Don-Jo HWBB74545 Heavy Weight ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$87.30
$76.68
Don-Jo HWBB74545 Heavy Weight Full Mortise Ball Bearing Hinge 4-1/2" x 4-1/2" in Satin Chrome

Don-Jo HWBB74545 Heavy Weight Full Mortise Ball Bearing Hinge 4-1/2" x 4-1/2" in Satin Chrome

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Model: HWBB74545-652
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$87.30
$76.68
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Don-Jo HWBB74545 Heavy Weight Full Mortise Ball Bearing Hinge 4-1/2" x 4-1/2" in Satin Chrome

The Don-Jo HWBB74545 is a heavy weight, full mortise ball bearing hinge engineered for demanding commercial door applications. Measuring 4.5" x 4.5" with square corners and a 5-knuckle design, this hinge is constructed from 0.18-gauge steel and finished in Satin Chrome (652) for lasting durability and a professional appearance. Designed specifically for heavy doors and high-frequency use, it meets ANSI A8111 standards and includes a non-removable pin (NRP) as standard for enhanced security.

Key Features

  • Heavy Weight Construction: Built from 0.18-gauge steel specifically engineered for heavy doors in demanding commercial environments.
  • Full Mortise Design: Full mortise installation provides a clean, flush fit for professional-grade door hardware applications.
  • Ball Bearing Operation: Ball bearing mechanism delivers smooth, high-frequency operation ideal for doors that see constant daily use.
  • 4.5" x 4.5" Size with Square Corners: Standard commercial sizing with square corners for compatibility with a wide range of commercial door preparations.
  • 5-Knuckle Configuration: Five-knuckle design provides superior strength and load distribution for heavy-duty performance.
  • Non-Removable Pin (NRP) Standard: All heavy duty hinges include non-removable pins as standard, providing added security against pin removal on outswing doors.
  • Satin Chrome Finish (652): Corrosion-resistant Satin Chrome finish complements a wide range of commercial door hardware and architectural styles.
  • High-Frequency Rated: Designed and tested for high-frequency door operation, ensuring long-term reliability in busy commercial settings.

Certifications & Compliance

  • ANSI A8111 Compliant
  • Commercial Grade
  • Non-Removable Pin (NRP) Standard on All Heavy Duty Hinges

Technical Specifications

  • Product Group: Door Hinges and Pivots
  • Product Subgroup: Full Mortise Hinges
  • Commercial/Residential: Commercial
  • Bearing Type: Ball Bearing
  • Corner Style: Square corners
  • Knuckles: 5
  • Product Size: 4.5" x 4.5"
  • Product Category: Door Hinges and Pivots
  • Department: Door Hardware

Typical Applications

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

Why Don-Jo HWBB74545?

Don-Jo HWBB74545 full mortise ball bearing hinges deliver professional-grade reliability through 0.18-gauge steel construction, a 5-knuckle design, and ANSI A8111 compliance — all purpose-built for heavy doors and high-frequency commercial use. With non-removable pins included as standard and a durable Satin Chrome finish, this hinge is engineered to meet the rigorous demands of commercial door hardware installations where dependable, long-term performance is essential.

Manufacturer Resources

DON-JO Hinges

Product Specs

Subcategory:
Hinges
Product Group:
Door Hinges and Pivots
Product Subgroup:
Full Mortise Hinges
Product Type:
Full Mortise Hinges
Duty Level:
Heavy Duty
Commercial/Residential:
Commercial
Bearing Type:
Ball Bearing
Corner Style:
Square corners
Knuckles:
5
Product Model:
HWBB74545
Product Size:
4.5" x 4.5"
Product Category:
Door Hinges and Pivots
Product Substrate:
Steel
Department:
Door Hardware

Don-Jo HWBB74545-652 – Frequently Asked Questions

1) Will the Don-Jo HWBB74545 hinge drop into an existing 4-1/2 x 4-1/2 square corner door prep?
Yes. The HWBB74545 is a 4-1/2 by 4-1/2 inch full mortise hinge with square corners, which is the standard commercial hollow metal prep. If your frame and door are cut with radius corners instead, a square corner hinge will not seat cleanly in the mortise without rework.
2) Do I need to order non-removable pins separately for an outswing exterior door?
No, the pin is already handled. The HWBB74545 ships with a non-removable pin as standard, so on an outswing door where the barrel sits on the exterior side, the pin can't be driven out to lift the door off.
3) What's an equivalent heavy weight full mortise ball bearing hinge with NRP if I need another brand?
The Hager BB1168 NRP is the closest match in the cross-brand lineup, a full mortise ball bearing heavy duty hinge with a non-removable pin. If you're standardizing on concealed bearings rather than a visible 5-knuckle barrel, the Ives 3CB1HW is the heavy weight concealed bearing full mortise option.
4) What should I use if the opening needs power transferred through the hinge?
The Don-Jo HWBB74545 is a mechanical ball bearing hinge with no wiring path. For an electrified opening, the Command Access ETH-BB68 is a heavy duty 5-knuckle steel base energy transfer hinge, and the Command Access ETM-BB68 adds an integrated door position switch if you also need monitoring. Both are heavy duty like the Don-Jo, so you can carry one electrified hinge in the heavy duty hinge set and use the Don-Jo at the remaining positions.
5) What is the closest equivalent to the Don-Jo HWBB74545 from another brand?
The Hager BB1168-NRP is the nearest match. Both are full mortise ball bearing hinges rated heavy duty, and both come with a non-removable pin as standard, which is what the NRP in the Hager designation refers to and what the Don-Jo HWBB74545 includes on all of its heavy duty hinges. The Don-Jo is 4-1/2 inch by 4-1/2 inch with square corners, 5 knuckles, and a steel body, so if your frame is already prepped for a square corner 4-1/2 inch hinge the two drop into the same mortise.
6) Is there a lighter duty 4-1/2 inch square corner ball bearing hinge if the door is not heavy?
Yes. 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. It shares the same leaf size, corner style and bearing type as the Don-Jo HWBB74545, so the frame prep is the same; the difference is the duty rating, with the Don-Jo built as a heavy duty steel hinge for heavy doors and high-frequency openings.
7) Will a Stanley FBB191 4.5 x 4.5 work in place of the Don-Jo HWBB74545?
They share the footprint and knuckle count: the Stanley FBB191 in 4.5 by 4.5 is a 5-knuckle full mortise hinge, and the Don-Jo HWBB74545 is a 5-knuckle full mortise hinge at the same 4-1/2 by 4-1/2 size. The Stanley is catalogued as a standard weight hinge, while the Don-Jo is built as a heavy weight unit in 0.18-gauge steel with a non-removable pin included. If the opening is a heavy door on a high-traffic entrance, stay with the heavy weight version.
8) My frame is prepped for half mortise, not full mortise. Can I still use this hinge?
No. The Don-Jo HWBB74545 is a full mortise hinge, meaning both leaves mortise into the door and the frame. For a half mortise condition, the Hager 1129 is a half mortise plain bearing commercial hinge at 4-1/2 inch in standard weight steel with a heavy duty rating. Confirm which prep the frame carries before ordering, since the two leaf configurations are not interchangeable.
9) Is a heavy weight ball bearing hinge overkill for a normal office door, or do I actually need it?
It depends on door weight and traffic, not on the room. Heavy weight means a thicker leaf, 0.18-gauge steel here, and it's meant for heavy doors such as fire-rated hollow metal, lead-lined, or wide leaves, and for openings cycled constantly. A standard weight ball bearing hinge handles an ordinary interior office door fine. Spec the HWBB74545 where the door is heavy, the closer is working hard, or both.
10) What's the difference between this ball bearing hinge and a plain bearing hinge on a door with a closer?
Ball bearings sit between the knuckles and carry the load as the door swings, so they don't wear flat under a closer pulling the door hundreds of times a day. Plain bearing hinges, like the Hager 1129 or the Orca 4040 series, run metal on metal and are better suited to lower-cycle openings. On a closer-equipped commercial door, go with the bearing hinge.
11) I need 4-1/2 inch hinges but not heavy weight. What else is there?
Two standard weight 4-1/2 by 4-1/2 options: the Stanley FBB191, a 5-knuckle full mortise standard weight hinge, and the Orca 3535 series square corner ball bearing hinge in medium duty. Both are square corner like the HWBB74545, so they suit the same door prep.
12) Can I use the Don-Jo HWBB74545 on a residential interior door?
It will physically hang one if the door is prepped 4-1/2 by 4-1/2 with square corners, but most residential doors are cut for 3-1/2 inch hinges. For those, look at a 3-1/2 inch residential hinge such as the Deltana DSB35 or Emtek 91013. The HWBB74545 is built as commercial hardware, and a residential door doesn't need the leaf thickness.
13) Is the Don-Jo HWBB74545 handed? Do I have to order left or right?
No handing to specify. A 5-knuckle full mortise hinge with square corners is non-handed, so the same hinge works on a left or right hand door. Electrified and concealed-conductor hinges are where handing comes into it, like the Stanley CECB1900R54L, which is ordered left-handed.
14) I need a 4-1/2 inch heavy duty hinge but with concealed bearings instead of exposed ball bearings. What should I use?
Look at the Ives 3CB1HW, a steel heavy weight concealed bearing full mortise hinge with 3 knuckles. It carries the same heavy duty rating and full mortise mounting as the Don-Jo HWBB74545, but the bearings are hidden inside the barrel and the knuckle count is 3 rather than the 5-knuckle configuration on the Don-Jo. Choose on the barrel appearance you want the opening to carry.
15) Is the Deltana CSB45N the same thing as the Don-Jo HWBB74545?
They look similar on paper and are not interchangeable in every application. The Deltana CSB45N is a 4-1/2 inch by 4-1/2 inch square hinge sold in pairs with a non-removable pin, matching the Don-Jo HWBB74545 on leaf size, square corner and NRP. The Don-Jo is a heavy weight ball bearing hinge for commercial openings, built to ANSI A8111 with 5 knuckles and 0.18-gauge steel, and it ships as a single hinge rather than a pair.
16) Can I use residential ball bearing hinges instead on a commercial door?
The Emtek 94013 heavy duty ball bearing hinges are 3-1/2 inch by 3-1/2 inch square corner plated steel sold in pairs, and the Emtek 91013 is a 3-1/2 inch residential plain bearing hinge. Both are smaller leaves than the 4-1/2 inch by 4-1/2 inch Don-Jo HWBB74545 and will not fill a 4-1/2 inch mortise. For a commercial opening on heavy doors with high-frequency use, the Don-Jo is the hinge built for that duty, with 5 knuckles and a non-removable pin as standard.
17) What is the alternative if the door needs to self-close without a closer?
A spring hinge does that job. The Stanley 2060R in 4.5 by 4.5 is a heavy duty full mortise spring hinge with square corners in a ferrous steel base, matching the Don-Jo HWBB74545 on size, corner style and full mortise prep. The Don-Jo is a ball bearing hinge that pivots freely and relies on a separate closer if the door has to return.
18) For a detention or high-security opening, is the Don-Jo HWBB74545 enough or do I need something else?
The Don-Jo HWBB74545 carries a non-removable pin as standard, which addresses pin removal on outswing doors in commercial settings. For detention-grade openings, the BEST BB855 is a heavy-duty steel double weight concealed ball bearing prison hinge, and the Hager 990 STEEL is a full surface prison hinge, 3 inch by 4 inch, with a welded tip and a heavy duty rating. Those are purpose-built for detention work; the Don-Jo is the commercial heavy weight hinge.
19) How does the Don-Jo HWBB74545 differ from the McKinney MP79 and MPB79?
All three are 5-knuckle full mortise style hinges. The McKinney MP79 and MPB79 MacPro hinges are both standard weight and carry a standard duty rating. The Don-Jo HWBB74545 is a heavy weight hinge in 0.18-gauge steel, ball bearing, built to ANSI A8111 for heavy doors and high-frequency commercial use. Match the weight class to the door leaf and the traffic the opening sees.
20) Is a 4 inch commercial ball bearing hinge an acceptable substitute?
Only if the frame is prepped for 4 inch. The Delaney CH401X is a 4 inch by 4 inch commercial ball bearing hinge with square corners, so it shares the bearing type and corner style with the Don-Jo HWBB74545 but sits a half inch shorter in the leaf. A 4-1/2 inch mortise will show a gap and the screw pattern will not line up, so size to the existing prep rather than the bearing type.
21) What finish does the Don-Jo HWBB74545 come in, and will it match my other door hardware?
Satin Chrome, BHMA 652, is the finish offered. That's the standard commercial plated-steel finish, so it lines up with satin chrome levers, closers, and exit device trim on the rest of the building. If your openings are done in 630 stainless or 613 oil-rubbed bronze, this hinge will read noticeably brighter.
22) Is the Don-Jo HWBB74545 made of steel or stainless, and will it hold up outdoors?
The base material is steel with a Satin Chrome plated finish for corrosion resistance. That's fine for interior openings and covered exteriors. For coastal or wash-down conditions where plating gets attacked, a non-ferrous hinge such as the McKinney T2314 is the type to look at instead.
23) Does this Don-Jo hinge self-close the door?
No. The HWBB74545 is a plain swinging ball bearing hinge and needs a separate closer if the opening has to latch itself. If you want closing action built into the hinge, a spring hinge such as the Stanley 2060R in 4-1/2 by 4-1/2 square corner covers the same prep.
How fast can I get the Don-Jo HWBB74545-652 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 Don-Jo HWBB74545-652 come with a warranty?
Absolutely. The Don-Jo HWBB74545-652 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 Don-Jo HWBB74545-652?
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