Don-Jo PB74540 Full Mortise Pl...
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$20.30
$17.83

Don-Jo PB74540 Full Mortise Plain Bearing Hinge 4-1/2" x 4" Satin Chrome for Medium Weight Doors

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Model: PB74540-652
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$20.30
$17.83
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Don-Jo PB74540 Full Mortise Plain Bearing Hinge 4-1/2" x 4" in Satin Chrome for Medium Weight Doors

The Don-Jo PB74540 is a full mortise plain bearing hinge measuring 4-1/2" x 4" and finished in Satin Chrome (652), engineered for medium weight doors in standard-duty commercial applications. Constructed from steel with a 0.134 gauge thickness and featuring a 5-knuckle design, this hinge meets ANSI A8133 template standards for reliable, consistent installation. A non-removable pin (NRP) option is available by specifying NRP as a prefix, providing added security where required.

Key Features

  • Precise Dimensions: 4-1/2" x 4" full mortise profile sized for standard commercial door applications requiring accurate template fit.
  • Steel Construction: Manufactured from steel at 0.134 gauge for dependable strength and durability in standard-duty commercial environments.
  • 5-Knuckle Design: Five-knuckle configuration provides smooth, stable operation and even load distribution across the hinge barrel.
  • Medium Weight Door Compatibility: Specifically rated for medium weight doors in low-frequency use applications, ensuring appropriate performance for the intended duty level.
  • ANSI A8133 Template Compliance: Conforms to ANSI A8133 template standards for straightforward, accurate installation with compatible door and frame preparations.
  • Satin Chrome Finish (652): Satin Chrome finish delivers a clean, professional aesthetic suited to a wide range of commercial interior environments.
  • Non-Removable Pin Option: NRP (non-removable pin) variant available by specifying NRP as a prefix for enhanced security on outswing doors.
  • Convenient Shelf Pack: Available in shelf packs of 24 for efficient stocking and project-quantity purchasing.

Certifications & Compliance

  • ANSI A8133 Template Compliant
  • Standard Duty — Commercial Grade

Technical Specifications

  • Product Group: Door Hinges and Pivots
  • Product Subgroup: Full Mortise Hinges
  • Product Type: Hinges
  • Subcategory: Hinges
  • Commercial/Residential: Commercial
  • Duty Level: Standard Duty
  • Knuckles: 5
  • Product Size: 4.5" x 4"
  • 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 PB74540?

Don-Jo PB74540 full mortise plain bearing hinges are built from steel at 0.134 gauge with a 5-knuckle barrel, delivering consistent, reliable performance in standard-duty commercial door applications. Engineered to ANSI A8133 template standards and rated for medium weight, low-frequency doors, the PB74540 provides the precision and durability that commercial door hardware professionals depend on.

Manufacturer Resources

Product Specs

Product Group:
Door Hinges and Pivots
Product Subgroup:
Full Mortise Hinges
Product Type:
Full Mortise Hinges
Subcategory:
Hinges
Bearing Type:
Plain Bearing
Commercial/Residential:
Commercial
Duty Level:
Standard Duty
Knuckles:
5
Product Model:
PB74540
Product Function:
Plain Bearing
Product Size:
4.5" x 4"
Product Category:
Door Hinges and Pivots
Product Substrate:
Steel
Department:
Door Hardware

Don-Jo PB74540-652 – Frequently Asked Questions

1) Is a plain bearing hinge like the Don-Jo PB74540 okay for a high traffic door, or do I need ball bearing?
Plain bearing is the wrong choice for high traffic. The PB74540 is rated for medium weight doors in low-frequency use, standard duty commercial. On an entry, a stairwell, a restroom or anything with a closer on it, step up to a bearing hinge such as the Orca Hardware 3535 Series 4-1/2 x 4-1/2 square corner ball bearing commercial hinge, or the Hager BB1168 heavy duty full mortise ball bearing hinge for heavy doors. Keep the plain bearing on office doors, closets and low-use interior openings.
2) Will the Don-Jo PB74540 drop into my existing 4-1/2 inch hinge prep?
The PB74540 measures 4-1/2 x 4 inches and is made to ANSI A8133 template, so it lands in a standard templated commercial door and frame prep of that size. Watch the leaf width: 4-1/2 x 4 is narrower than the common 4-1/2 x 4-1/2. If the door and jamb are routed for a 4-1/2 square hinge, the screw pattern will line up on the barrel axis but you will see an exposed edge of the old mortise on the leaf side.
3) What non-removable pin hinge can I use instead of the Don-Jo PB74540 on an outswing exterior door?
The Don-Jo PB74540 offers an NRP option by specifying NRP as a prefix. If you want a bearing hinge instead, the Hager BB1168 is a non-removable pin full mortise ball bearing hinge rated heavy duty. For a security-pinned option in a smaller leaf, the Deltana CSB45N is a 4-1/2 inch by 4-1/2 inch square hinge pair 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, sold in pairs.
4) I need a plain bearing hinge in a smaller leaf size than the Don-Jo PB74540 - what are my options?
For a smaller commercial leaf, the Orca Hardware 4040 Series is a 4 inch by 4 inch square corner plain bearing commercial hinge, the 4014 Series is the same 4 inch by 4 inch with a 1/4 inch radius corner, and the 3514 Series is a 3-1/2 inch by 3-1/2 inch plain bearing commercial hinge with a 1/4 inch radius corner - all rated medium duty. The Don-Jo PB74540 measures 4-1/2 inch by 4 inch, so these are the choices when the existing mortise is cut for a smaller hinge.
5) I need to run power through the door - is there a version of the Don-Jo PB74540 that does that?
Power transfer requires a purpose-built electrified hinge, not a standard plain bearing hinge. The Command Access ETH-CB70 is a 3-knuckle standard weight energy transfer hinge on a steel base rated medium duty, and the BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect, also medium duty. If you also need door position monitoring, the Command Access ETM-CB70 adds door position sensing on a 3-knuckle steel base. The Don-Jo PB74540 is a mechanical plain bearing hinge with no wiring provision.
6) What is the closest equivalent to the Don-Jo PB74540 in a 5-knuckle standard weight full mortise hinge from another brand?
The McKinney MP79 MacPro is the nearest match in configuration. Like the Don-Jo PB74540, it is a full mortise hinge with a 5-knuckle barrel rated standard weight, so it covers the same medium weight, standard-duty commercial openings. The McKinney MPB79 MacPro is also a 5-knuckle standard weight hinge in the same family. The PB74540 itself is a plain bearing hinge in steel at 4-1/2 inch by 4 inch; confirm the leaf size you need matches before swapping, since hinge size must match the existing door and frame prep.
7) My door gets constant traffic - what should I use instead of a plain bearing hinge like the Don-Jo PB74540?
For high-frequency openings, step up to a bearing hinge. The Hager BB1168 is a full mortise ball bearing hinge rated heavy duty and comes with a non-removable pin, and the Ives 3CB1HW is a steel heavy weight concealed bearing full mortise hinge with 3 knuckles. The Stanley FBB191 in 4-1/2 inch by 4-1/2 inch is a 5-knuckle full mortise hinge rated heavy duty. The Don-Jo PB74540 is a plain bearing hinge specified for medium weight, low-frequency doors, so a bearing model is the right call on an entrance or a heavily cycled corridor door.
8) What is the Don-Jo PB74540 made of and how thick is the leaf?
Steel, 0.134 inch gauge, with a five-knuckle barrel. That gauge and knuckle count is standard weight commercial territory, which is why it is rated for medium weight doors rather than a heavy solid core or a mineral core fire door.
9) What hinge should I specify instead of the Don-Jo PB74540 for a detention or correctional opening?
Standard-duty commercial hinges are not intended for detention use. The BEST BB855 is a heavy-duty steel double weight concealed ball bearing prison hinge from the detention hardware line, and the Stanley BB855 is a double weight prison hinge at 5 inch by 6 inch furnished with no holes and not swaged for custom fabrication. The Hager 990 STEEL is a full surface prison hinge at 3 inch by 4 inch with a welded tip. The Don-Jo PB74540 is a standard-duty plain bearing hinge for medium weight doors.
10) Is the Ives 3CB1 a substitute for the Don-Jo PB74540?
They serve similar openings but are built differently. The Ives 3CB1 is a 3-knuckle concealed bearing full mortise hinge rated medium duty, while the Don-Jo PB74540 is a 5-knuckle plain bearing full mortise hinge. Concealed bearing places bearings inside the barrel rather than relying on plain knuckle-to-knuckle contact, and the barrel appearance differs between a 3-knuckle and a 5-knuckle hinge - worth noting if the other doors in the building are already outfitted one way.
11) Can I use the Emtek 91013 plain bearing hinge on the same doors as the Don-Jo PB74540?
Not interchangeably. The Emtek 91013 is a residential duty plain bearing hinge sold in pairs, 3-1/2 inch by 3-1/2 inch with square corners in plated steel. The Don-Jo PB74540 is a commercial hinge at 4-1/2 inch by 4 inch. Emtek's 92013 is the heavy duty version of the same 3-1/2 inch by 3-1/2 inch plain bearing hinge if you want a sturdier interior residential option, but neither matches the PB74540 leaf size or commercial application.
12) Does the Don-Jo PB74540 self-close the door, or do I need a different hinge for that?
The PB74540 is a plain bearing hinge and does not provide closing force. For a self-closing opening, the Stanley 2060R in 4-1/2 inch by 4-1/2 inch is a full mortise spring hinge with square corners on a ferrous steel base, rated heavy duty. For a door that swings both directions, the BEST DAP-3 is a heavy duty double acting pivot for commercial interior doors. Both are different mounting and prep than a standard full mortise leaf hinge.
13) What ball bearing hinge is the same 4-1/2 inch size class as the Don-Jo PB74540?
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, and the Delaney CH401X is a 4 inch by 4 inch commercial ball bearing hinge with square corners. The Don-Jo PB74540 is 4-1/2 inch by 4 inch, so the second leaf dimension differs on both - check the frame rabbet and door thickness before ordering, since leaf width affects how the door clears the trim.
14) Is there a non-ferrous alternative to the steel Don-Jo PB74540 for a damp or coastal opening?
The McKinney T2314 is a non-ferrous hinge in standard weight with a 5-knuckle barrel, rated medium duty, which puts it in the same barrel configuration as the Don-Jo PB74540. The PB74540 is built from steel, so for pool rooms, coastal exteriors, or wash-down areas the non-ferrous base material is the relevant difference.
15) What finish does the Don-Jo PB74540 come in, and will it match my other door hardware?
One finish: 652 Satin Chrome. That is the BHMA number that pairs with satin chrome levers, closers and exit trim, and it reads as a close visual match to 626 satin chrome brass hardware on the same opening.
16) How many Don-Jo PB74540 hinges do I need per door, and how are they packed?
Standard practice on a commercial 7 foot door is three hinges per leaf, two on shorter doors. The PB74540 ships in shelf packs of 24, which covers eight three-hinge doors per pack, so it is easy to buy by the opening count on a multi-door project.
17) Is the Don-Jo PB74540 a commercial hinge or a residential one?
Commercial, standard duty. It is specified for office buildings, schools, healthcare, retail, warehouse, multi-tenant residential and municipal work. If the job is single-family residential interior, a pair-packed residential hinge like the Delaney 3-1/2 x 3-1/2 interior hinges or the Emtek 91013 residential plain bearing pair is the closer fit.
18) Will the Hager 920 work where I would otherwise specify the Don-Jo PB74540?
Only if the barrel style suits you. The Hager 920 is a full mortise concealed plain bearing hinge in steel with a 2-knuckle configuration, rated medium duty. The Don-Jo PB74540 is full mortise as well but uses a 5-knuckle barrel with plain bearing construction. A 2-knuckle barrel reads very differently on the door face, so if you are matching existing 5-knuckle hinges elsewhere in the building the Hager 920 will stand out.
19) I want a decorative barrel instead of the standard look of the Don-Jo PB74540 - what is available in the same size class?
The McKinney SQ3331 is a square barrel 2-knuckle decorative hinge measuring 4-1/2 inch by 4-1/2 inch, rated standard duty, which shares the standard-duty rating of the Don-Jo PB74540 but presents a squared barrel rather than a conventional rounded 5-knuckle barrel. The PB74540 is 4-1/2 inch by 4 inch with a 5-knuckle plain bearing barrel.
How fast can I get the Don-Jo PB74540-652 delivered?
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Can I return it if it doesn’t work for me?
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Does the Don-Jo PB74540-652 come with a warranty?
Absolutely. The Don-Jo PB74540-652 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 PB74540-652?
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