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75523 Dorma Pocket Pivot Hinge

Dorma 75523

75523 Dorma Pocket Pivot Hinge

Manufacturer: Dorma
Price: $401.40
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Dorma Pivot Set
75523 Pocket Pivot for 90º Pocket Door
  • Wood, Steel or aluminum Door And frames
  • Max. door width: 4'- 0"
  • Max. door weight:: 300 LB
  • DORMA pivots support door weight effectively in a variety of applications. Like all DORMA products, our pivots are available in an array of finishes to enhance and complement surrounding decor.
  • DORMA’s LM Series of pivots using brass and steel are designed for long life and trouble-free operation. Each pivot and pivot set meets DORMA’s exacting specifications for support of rated and non-rated high-traffic interior and exterior openings, extra-heavy doors, or lead-lined doors.
  • Pivots for 20 minute and 3 hour fire-rated doors comply with applicable codes.DORMA pivots span a wide variety of styles and applications that can interface with other DORMA products on wood, aluminum, or hollow metal doors and frames.
  • They can also be used on doors of special design such as paneled doors, and doors of unusual weight, thickness, or material.
  • Pivots and pivot sets, durable and long lasting, accommodate doors weighing up to 1000 lb.
  • Pivot sets are available for center hung, 3/4" offset, and 1-1/2" offset.
  • Components are offered for center hung, 3/4" offset, 1-1/2" offset, and pocket pivot applications.
  • Floor bearings with numerous spindle heights are available to accommodate an array of bottom door clearances.
  • Floor bearings are surface applied or grouted into the floor, depending on which pivot set/floor bearing is used.
  • Heavy-duty versions are available for doors up to 1000 lb.
  • Center hung pivots and pivot sets can be singleacting (must use an applied stop) or double-acting.
Technical Instruction

No. 75523 — Steel pocket pivot for 90º pocket doors, U.L. listed for 20 minute wood doors and 3 hour rated steel fire doors.

The recommended method for hanging a 90º pocket door is via the use of pocket pivots.Pocket pivots create optimum unobstructed space while creaying a flush appearance with the door in line with the frame.

  • The DORMA LM Series is listed by U.L. and C.U.L. under their continuing reinspection programs.
  • The LM Series is certified to the requirements of ANSI A156.4.
  • DORMA’s LM Pivot Series produced from brass or steel for interior and exterior non-rated and fire-rated doors.
  • Top pivots and bottom arms will be center hung, 3/4" or 1-1/2" offset.
  • Intermediate pivots will be 3/4" or 1-1/2" offset. Side jamb bottom pivot will be 3/4" offset.
  • Top and intermediate pivots will be full mortise configurations.
  • Bottom arms and side jamb pivot will be mortised.
  • Pivots can be substituted within a pivot set, assuming the offset is the same.
  • Offset 3/4" and 1-1/2" top pivots are available for doors that are inset 1/8" from the frame face while standard intermediate and bottom arms are templated accordingly.
  • Center hung pivots will accommodate double-acting and single-acting doors.
  • Center hung single-acting will use an applied stop.
  • Pocket pivots will accommodate doors opening 90º that must be flush with an adjacent wall.
  • All pivots and pivot sets will incorporate needle bearings and lubricated hardened steel pivot pins treated to prevent corrosion.
  • All pivots and pivot sets will be available in a variety of finishes.

Plated Finishes:

  • Primed for Painting: 600.
  • Brass: 605 (Bright) or 606 (Satin).
  • Bronze: 611 (Bright), 612 (Satin), or 613 (Oxidized Satin Oil Rubbed).
  • Nickel: 618 (Bright) or 619 (Satin).
  • Chrome: 625 (Bright) or 626 (Satin).

Sprayed Finishes:

  • Aluminum: 689.
  • Bronze: 691 (Dull), 690 (Statuary), or 695 (Dark Duranodic).
  • Gold: 696.
  • Black: 693.

Optional Special Color Sprayed Finishes:

  • Specify code number or submit 3 color chip samples.


  • 5 Years.
ANSI Conversion Chart
ANSI Number
ANSI Requirement/Function
DORMA Pivot Sets
DORMA Pivots
CO7011 Center Pivoted, 1000 lb Door max. CP1000
CO7021 Center Pivoted, 250 lb Door max. CP660
CO7032 Center Pivoted, 150 lb Door max. CP440, CPA440
CO7121 Offset Pivoted, 250 lb Door max. OPH750, OP1550
CO7131 Offset Pivoted, Side Jamb Bottom Pivot, 250 lb Door max OPJ350
CO7162 Offset Pivoted, 150 lb Door max. OP440, OPL440, OP15200
CO7172 Offset Pivoted, Side Jamb Bottom Pivot, 150 lb Door max. OPJ350
CO7202 Offset Pivoted, Labeled Fire Doors, 150 lb Door max. OPF440, OPLF440, OPF15200
CO7311 Offset Pivoted, Lead-Lined Intermediate Pivot 75240
CO7321 Offset Pivoted, Intermediate Pivot 75220, 15220
CO7371 Offset Pivoted, Intermediate Pivot, Labeled Fire Doors 75233, 15233
CO7382 Offset Pivoted, Full Mortise Intermediate Pivot (light-duty) 75210
Technical Details

  • Pivots standard design includes needle bearings with hardened pins for durability and long life.
  • 3/4" and 1-1/2" offset versions available for flush and 1/8" inset door and frame conditions. Flush versions are standard.
  • Pivot sets are available for non-rated, 20 minute rated, and up to 3 hour fire-rated application.
  • Intermediate pivots are recommended with offset pivot sets.
  • Pivot sets available for lead-lined doors weighing up to 800 lb. Can also be used on non lead-lined doors.
  • Lead-lined door pivots available for varying door thicknesses. The hole pattern in the pivots is staggered to straddle the lead in the center of the door.
  • Pocket pivots available for 90º pocket door applications that require the door to be flush with an adjacent wall.
  • Pivots and pivot sets furnished standard with all machine screws. Half or all wood screw options available.
Center Hung - Single or Double Acting
3/4" Offset Hung - Single Acting
1 - 1/2" Offset Hung - Single Acting
90º Pocket Pivot Hung
Pivot Set Selection Chart
Pivot Set
Maximum Door Width
Maximum Door Weight
Fire Rated
Center Hung Double-Acting
Offset Hung Single-Acting
OP440 3/4" offset standard
4' - 0"
440 lb
OPF440 3/4" offset, up to 3 hour fire rated
4' - 0"
440 lb
OPJ350 3/4" offset side jamb
4' - 0"
350 lb
OPH750 3/4" offset heavy-duty
4' - 0"
750 lb
3/4" offset heavy-duty , up to 3 hour fire rated
4' - 0"
750 lb
OPL440 3/4" offset lead-lined
4' - 0"
440 lb
OPL800 3/4" offset lead-lined
4' - 0"
800 lb
OP15200 1-1/2" Offset
3' - 6"
200 lb
OP15500 1-1/2" offset heavy-duty
4' - 0"
500 lb
OPF15200 1-1/2 offset, up to 3 hour fire rated
3' - 6"
200 lb
OPF15500 1-1/2" offset heavy-duty, up to 3 hour fire rated
4' - 0"
500 lb
CP440 Center Hung, Wood or Steel door
4' - 0"
440 lb
CPA440 center hung, aluminum door
4' - 0"
440 lb
CP660 center hung medium -duty, wood or steel door
4' - 0"
660 lb
CP1000 center hung heav -duty , wood or steel door
6' - 0"
1000 lb
Questions and Answers
Q: Hi, can you recommend a product for the following. Looking for pivot hing for wooden doors weighing 35lb. Not looking for the most expensive option. They only open in one direction (closet doors). No need for automatic/soft close. Mostly just looking for the pivots but your selection is quite something so not easy to tell. Thanks!.
A: Would a Pivot Knife Hinge like this work for your application as seen here:

Click Here

Please review and advise if we are headed in the right direction.

Q: Hello Richard, Thank you for your phone conversation this morning. Here are a few specs and pictures of the door that needs hinges. Total height to the point is 10'9" The hinge length is 79 3/4". The core is made of 2 layers of 3/4" plywood The door has a layer of tongue and groove pine and is a total of 3" thick. It has angle iron wrapped on the edges to keep it from racking. An estimated weight would be 200-250 pounds. We had it hanging but the top hinge began to bend. So, we are looking for other, better options.
A: Chris - I would replace all the hings with Soss 220 hinges as seen here:

Download File

or 5 - load bearing intermediate picots as seen here:

Click Here

Is there a follow up question that we can perhaps attempt to answer? We take deep pride in our technical expertise, as we know it separates us from our competition, so don't hesitate to ask.

Please reply to this email or contact our sales department here:

Click Here

if we can assist you by answering further questions or with entering this order and please let us know if there is anything else we can help with.

Q: I have a pocket door that has no header; the floor is concrete with radiant heat and can't be drilled. Is the pocket pivot my only option? It is out of my price range. Thank you.
A: Was the home very recently built?
Q: Just found you on YouTube. I want to change the type of opening of my wardrobe door. Right know it opens at 90degrees. I want the door to open 270degrees and offsetting 4inches. That green marked door. I would like it to be flush to the side wall. I will change the outlet and light switch to other place Can you help me? Images here::

View Image

View Image

A: This is very possible to do in fact it's guaranteed that it can be done so it will certainly prove impractical at the end however let's explore that first.

Please send me photographs of what hinge or pivot your doors currently hung on - please tell me the height of the wits and the thickness of the door and then tell me the depth of the wall indicated by your green outline on the wall that has the electrical running through it

Q: Thanks for your answer. Photo of current hinge is here:

View Image

Wardrobe door is 2,1 cm (0,83 inches) thick. Offset is 12cm (4,72 inches). Electrical wall depth 59cm (23,23 inches). Wardrobe door depth 50,8cm (20 inches) Do you need anything more? Also...you sent me a product of 300+ dollars... is that correct? I mean this is a wardrobe door, not thick, not heavy.

A: I have laid out your floor plan in autocad as seen here:

Click Here

I have done so as this process allows us to see very clearly what can be accomplished and how we must go about accomplishing the task.

Unfortunately as you will see in the above video we could not 100% accomplish the task because of the existing dimensions, we can see how close we can get to this requirement of 270° swing.

While we are physically close, the real obstacle would be the hinges themselves. Swing clear hinges with the required dimensions do not exist. And while they can be produced, custom cutting, welding etc, the cost would prove biggest obstacle.

Please feel free to review and follow up with any questions you might have.

Q: Thank you a lot for the awesome explanation and being able to visualize it.... I would like to buy an off the shelf product, although I could build my own hinge or whatever... I just don't want to push your kindness, but, what about a hinge in a hinge? Doesn't something like that exist? A double acting hinge or something similar could be adapted? First of all, I am on vacation, so I am sorry, but sand and phone are the tools I have I did a sketch here... wouldn’t something like this work:

View Image

A: Thank you for that impromptu sketch and I understand perfectly what you are looking to accomplish the issue though is if there was no hardware that can be pulled off the shelf to accomplish moving the door the way in which you would like to move it.

you could do is use a standard swing clear hinge and that would most definitely move the door out of the clear opening and would indeed allow you to rotate that door 180°. Simply referred to my original video and just imagine the door stopping at a hundred and eighty degree but then the hinge being a common hinge that could be pulled off the shelf such as the Cal-Royal BB350 US26D 3.5" x 3.5" Swing Clear Hinge-Full Mortise-Standard Weight-2-Ball Bearing-Square Corner-Satin Chrome as seen here:

Click Here

So you will still need to add that mounting block to the back side of the existing door because the panel is so thin.

Q: Good afternoon, I was hoping you might be able to help me and in turn I would obviously purchase the products from you. I have a interior residential opening 36.25" wide opening x 96.25" high and I need a pivot hinge that will swing both in and out, the thought is that it will be an integrated pantry door between cabinets. I am sure the cabinets will hold the strength of the door both on the floor and beneath the cabinet. I have a 36” door solid door slab that I will be installing false cabinet fronts onto the door, the door slab and the cabinets fronts applied make this weigh what I am assuming is over 60 lbs. Do you have a hinge that you would recommend for this application? Any help is appreciated. Feel free to reach out if you need additional information.
A: Please send me a sketch of your door.
Q: Please see the link here:

Download File

Door is set inside of 2 6” x 96” cabinet panels and I really don’t want the hinge to be mortised into those. Is there not something I can mount on floor and inside of top cabinet only?

A: Do you want this self centering or just manual operation?
(Required, used to email you once question is answered.)
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