Hub and Drum Assemblies and Spindles for Dexter Electric Trailer Brakes 23-112  

Question:

Expert Reply:

The brake assembly # 23-112 is rated for 6,000 pound axles, not 3,500 pound axles. For a 3,500 pound axle you will need to look at 10x2-1/4 inch brakes such as # 23-26 for the left side and # 23-27 for the right side. These mount to a 4-bolt flange, such as # 4-34 for 1-3/4 inch round axles, or # 4-35 for 2-3/8 inch round axles.

Brake mounting flanges need to be installed by a qualified professional with experience welding on brake flanges because it is a precision job requiring special equipment. Please note that none of the properly sized brakes for a 3,500 pound axle have a parking brake option like the Dexter # 23-112.

For spindles you would use 2 of # TRU84FR rated for 1,750 pounds each for a 3,500 pound axle. Then you could use any of the 3,500 pound axle hub/drum assemblies I have linked at the bottom of the page. There are several options depending on the bolt pattern needed to mount the wheels.

For 6K axles, we have numerous hub/drum assemblies rated for 6,000 pound axles just like brake assembly # 23-112. There are different options depending on the bolt pattern you need to mount the wheels to the hub. What I did was include a link to all of he hub/drum assemblies for 6,000 pound axles.

For a 6K spindle, you will need a #42 spindle for 5,200 lbs to 7,000 lb axles, part # TRU37FR. With it you could use hub and drum assembly # 42866UC3-EZ or # 8-219-4UC3-EZ both with 8 on 6-1/2 bolt pattern. When using this set-up with your Dexter brake assemblies would limit the maximum capacity 6K lbs, provided the axle is rated that high.

If you do have a 7K lb axle, you could use part # AKEBRK-7-SA for a set of self-adjusting brakes along with the #42 spindle and hubs mentioned above to get the full 7K capacity.

expert reply by: Michael H

0