Ives 3CB1HW Steel Heavy Weight...
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Ives 3CB1HW Steel Heavy Weight Concealed Bearing Full Mortise Hinge with 3 Knuckles

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Model: 3CB1HW 4.5x4.5 652
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Ives 3CB1HW Steel Heavy Weight Concealed Bearing Full Mortise Hinge with 3 Knuckles

Heavy-Duty Commercial Door Hinge Solution

The Ives 3CB1HW is a professional-grade steel full mortise hinge engineered for heavy weight doors over 150 pounds and high frequency usage up to 400 cycles per day. This 3-knuckle hinge features dual heavy duty concealed nylon bearings for smooth, reliable operation and is specifically recommended for use with door closers. Constructed from durable steel substrate with square corners, this hinge exceeds ANSI/BHMA A156.1 performance standards and includes fasteners for both hollow metal and wood door installations.

Professional Features & Benefits

  • Heavy-Duty Load Capacity: Engineered for doors over 150 pounds with robust steel construction for demanding commercial applications.
  • High-Frequency Performance: Rated for 400 cycles per day with dual concealed nylon bearings ensuring smooth operation under heavy use.
  • Dual Concealed Bearing System: Two heavy duty concealed nylon bearings provide superior durability and quiet operation compared to standard plain bearing hinges.
  • Door Closer Compatible: Specifically recommended for use with door closers, making it ideal for commercial applications requiring automatic door closing.
  • Complete Fastener Package: Includes 12-24 x 1/2" UFPHMS and 12 x 1 1/4" FPHWS fasteners for both hollow metal and wood door installations.
  • Extensive Customization Options: Available with hospital tip (HT), non-removable pin (NRP), security stud (SH), rounded corners (RC-1/4, RC-5/8), security fasteners (SEC), and electrification options (TW4, TW8, TW12, MON).
  • ANSI/BHMA Certified: Exceeds ANSI/BHMA A156.1 performance standards and meets A156.7 template hinge dimensions for code compliance.
  • UL Classified: UL Classified for windstorm rated assemblies (R37965) ensuring performance in extreme weather conditions.

Technical Specifications

  • ANSI/BHMA: ANSI/BHMA A156.1
  • Bearing Type: Concealed Bearing
  • Commercial/Residential: Commercial
  • Corner Style: Square Corners
  • Department: Door Hardware
  • Duty Level: Heavy Duty
  • Fasteners: Wood and Machine Screws
  • Knuckles: 3
  • Product Category: Door Hinges and Pivots
  • Product Function: Concealed Bearing
  • Product Group: Door Hinges and Pivots
  • Product Model: 3CB1HW
  • Product Subgroup: Full Mortise Hinges
  • Product Substrate: Steel
  • Product Type: Hinges
  • Subcategory: Hinges and Pivots

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 Ives Quality?

Ives architectural hinges deliver professional-grade reliability with steel construction and concealed bearing technology rated for high-frequency commercial use. Exceeding ANSI/BHMA A156.1 performance standards and UL classified for windstorm rated assemblies, this hinge provides the durability and consistent performance required for demanding commercial applications. Engineered for doors over 150 pounds with dual concealed nylon bearings, the 3CB1HW ensures smooth, quiet operation even under heavy daily use.

Product Specs

Subcategory:
Hinges and Pivots
Knuckles:
3
Duty Level:
Heavy Duty
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
Commercial/Residential:
Commercial
Bearing Type:
Concealed Bearing
Product Model:
3CB1HW
Product Function:
Concealed Bearing
Product Category:
Door Hinges and Pivots
Product Substrate:
Steel
Department:
Door Hardware

Ives 3CB1HW 4.5x4.5 652 – Frequently Asked Questions

1) Will the Ives 3CB1HW hold up on a heavy door with a closer on it?
That's exactly what the 3CB1HW is built for. It's a heavy weight steel full mortise hinge rated for doors over 150 pounds and traffic up to 400 cycles per day, and Ives specifically recommends it for openings with a door closer. The two concealed nylon bearings carry the load instead of a plain bearing, which is what keeps a closer-equipped door from sagging and dragging on the strike over time. On a high-traffic entry, corridor, or stairwell door with a closer, this is the correct weight class.
2) What size hinge do I order for a 3-0 x 7-0 commercial door, and what sizes does the 3CB1HW come in?
The 3CB1HW is made in four sizes: 4-1/2 x 4, 4-1/2 x 4-1/2, 5 x 4-1/2, and 5 x 5 inches. The first number is the hinge height, the second is the open width, and the width is what has to clear your trim and frame reveal. On a standard 1-3/4 inch commercial door up to 36 inches wide, 4-1/2 x 4-1/2 is the usual call. Go to a 5 inch height on doors wider than 36 inches or on unusually thick or heavy leaves, where the added leaf area spreads the load across more of the jamb.
3) Do I need to order screws separately for the Ives 3CB1HW, and will they work on a hollow metal frame?
Screws come with the hinge. Each one ships with both machine screws and wood screws, 12-24 x 1/2 inch undercut flat head machine screws for hollow metal and 12 x 1-1/4 inch flat head wood screws for wood doors and frames. That means one part number covers a hollow metal frame with a wood door, which is the common mixed condition in commercial work. Nothing else has to be added to the order to hang the door.
4) Will the Ives 3CB1HW drop into my existing door and frame hinge pockets?
It should, as long as the pocket is a square corner cutout in a matching size. The 3CB1HW meets ANSI/BHMA A156.7 template hinge dimensions, which means the screw hole pattern and leaf geometry match the standard template for that size, so a 4-1/2 x 4-1/2 hinge lands in an existing 4-1/2 x 4-1/2 square corner mortise without re-routing. Watch the corners: this hinge is square corner as standard. If your existing pockets are radiused, order the rounded corner option, either RC-1/4 or RC-5/8, to match the router bit that cut them.
5) How do I run power to an electric lock or exit device through the door using an Ives hinge?
Order the 3CB1HW with one of the electrification suffixes rather than adding a separate power transfer. TW4, TW8, and TW12 give you 4, 8, or 12 concealed conductors through the hinge, and MON adds door position monitoring. Pick the wire count by what the door leaf holds: 4 wires typically covers a single electric strike or electrified lock, 8 or 12 when you are also running a request-to-exit signal, latch monitoring, or a card reader on the door. Only one hinge in the set needs to be the electrified one; the rest of the set can be standard 3CB1HW in the same size and finish so everything matches.
6) How do I keep someone from pulling the pin on an out-swinging exterior door hinge?
Specify the 3CB1HW with NRP, the non-removable pin option, which adds a set screw in the barrel that is only reachable when the door is closed. On any out-swinging door where the barrel is on the exterior, that is the option to order. The SH security stud is the other approach: an interlocking stud and hole between the leaves that holds the door in the frame even if the pin is defeated. Both can be had on the same hinge, and adding SEC gives you tamper-resistant fasteners so the leaves cannot simply be unscrewed. If you would rather buy a pre-configured NRP hinge from another line, the Hager BB1168-NRP is a heavy duty full mortise ball bearing hinge supplied with a non-removable pin.
7) I need to replace a worn hinge on an apartment entry door. Is the Ives 3CB1HW the same thing that is on there now?
Only if the existing hinge is a commercial heavy weight unit. The 3CB1HW is a commercial hinge for doors over 150 pounds, and it is oversized for a typical interior apartment door on 3-1/2 x 3-1/2 residential hinges. Measure the existing hinge with the door open: if it is 3-1/2 x 3-1/2, this is not the replacement, and something like the Deltana DSB35 3-1/2 x 3-1/2 square hinge or the Schlage Residential S3P1010 3-pack is the size match. If the existing hinge measures 4-1/2 or 5 inches tall with square corners in a metal frame, the 3CB1HW is the right family, and you match the height, the open width, and the finish to what is already hung.
8) I need a hinge that resists tampering or attack on a detention or high security door - is a heavy weight commercial hinge enough?
For a detention opening the peers are purpose-built parts, not a standard commercial hinge. The BEST BB855 is a heavy-duty steel double weight concealed ball bearing prison hinge and the Stanley BB855 is a double weight prison hinge, 5 by 6, furnished with no holes and not swaged - so the holes are drilled to your frame. The Hager 990 STEEL is a full surface prison hinge, 3 x 4, with a welded tip. The Ives 3CB1HW addresses tampering at a lower level with non-removable pin (NRP), security stud (SH), and security fastener (SEC) options, which cover an out-swinging exterior door but are not the same as a detention hinge.
9) What is the closest heavy weight full mortise substitute for an Ives 3CB1HW hinge?
For a heavy weight full mortise steel hinge, the Don-Jo HWBB74545 and HWBB75045 are the nearest peers, both listed as heavy duty full mortise ball bearing hinges in 4-1/2 x 4-1/2 and 5 x 4-1/2 respectively, which line up with two of the four sizes the 3CB1HW is made in. The Hager BB1168-NRP is another heavy duty full mortise ball bearing option and comes with a non-removable pin as standard. The difference to confirm before you order is bearing style: the 3CB1HW uses concealed bearings inside a 3-knuckle barrel, while all three of those peers use ball bearings, which show as visible bearing races between the knuckles.
10) Which concealed bearing hinge should I use on a lighter interior door instead of a heavy weight one?
If the door is not over 150 pounds and is not carrying a closer, the Hager 920 is a full mortise concealed bearing hinge in a medium duty rating with 2-knuckle steel construction, so it keeps the clean concealed-bearing barrel look without the heavy weight leaf. The Ives 3CB1HW is a heavy duty commercial hinge built for doors over 150 pounds at up to 400 cycles per day, which is more hinge than a light interior door needs. Note the knuckle difference: the Hager 920 is 2-knuckle and the 3CB1HW is 3-knuckle, so the barrel appearance will not match on adjacent openings.
11) I need to run power through the door for an electric strike or electrified lock - what do I use instead of a standard heavy weight hinge?
A plain heavy weight hinge carries no conductors, so the wiring has to come from an electrified hinge. The BEST CECB179-12C is a steel full mortise concealed bearing electrified hinge with a 12-wire quick connect, in a medium duty rating. The Stanley CECB1900R54L is a three knuckle concealed bearing concealed conductor architectural hinge, steel full mortise, standard weight, 4-1/2 by 4-1/2, square corner, left-handed, 4-wire - so it is handed and must be ordered to match the door swing. Command Access also builds the ETH-CB70, a 3-knuckle standard weight energy transfer hinge on a steel base, and the ETH-BB68, a 5-knuckle heavy duty version. The Ives 3CB1HW itself is offered with TW4, TW8, TW12 and MON electrification options if you want to stay on the same hinge.
12) Are residential 3-1/2 inch hinges an acceptable substitute for a commercial heavy weight hinge?
They are a different class of hinge and will not carry the same opening. The Emtek 91013 is a residential plain bearing hinge pair at 3-1/2 x 3-1/2 with square corners in plated steel, and the Delaney RH35xx is a bulk steel residential interior hinge at 3-1/2 x 3-1/2 with a 5/8 inch radius corner. The Ives 3CB1HW is a commercial heavy duty concealed bearing hinge for doors over 150 pounds at up to 400 cycles per day, built to exceed ANSI/BHMA A156.1 and meet A156.7 template hinge dimensions, and its smallest size is 4-1/2 x 4 inches. Two things to check before swapping: the residential parts are 3-1/2 inch, so the existing mortise will not match, and the Delaney is a 5/8 inch radius corner where the 3CB1HW is square corner.
13) My existing hinges have radius corners - can I use a square corner heavy weight hinge?
Not without changing the prep. The Ives 3CB1HW is a square corner hinge as standard, though it is offered with rounded corner options RC-1/4 and RC-5/8. If the frame and door are already cut with radius corners, the matching peers are the Orca 4014, a 4 x 4 with 1/4 inch radius corners, or the Orca 3514 at 3-1/2 x 3-1/2 with 1/4 inch radius, both plain bearing medium duty commercial hinges. For 5/8 inch radius, the Delaney RH45xx is a 4 x 4 exterior residential hinge with a 5/8 inch radius. Measure the corner radius on the existing mortise before ordering, because a square hinge in a radius pocket leaves a gap at each corner.
14) I need a non-removable pin hinge for an out-swinging exterior door - what are my options?
The Ives 3CB1HW is offered with a non-removable pin (NRP) option, alongside security stud (SH) and security fasteners (SEC), on a heavy duty concealed bearing hinge. If you need NRP as standard on a ball bearing hinge, the Hager BB1168-NRP is a non-removable pin full mortise ball bearing heavy duty hinge. On the lighter side, the Deltana CSB45N is a 4-1/2 x 4-1/2 square hinge pair with a non-removable pin, and the Deltana DE44R5TA is a 4 x 4 with 5/8 inch radius security steel hinge pair. Confirm size and corner style against the existing prep before you swap, since the Deltana parts are 4-1/2 square and 4 x 4 radius respectively.
15) Does the Ives 3CB1HW need to be handed when I order it?
No. A full mortise butt hinge like the 3CB1HW is non-handed as a plain hinge, so one part number works on a left or right hand door. Handing only enters the picture if you specify an electrified option. The through-wire versions, TW4, TW8, TW12, and the MON monitor option, carry the wire through one specific leaf, so the hand of the opening has to be given when you order those.
16) What is the difference between a concealed bearing hinge like the Ives 3CB1HW and a standard ball bearing hinge?
Both carry the load on bearings rather than metal rubbing on metal, but the 3CB1HW's two nylon bearings sit inside the knuckles where you cannot see them, so the barrel reads as a clean 3-knuckle profile with no bearing races showing. A conventional ball bearing hinge such as the Don-Jo HWBB84545 in 4-1/2 x 4-1/2 exposes the bearing rings between knuckles. Functionally, pick concealed bearing when appearance matters on a visible opening or when you want quieter operation; pick a standard ball bearing hinge when looks are not a factor. Do not substitute a plain bearing hinge here. Plain bearing units like the Hager 920 or the Orca 4040 are medium duty and are not the equal of a heavy weight bearing hinge under a closer.
17) What hinge should I use on a behavioral health or psychiatric patient room door?
Order the 3CB1HW with the HT hospital tip option. A hospital tip is a sloped, wedge-shaped tip on the top and bottom of the barrel with no flat surface, so nothing can be looped or hung over it and nothing collects on it. That is the standard ask for behavioral health rooms, patient rooms, and holding areas. The base hinge is the same heavy weight concealed bearing unit rated for doors over 150 pounds and 400 cycles a day, which is the traffic level those doors see.
18) Can the Ives 3CB1HW be used on a windstorm rated door assembly?
Yes, the 3CB1HW is UL Classified for windstorm rated assemblies under file R37965. That matters for storm shelters, school safe rooms, and coastal openings where the whole assembly has to be listed, not just the door. Use it as the hinge in an assembly that calls for a classified component, and keep the size and count in line with what the assembly listing requires.
19) Does the Ives 3CB1HW meet ANSI/BHMA requirements for a spec job?
It does. The 3CB1HW is certified to ANSI/BHMA A156.1, the standard for butt hinges, and Ives states it exceeds those performance requirements. It also meets A156.7 template hinge dimensions, which is the dimensional standard specifiers reference so a hinge is interchangeable with any other template hinge of the same size. Between the two, an A156.1 heavy weight concealed bearing steel hinge with square corners is what a facility standard usually calls out for commercial openings.
20) Is a 3 knuckle hinge as strong as a 5 knuckle hinge?
For this application, yes. The 3CB1HW is a 3-knuckle heavy weight hinge carrying doors over 150 pounds at 400 cycles per day, which is a higher rating than many 5-knuckle standard weight hinges. Knuckle count is not a load rating on its own; the weight class and bearing type are. A 5-knuckle standard weight hinge such as the McKinney MP79 or the Stanley FBB191 in 4-1/2 x 4-1/2 is rated standard duty and is the lighter option, meant for doors that do not carry a closer or heavy traffic. Where you do want a 5-knuckle heavy duty unit with power transfer built in, the Command Access ETH-BB68 is a heavy duty 5-knuckle steel energy transfer hinge.
21) How many Ives 3CB1HW hinges do I need per door?
Hinges are sold individually, so count the openings and order accordingly. Three per leaf is the normal commercial count on a 7-foot door, and one more for every additional 30 inches of height, so a 8-foot door takes four. On an electrified opening, order the electrified hinge as one of the three and standard 3CB1HW for the other two in the same size and finish. Since the hinge is a heavy weight unit rated for doors over 150 pounds, do not drop to two per leaf to save on the count; the load is what the third hinge is there for.
22) I need the access control system to know when the door is open - is there a hinge that does that?
Yes, but it is a different hinge, not an option on a heavy weight mortise hinge. The Command Access ETM-CB70 is an energy transfer monitor hinge with door position sensing on a 3-knuckle steel base in a medium duty rating, and the ETM-BB68 is the heavy duty 5-knuckle version with an integrated door position switch. Both transfer power and report door position on the same hinge, so a separate door contact is not needed in the frame. If the opening only needs power transfer with no monitoring, the Command Access ETH-CB70 covers that in the same 3-knuckle standard weight form.
23) What is the difference between a concealed bearing hinge and a plain bearing commercial hinge for a door with a closer?
The Ives 3CB1HW carries two heavy duty concealed nylon bearings and is specifically recommended for use with door closers, rated to 400 cycles per day on doors over 150 pounds. Plain bearing commercial hinges such as the Orca Hardware 4040, a 4 x 4 square corner plain bearing commercial hinge in a medium duty rating, or the Orca 4014 in a 4 x 4 with 1/4 inch radius corners, have no bearing element between the knuckles. The Hager 1129 is a half mortise plain bearing commercial hinge in 4-1/2 standard weight steel, which is a different mortise prep entirely - it mortises into the door and surface-applies to the frame. Where a closer is driving the door on every cycle, the bearing hinge is the one built for that duty.
24) What do I use instead of a mortise hinge when the door has to swing both directions?
A full mortise hinge only swings one way, so a double acting opening needs a pivot. The BEST DAP-3 is a heavy duty double acting pivot for commercial interior doors. The BEST CB1969R is a concealed bearing heavy weight pivot-reinforced hinge in a heavy duty rating, which is a different thing - it is still a hinge, reinforced to work alongside a pivot set on a heavy door, not a substitute for one. The Ives 3CB1HW is a full mortise hinge and will not serve a double acting swing.
25) Can I use a standard weight 5-knuckle hinge in place of a heavy weight 3-knuckle one?
They are built for different loads. The Stanley FBB191 is a 5-knuckle full mortise standard weight hinge in 4.5 x 4.5, and the McKinney MP79 and MPB79 MacPro full mortise hinges are 5-knuckle standard weight in a standard duty rating. The Ives 3CB1HW is heavy duty with 3 knuckles, engineered for doors over 150 pounds at up to 400 cycles per day. Beyond the load rating, the visual difference is immediate: a 3-knuckle barrel next to a 5-knuckle barrel does not match, so on a corridor where the hinges are visible, keep the knuckle count consistent across the openings.
26) I want the door to self-close without adding a closer - what hinge does that?
That is a spring hinge, not a bearing hinge. The Stanley 2060R is a full mortise spring hinge with square corners in 4.5 x 4.5 on a ferrous steel base, in a heavy duty rating, and it matches the 4.5 x 4.5 size and square corner prep of the Ives 3CB1HW so the existing mortise carries over. The 3CB1HW has no closing mechanism of its own - it is a concealed bearing hinge recommended for use with a door closer, meaning it is built to take the cycling a closer puts on the door.
27) Which 4-1/2 by 4-1/2 square corner commercial hinge should I standardize on across a building?
At 4-1/2 x 4-1/2 square corner there are three commercial choices with different duty levels. The Ives 3CB1HW is the heavy duty concealed bearing option, 3-knuckle steel, for doors over 150 pounds at 400 cycles per day, and it is stocked in twelve finishes including 626 satin chrome, 630-class options such as 646 satin nickel, 652 satin chrome steel, 613-class 695 dark bronze, and 600 primed for painting. The Orca 3535 is a 4-1/2 x 4-1/2 square corner ball bearing commercial hinge in a medium duty rating. The Don-Jo HWBB74545 and HWBB84545 are heavy duty full mortise ball bearing hinges at 4-1/2 x 4-1/2 in satin chrome. For a mixed building, matching the finish across all openings is usually the constraint that decides it.
28) What is the difference between the Don-Jo HWBB85045 and a steel heavy weight hinge?
Substrate. The Don-Jo HWBB85045 is a heavy weight full mortise ball bearing hinge, 5 x 4-1/2, in brass with a satin chrome finish, while the Don-Jo HWBB75045 is the same 5 x 4-1/2 heavy weight ball bearing size in steel. The Ives 3CB1HW is a steel substrate hinge and is made in a 5 x 4-1/2 size as well. Brass and steel base metals behave differently in corrosive or coastal environments, so confirm which base metal the spec calls for before substituting one for the other.
29) Can I use a non-ferrous or decorative hinge on a heavy commercial door?
Those serve different openings. The McKinney T2314 is a non ferrous hinge, standard weight, 5 knuckle, in a medium duty rating - non ferrous base metal is chosen for corrosive or exterior exposure rather than for load. The McKinney SQ3331 is a square barrel 2-knuckle decorative hinge at 4-1/2 by 4-1/2 in a standard duty rating, specified for appearance. The Ives 3CB1HW is a heavy duty commercial hinge for doors over 150 pounds at 400 cycles per day. On a heavy door with a closer, the load rating is what governs, and neither the non ferrous nor the decorative part is rated for that duty.
30) Can I get the Ives 3CB1HW in a finish that matches my existing satin chrome or oil rubbed bronze hardware?
There are twelve finishes on the 3CB1HW: 600 primed for painting, 631 matte black, 632 bright brass, 633 satin brass, 639 satin bronze, 640 satin bronze dark, 641 oxidized bronze, 643E aged bronze, 646 satin nickel, 651 bright chrome, 652 satin chrome, and 695 dark bronze. If you are matching a building where the locks and closers are 626 satin chrome, 652 is the steel-base equivalent number and reads the same on the opening. For a painted hollow metal frame, 600 comes primed so it takes the same field paint as the frame. Order the whole set of hinges on an opening in one finish code so the barrels match.
How fast can I get the Ives 3CB1HW 4.5x4.5 652 delivered?
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Does the Ives 3CB1HW 4.5x4.5 652 come with a warranty?
Absolutely. The Ives 3CB1HW 4.5x4.5 652 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 Ives 3CB1HW 4.5x4.5 652?
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