortise locations accurately on both door edge and frame jamb surfaces.
  3. Prepare door and frame by routing mortise pockets to specified depth and dimensions for flush hinge leaf installation.
  4. Install hinge leaves in mortised pockets and secure with appropriate screws per manufacturer torque specifications.
  5. Adjust hinge alignment for proper door operation, ensuring smooth swing throughout full range of motion without binding.
  6. Test door 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

Fire Rating Compliance

The stainless steel model of the BB1191 hinge complies with NFPA80 requirements for use on fire rated door assemblies, making it suitable for applications where fire safety compliance is mandatory. This certification ensures the hinge maintains its integrity during fire conditions as required by building codes.

Why Choose Hager Quality?

Hager commercial hinges are manufactured in accordance with ANSI/BHMA A156.1 standards and represent the industry’s premiere architectural hinge solutions. The BB1191 features precision ball bearing construction with brass or stainless steel materials for reliable performance in demanding commercial applications. With ANSI certification and optional fire rating compliance, this hinge delivers the dependable operation essential for professional door hardware installations.

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:
Half Surface Hinges
Features:
Non-rising removable pin with button tip and plug. Two ball bearings.
ANSI/BHMA:
ANSI A2111 (Brass), ANSI A5111 (Stainless Steel)
Bearing Type:
Ball Bearing
Commercial/Residential:
Commercial
Product Model:
B1191
Product Category:
Door Hinges and Pivots
Product Substrate:
Brass with Stainless Steel Pin, Stainless Steel with Stainless Steel Pin
Department:
Door Hardware

Hager HAG-BB1191 4-1/2x4-1/2 US26D – Frequently Asked Questions

1) Can the Hager BB1191 hinge be used on a fire rated door assembly?
Order the stainless steel version for a labeled opening. The stainless steel BB1191 complies with NFPA80 for use on fire rated door assemblies; that compliance is stated for the stainless model, so on a fire rated door specify stainless steel with the stainless steel pin rather than the brass build. Both material builds use a stainless steel pin, so the pin itself is not the deciding factor here, the leaf material is.
2) Is the Hager BB1191 a heavy enough hinge for a solid core door in a busy corridor?
It's a standard weight hinge, built for medium weight doors and doors needing medium frequency service. That covers most solid core wood and hollow metal doors in offices, classrooms, tenant suites, and retail back-of-house. Two ball bearings in a five knuckle barrel carry the load and keep the swing quiet. If you're hanging an unusually heavy door or an entrance that cycles constantly all day, move up to a heavy weight ball bearing hinge rather than pushing this one past what it's rated for.
3) What size Hager BB1191 hinge do I need for a standard 1-3/4 inch commercial door?
4-1/2 x 4-1/2 is the usual pick for a 1-3/4 inch door of standard width. The BB1191 runs from 3-1/2 x 3-1/2 up through 6 x 6, with 4 x 3-1/2, 4 x 4, 4-1/2 x 4, 5 x 4, 5 x 4-1/2, 5 x 5, 6 x 4-1/2 and 6 x 5 in between. Hinge sizes read as leaf height by open width: the height follows the door weight and width, and the open width has to clear the door thickness plus any trim or stop projection the door has to swing past. If the door is thicker than usual or has to clear deep casing, take the wider option in the same height.
4) Do I need the NRP option on the Hager BB1191 for an out-swinging exterior door?
Yes, specify NRP on any out-swing exterior or secure opening. The standard BB1191 ships with a non-rising removable pin with button tip and plug, and on an out-swinging door the hinge barrel sits on the outside where that pin can be reached. The NRP (non-removable pin) option is offered on this hinge and blocks pin removal, so the leaves stay together even if someone gets at the barrel. On in-swinging interior doors the standard removable pin is fine and makes it easier to lift the door off for maintenance.
5) What is the difference between the Hager BB1191 and the BEST F173 hinge?
They hang a door two different ways. The Hager BB1191 is a full mortise hinge: both leaves are routed into pockets, one in the door edge and one in the frame jamb, so the leaves sit flush. The BEST F173 is a half surface hinge, so only the frame leaf is mortised and the door leaf mounts to the face of the door. The BB1191 has five knuckles and runs two ball bearings with a non-rising removable pin, button tip and plug; the F173 uses a plain bearing with a removable pin. Materials differ as well - the BB1191 is brass with a stainless steel pin or stainless steel with a stainless steel pin, while the F173 is steel.
6) What's the difference between a full mortise hinge and a half surface hinge, and which one do I need?
It comes down to what you can cut. The Hager BB1191 is full mortise, so both leaves get let into a mortise, one in the door edge and one in the frame jamb, and both sit flush. That's the normal arrangement on a new or already-prepped commercial opening. A half surface hinge, like the BEST F173, mortises into the frame but applies to the face of the door instead. That's the option when the door itself cannot take an edge mortise, such as a metal-clad or heavily reinforced door. If your frame and door are already prepped for butt hinges, full mortise is the direct fit.
7) Which finishes does the Hager BB1191 hinge come in so I can match the other doors in my building?
Nine finishes: 605 bright brass, 606 satin brass, 612 satin bronze, 613 satin bronze oil-rubbed, 619 satin nickel, 625 bright chrome, 626 satin chrome, 629 bright stainless steel, and 630 satin stainless steel. For a building already standardized on satin chrome trim, 626 is the match; 630 satin stainless is the usual pairing with stainless lever and exit hardware. Those BHMA numbers are the same ones stamped on the rest of your door hardware, so match on the number rather than the name.
8) Should I order the brass or the stainless steel Hager BB1191 for an exterior or wash-down opening?
Stainless steel is the one to spec where moisture, salt air, or frequent cleaning is in play. The BB1191 is built either in brass with a stainless steel pin or in stainless steel with a stainless steel pin, so the pin is stainless either way, but only the stainless build gives you a stainless leaf as well. Stainless is also the model that complies with NFPA80 for fire rated assemblies, so on an exterior stair or service door that's also labeled, stainless answers both requirements at once. Brass is the choice where the finish has to match brass trim on interior openings.
9) Our spec calls for an ANSI/BHMA A156.1 certified full mortise hinge. Does the Hager BB1191 qualify?
It does, and the certification splits by material: ANSI A2111 for the brass build and ANSI A5111 for the stainless steel build, with the hinge manufactured to ANSI/BHMA A156.1. Put the matching designation on your submittal depending on which material you order. It's a commercial grade hinge, and the stainless version additionally complies with NFPA80 for fire rated door assemblies if the opening is labeled.
10) Do I have to specify handing when ordering a Hager BB1191 hinge?
No hand to call out. A full mortise butt hinge like the BB1191 is symmetrical, so the same hinge hangs a left hand or right hand door. What you do have to pin down on the order is leaf size, finish, whether you want the brass or stainless steel build, and whether the opening needs the NRP option. Swing direction only matters for that last one, since an out-swinging door exposes the pin.
11) Can I replace worn hinges on an existing commercial door with the Hager BB1191 without recutting the door?
In most cases yes, as long as you order the same leaf dimensions that are in the opening now. Pull one existing hinge, measure the leaf height and the open width, and match it to the BB1191 size list, which runs 3-1/2 x 3-1/2, 4 x 3-1/2, 4 x 4, 4-1/2 x 4, 4-1/2 x 4-1/2, 5 x 4, 5 x 4-1/2, 5 x 5, 6 x 4-1/2, 6 x 5, and 6 x 6. Because it's a full mortise hinge, it drops into the same door edge and jamb mortises the old full mortise hinge came out of. Also check the corner of the old leaf against the replacement before you cut anything, and if the door is out-swinging take the NRP option while you're at it.
12) Ball bearing or plain bearing hinge - which one for a medium traffic commercial door?
The Hager BB1191 carries two ball bearings and is built for medium weight doors or doors requiring medium frequency service, with the bearings taking the load so the door swings smoothly and quietly through its service life. The BEST F173 runs a plain bearing and is rated medium duty. Bearing type is the practical dividing line: a ball bearing hinge is specified where the door cycles often enough that the knuckle wear matters, and a plain bearing hinge is the simpler build. Both are removable pin hinges.
13) Which hinge should I specify for an outswing exterior door where the pin is on the outside?
Specify the Hager BB1191 with the NRP option. Its standard build uses a non-rising removable pin with a button tip and plug, and the NRP non-removable pin option is offered for security applications where the pin must not be able to be pulled. The BEST F173 is a removable pin hinge. On an outswing door the barrel faces the unsecured side, so the pin choice is what keeps someone from lifting the door off its hinges, and it is worth confirming before the order goes in rather than after the frames are set.
14) What is the better hinge choice for a damp or corrosive opening such as a pool room or a coastal entry?
Take the Hager BB1191 in stainless steel with a stainless steel pin, which is certified to ANSI A5111, and pair it with 629 bright stainless steel or 630 satin stainless steel so the finish matches the base material. Brass with a stainless steel pin is the other BB1191 build, certified to ANSI A2111, and it is available in finishes including 605 bright brass, 606 satin brass, 612 satin bronze and 613 satin bronze oil-rubbed. The BEST F173 is a steel hinge, which is the usual interior choice. The stainless steel BB1191 also complies with NFPA80 for use on fire rated door assemblies, which matters if the same opening is on a rated wall.
How fast can I get the Hager HAG-BB1191 4-1/2x4-1/2 US26D delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
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 Hager HAG-BB1191 4-1/2x4-1/2 US26D come with a warranty?
Absolutely. The Hager HAG-BB1191 4-1/2x4-1/2 US26D 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 Hager HAG-BB1191 4-1/2x4-1/2 US26D?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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