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Brake Mounting Flange for 3" Round Axle

Brake Mounting Flange for 3" Round Axle

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Redline 12 Inch Accessories and Parts - 4-44-1
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Redline Accessories and Parts

  • Trailer Brakes
  • Disc Brakes
  • Electric Drum Brakes
  • Hydraulic Drum Brakes
  • Hardware
  • Redline
  • Mounting Flange
  • 3 Inch Diameter Axle
  • 12 Inch


Features:

  • Brake size: 12" diameter assemblies
  • Bolt pattern: 5 on 3-7/8"
  • Fits 3" diameter axles (4,400 lb, 6,000 lb regular duty, 6,000 lb heavy duty, 7,000 lb and 7,200 lb axles)
    • Hole inner diameter: 2-3/4"
  • Weld-on design
  • Brake mount flange gets welded to the spindle at the end of the axle to provide a secure mounting place for brake assemblies

Dimensions of brake flange


4-44-1 Redline Brake Mounting Flange

Item # 4-44-1





Video of Brake Mounting Flange for 3" Round Axle

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Redline Trailer Brakes 4-44-1 Review

Today we're going to be taking a look at a brake mounting flange for a 3" round axle. The brake mounting flange gets welded to the spindle at the end of the axle to provide secure mounting plates for brake assemblies. This flange works with a 12" diameter brake assembly. It's going to come with the bolts already pressed in you can see that it's a five-bolt mount. The bolt pattern is 5 on 3-7/8", so that means that we have five bolts, and then from the center of this one to the center of this one, as well as this one to this one, it's going to measure 3-7/8". Center on center between these two is going to be 3". This is designed to fit 3" diameter axles. The bolt diameter is 3/8", so this will work with 4.400 lb, 6,000 lb regular duty, 6,000 lb heavy duty, 7,000 lb and 7,200 lb axles.

The diameter of the pilot hole, so the hole right here at the center, that's going to measure 2-3/4" in diameter. The flange itself is made from a durable steel construction, it's going to measure 1/4" thick. Taking a look at the overall measurements. Going side to side, it's going to measure about 4-1/2". Going this direction, that's going to give us a measurement of about 4-3/16". That's going to do it for today's look at the brake mounting flange for a 3" round axle.


Customer Reviews

Brake Mounting Flange for 3" Round Axle - 4-44-1

Average Customer Rating:  4.4 out of 5 stars   (27 Customer Reviews)


- 4-44-1
by:

This is an exelent flange if you want to convert an axel that is not allredy a breaking axel it worked great for me



- 4-44-1
by:

Works perfectly on my old trailer which had welded on backing plates. I scanned it and was able to build three more with the plasma cutter.



- 4-44-1
by:

High quality and well made. Made to fit the spindle of a 3" Axle. It fit, but the brakes would have been so far out on the axle that the hub would not even bolt on. Glad I checked before welding. Further investigation found that I have a shorter than average spindle length. THESE MOUNTING FLANGES WOULD NOT WORK FOR ME AND WERE RETURNED! Mobile home axles usually come in two "basic" sizes. The "smaller" size spindle, with the 1.9" grease seal and or 1-3/8" inner bearing (the larger spindle "usually" has a 2.25" grease seal and 1-3/4" inner bearing) If you have the Larger axle, with the 1-3/4" inner bearing and larger grease seal then this mounting flange should work. I had the 1.9" Grease Seal and therefore a shorter spindle length, so I had to weld the brake backing plate directly to the 3" axle tube. THESE MOUNTING FLANGES WOULD NOT WORK FOR ME AND WERE RETURNED! I put the brake assembly on the axle, reinstalled hub and bearings then tightened down. Next, put the brake assembly in the hub and adjust brakes tight to the drum while keeping both concentric. When both are tight together make sure brake adjusting holes are at bottom towards the ground and weld brake backing plate to the axle.



- 4-44-1
by:

It is a flange for a 3” round axle. It is to be welded onto the axle. Unfortunately, the inside diameter is ONLY 2.75 “. It will not fit directly onto the axle unless you do some serious grinding. It is possible that I do not know how it should be attached but....


Comments
Thank you for your review. The brake flange is designed to fit onto the spindle just behind the seals not on the 3 axle.
-- Etrailer Expert Heather A - 10/23/2020


- 4-44-1
by:

I've been restoring a 1979 Hudson trailer on which the brake backing plates were welded right to the axles. That makes rebuilding the brake system impossible unless you cut off the exiting material and install these flanges. This is pretty much the only way to do it. These flanges are stout -- 3/16" plate, laser cut for precision. If you install them properly you won't have to worry about the flanges failing. These brake flanges have to be absolutely square and concentric on the axle, and the0y need to be at the proper depth relative to the spindle. I think the best way to get it right is to dry-fit everything and then jig the flanges and the brake backing plates in position with magnets or a similar means. When everything is in alignment, tack weld the flanges to the axles, then take all the other parts off and finish your welds.



- 4-44-1
by:

I am putting on electric brakes on Mobile home axles and needed a way to mount the new backing plates. This seems to be the way to get it done. I had great help from Greg S on how to go about it.



- 4-44-1
by:

Careful if you get this product. I specified for a 3" tube. What I got was ID 2.754". Thankfully I have a lathe and was able to bore it out to size. Would be nice if the parts room checked the sizes before they send instead of grabbing what was on the shelf.


Comments
The part you received is correct. The flange is for use on 3 inch axles, but it does not mount to the axle.The spindles on 3 inch axles measure 2.75 on the shoulder where the flange should be welded. It should be mounted to the shoulder of the spindle right next to where the spindle is welded to the axle.
-- Etrailer Expert Patrick B - 11/28/2012


- 4-44-1
by:

All the parts I ordered have arrived as promised and worked as they should, I will order from etrailer again as needed.



- 4-44-1
by:

This produce was delivered in record time. It is exactly what was needed to complete my project and get me back on the road with little to no down time. Thanks to all the team members at etrailer for their help.



- 4-44-1
by:

Bolts like up perfectly. The center hole needs to be bored out to be used on mobile home axles. They can also be a challenge to weld square to the tube.



- 4-44-1
by:

Fast shipping and great parts


Comments
Great everything is working well,,,,
lee - 09/28/2014


- 4-44-1
by:

All the products I received are exactly what I needed, thanks a lot!



- 4-44-1
by:

Very easy ordering procedures. My order was shipped promptly and received with in one week. I will be ordering more in the future.



- 4-44-1
by:

the product arrived in very good condition and in speedy time. will order again from e-trailer.



- 4-44-1
by:

Just as advertised. Quick shipping and great price.



- 4-44-1
by:

Did the job, as it was pictured and described. Trailer is rolling again.



- 4-44-1
by:

Products arrived fast and fit as expected. Order more brake parts today.



- 4-44-1
by:

Worked great!!



- 4-44-1
by:

Great product and the people were great to deal with.


Comments
Great
Larry A - 08/26/2016



- 4-44-1
by:

awesome! great products received on tim e!



- 4-44-1
by:

Great service



- 4-44-1
by:



- 4-44-1
by:

great service, product, will do business with them again



- 4-44-1
by:

Great price and quality



- 4-44-1
by:


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Show More Reviews

Ask the Experts about this Redline Accessories and Parts

  • Do Electric Trailer Brakes With Parking Brake for 6k Axle Work on 7k Axle
    So long as you have a standard 5-bolt mounting flange on the axle such as the Brake Mounting Flange for 3" Round Axle # 4-44-1 you can use the 6,000 lb Dexter Electric Trailer Brake Kit with Parking Brakes # 23-112-113. You will also need to have a 12" diameter x 2" wide drum for the brakes to fit in, and if you have those things, you can use these 6k brakes. You will also need the Mounting Bolts and Hardware for 12" Brake Assemblies # BRKH12. As for the price, that really depends...
    view full answer...
  • Availability Of Brake Mounting Flange With 3" Inside Diameter
    We do have one brake flange that would work for your trailer that would allow you to use 12" brakes which is the Trailer Brake Mounting Flange # 4-50 which has an inside diameter of 3" and uses Dexter Electric Trailer Brake Kit - Self-Adjusting - 12" - Left Hand and Right Hand - 8K # K23-532-533-00. Keep in mind that brake mounting flanges need to be welded on by an axle shop as the flange needs to be perfectly square with the axle or you will have issues with the brakes wearing unevenly. I...
    view full answer...
  • How To Choose The Correct Brake Mounting Flange For Your Trailer Axle
    Absolutely, in order to install a 5 bolt brake mounting flange, you will need the Brake Mounting Flange for 3" Round Axle part # 4-44-1. This brake flange bracket is designed to work with an axle diameter of 3". If your axle is smaller than this, or you want a 4 hole mounting flange. You will need the Brake Mounting Flange part # 4-35 for a 2-3/8" axle and the Trailer Brake Mounting Flange part # 4-50 for 3-1/2" axle diameters. I recommend having a professional welder perform this...
    view full answer...
  • Parts Needed To Replace Warner Brakes On Trailer With Standard Brakes
    There is a way to replace the Warner Brakes on your trailer, but you will need to have a brake mounting flange welded to the axle by an axle shop as the flange needs to be perfectly parrallel to the axle. If your axle is 2-3/4" diameter you will need the # 4-35, or if your axle is 3" diameter you will need the # 4-44-1. You will also need to replace your current hub and drum assemblies, but to recommend the correct replacements I will need to know which inner and outer bearings your...
    view full answer...
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  • Bolt Pattern of 5 Bolt Brake Mounting Flange for Trailer Brakes
    The bolt pattern for a 5 bolt brake mounting flange, like # 4-44-1 is 5 on 3-7/8 inches. What that means is it measures 3-7/8 inches from one corner to its diagonal counterpart. From hole to hole across the bottom is 3 inches and between the others is about 2-1/8 inches. I've made a diagram that may help.
    view full answer...
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  • Where to Mount the Brake Mounting Flange 4-44-1
    I can see how that would throw you off. The Brake Mounting Flange for 3" Round Axle part # 4-44-1 is designed to mount onto the spindle just behind the seals it doesn't sit all the way inboard so it's not around the entire axle. I've included a picture to show you what I mean.
    view full answer...
    Image 1 for
  • Installation of Redline Brake Mounting Flange # 4-44-1
    On the Redline Brake Mounting Flange, part # 4-44-1, the five bolts are press fit into the flange. To be removed they would have to be pressed out with a hydraulic press. Once they are pressed out the bolts are not to be used again. So you would not want to remove the bolts from the flange. The flange needs to be welded on concentric and square. Square meaning the flange must be a true 90 degrees from the spindle and concentric meaning the gap around the spindle must be the same 360...
    view full answer...
  • Recommended Brake Mounting Flange To Welded On Brake Assemblies
    Thanks for the picture. Those assemblies look pretty rough and definitely need to be completely replaced, but are unlike anything I've seen. It looks like it was a custom job. I recommend removing them completely and having a professional welder add the Brake Mounting Flange for 3" Round Axle # 4-44-1 to your axle. This will need to be welded in place but will give you up to date braking assembly options that can be adjusted, and parts replaced as needed. I recommend the Electric Trailer...
    view full answer...
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  • Is Trailer Brake Mounting Flange part # 4-44-1 Sold Individually
    The Brake Mounting Flanges part # 4-44-1 that you referenced are sold individually. If you needed a pair you would need to order a quantity of 2. Be sure to have a qualified fabricator with experience in installing flanges install them.
    view full answer...
  • Dimensions of the Brake Mounting Flange # 4-44-1
    I went and pulled a Brake Mounting Flange # 4-44-1 from our warehouse to measure it for you and found that from the center of the studs to the inside edge of the center hole it measures 1/2 of an inch and then from the center of the top bolt down to the center of the hole it measures 2 inches.
    view full answer...
  • How to Determine the Capacity of 2 Inch Square Axle
    Square axles can be tough to determine capacity since the same spindle can typically fit a range of axle capacities. With this being said the absolute best way to determine the capacity of your axle is to locate a plate/sticker on the axle itself or on the trailer. If this is not available we can take a few steps to try and narrow it down for you. 1) A 2 inch square axle using a 5 on 3-7/8 inch brake mounting flange is typical of 5,200, 6,000, and 7,000 lb axles. If you can provide the...
    view full answer...
    Image 1 for
  • Is there a Brake Mounting Flange that Has a 3 Inch Diameter Center Hole
    We have a 4-bolt brake mounting flange # 4-50 which has an inner diameter of 3.01 inches. This particular flange is meant for 12-1/4 inch brake assemblies usually found on 8K axles which are usually 3-1/2 inches in diameter.
    view full answer...
  • Will 5 Hole Brake Backing Plate fit Mobile Home Axle
    Our 5 bolt mounting flange, # 4-44-1, will fit 3" round axles and fits with 12" brake assemblies like # 23-105 for the left side and # 23-106 for the right side. We recommend having brake mounting flanges installed by trailer building professionals, that have a jig to hold the brake mounting flange square and concentric to the spindle, for proper braking performance.
    view full answer...
  • Dimensions for a Brake Mounting Flange for a 3 Round Axle
    The measurements of the Brake Mounting Flange for a 3 inch Round Axle, part # 4-44-1, are correct, in that the inner diameter of the flange is 2-3/4 inches. This is because the flange will be mounted to the spindle, not the axle. You will need to check the Outside Diameter of your spindle, as this will mount on the spindle.
    view full answer...
  • Brake Flange Needed to Install 12 Inch Brake Assemblies With 5 Bolt Mounting Holes
    The brake flange that you referenced, # 4-44-1, can be welded on 3 inch axles. The brake flange will allow brake assemblies with a bolt pattern of 5 on 3-7/8 of an inch to be mounted. The brake flange will work with 7,000 and 7,200 lbs axles. If you are looking for brake assemblies to mount to the flanges, then I recommend the trailer brake assembly # AKEBRK-7L-SA left side and # AKEBRK-7R-SA right side. These brake assemblies will fit the 5 hole bolt pattern on the brake flanges....
    view full answer...
  • Parts Needed to Add Electric Drum Brakes to a Trailer with Tandem 5,200 lb Axles
    Thank you for the information. I will be able to use this to make sure you get the correct parts for your trailer. In order to add electric drum brakes you are going to need four brake mounting flanges, four braking assemblies, four hub/drums, a trailer wiring kit, a breakaway kit, and a brake controller. For the brake mounting flanges, I recommend the Brake Mounting Flange part # 4-44-1 which uses the standard five bolt brake mounting flange pattern and will fit a 3" diameter axle....
    view full answer...
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  • Is a Gap Between a Trailer Brake Backing Plate and Drum Normal
    The slight gap you see is normal. The drum is not supposed to make contact with the brake mounting plate. There are some instances when mixing brands of brakes, hubs, and axles, that won't line up properly but in this case it is normal. I did also run it by another set of eyes just to make sure and we both came to the same conclusion.
    view full answer...
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  • Converting to Electric Over Hydraulic Disc Brakes on 5,200 lb Axle
    Thanks for all of that excellent information, and we can put together the parts you need, as we have the exact brakes you are looking for, and just as a note you do need a 5-bolt brake mounting flange like # 4-44-1, so you will want to ensure this is what you have. If so, for the brakes I recommend: - Kodiak Disc Brake Kit - 12" Rotor - 6 on 5-1/2 - Stainless Steel - 5,200 lbs to 6,000 lbs # K2R526S Then for an actuator and breakaway battery combination I recommend the HydraStar Marine...
    view full answer...
  • Replacement Brake Assemblies that Use 5 Hole Round Brake Mounting Flange
    It sounds to me like your trailer uses a brake mounting flange like part # 4-44-1. This has a bolt pattern of 5 on 3-7/8 inch and is used with 3 inch axles. If this is the case you could use 12 Inch Nev-R-Adjust Electric Brake Assembly for 6,000 LB Axle, # 23-458 for left hand side and # 23-459 for right hand. I have attached a link to the other brake assembly options as well.
    view full answer...
  • Spindle, Brake Flange, Hub, & Electric Brakes For Custom 5,200 lb Axle
    We can get you all set up with the correct parts you need for your custom 5,200 lb axle, including the spindle, flange, hub, and electric brakes. Since you want to use electric brakes you'll need a hub and drum assembly, and it will need to be a 6 on 5-1/2" bolt pattern as there aren't any with a 5 on 4-1/2" bolt pattern for that capacity. Here is the list of everything you will need: - #42 Spindle for 5,200-lb to 7,000-lb Trailer Axles # TRU57FR - Trailer Hub and Drum Assembly -...
    view full answer...
  • Electric Brakes for 6,000 lb Axle With 16 Inch Wheels
    We do have electric brakes that are for a 6,000 lb axle and will work with 16 inch wheels. The only thing you need to make sure is that you have a 5-bolt brake mounting flange like part # 4-44-1, and that your hub's drum is 12 inches in diameter. Assuming you do have those things, you can choose from either manual-adjust brakes (which require Brake Adjustment Spoon # W80630) or self-adjusting brakes for the most convenience. The brakes that fit are the following: - Manual-Adjust:...
    view full answer...
  • Will Brake Assemblies AKEBRK-6L and # 23-106 Both Attach to Flange 4-44-1
    Both brake assemblies you mentioned will fit the mounting flange part # 4-44-1 that you referenced. Both assemblies are essentially the same thing made by two different companies. The part # AKEBRK-6L and # 23-106 are both 12 inch by 2 inch assemblies that mount to 5 bolt mounting flanges that are manual adjust.
    view full answer...
  • Recommended Nut and Washer for Use with the Brake Mounting Flange part # 4-44-1
    The recommended nut to use with the Brake Mounting Flange part # 4-44-1 that you referenced is the part # 38N and then for lock washers you would want the part # 38LW.
    view full answer...
  • Parts to Convert From Electric Brakes to Electric Over Hydraulic Disc Brakes on 6,000 lb Axle
    Thank you for all that detailed information, it is exactly what we need to get you set up with brakes so you can keep your family safe like you mentioned! You initially said you wanted to switch over from drum to disc brakes, but in your question you referenced an electric over hydraulic actuator and brake controller, so it sounds like you want to switch to electric over hydraulic (EoH) disc brakes for the best braking possible. To get this set up, you will need a new hub and rotor for...
    view full answer...
  • Will Brake Mounting Flanges be Installed on New Axle
    Whether the axles have the brake mount flanges on them will depend on what you purchased. However, since they're 6,000 pound axles it's fairly likely the flanges will be there. If not, we carry # 4-44-1 for 6,000 pound axles. It will need to be welded to the axle at a trailer shop because it needs to be perfectly square and concentric. As long as your current brake actuator is for disc brakes and functioning properly there's no need to replace it. However, if you previously had drum...
    view full answer...
  • Left and Right Hand Assemblies for 12 " Electric Trailer Brake Replacement
    I recommend the Electric Trailer Brake Kit - 12" - Left and Right Hand Assemblies item # AKEBRK-6. These are 12x2 inch drum brakes that are rated from 5,200 lbs to 7,000 lbs and will fit your 5 bolt pattern. The brake pads are made of durable friction material for improved braking and longevity and E-coated backing plates that resist rust. They fit 14-1/2" to 16-1/2" wheels. If you need hubs message me back with your lug nut bolt pattern and I would be glad to make a recommendation. I have...
    view full answer...
  • Brake Mounting Flange That Fits 2,000 lb Axle
    So we have brake mounting flanges, but they are all weld-on applications as opposed to bolt-on. Also, I did want to mention a 2,000 lb axle is typically 1-3/4 inches in diameter, and for that the correct part is the Brake Mounting Flange for 1-3/4" Round Trailer Axles - 2K # 4-34. That is a 4-bolt mounting flange, though we do have brake mounting flanges for 3 inch round axles, which are typically 5,200 lb to 7,000 lb axles. These are 5-bolt mounting flanges and for that the correct...
    view full answer...
  • Brake Mounting Flange Recommendation for a 1-1/4 inch Spindle on a 2006 Palomino Camper
    I believe I have what you need. Since you said you have a shaft size of 1-1/4 I am assuming you are referring to the spindle. The Brake Mounting Flange # 4-34 is designed to work on spindles that are 1-1/4 inches in diameter and should work for you. The description says that this flange works on 1-3/4 inch axles with 1-1/4 inch spindles. With this brake mounting flange you will need to use a 7 inch brake assembly. For a left hand brake assembly you could get a Dexter Brake Assembly...
    view full answer...
  • Parts Needed Electric Drum Brakes To 1996 Car Hauler With Tandem Axles
    I would be happy to recommend everything you will need to add electric trailer brakes and new taillights to your 1996 Tandem axle car trailer, but you will need to verify a few aspects of your trailer first. First things first you will want to make sure your axles currently have a brake mounting flange. This is located right behind the hub and will have 4 or 5 holes depending on the axle rating of your axles. If you do not have a brake mounting flange you will need to have one added...
    view full answer...
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