Can Hydraulic Trailer Brake Drums be Used with Electric Brakes
Published 03/03/2015 >
Question:
I have a question. I have a Kar Kaddy, can I reuse the drums when changing to electric brakes. On the inside of the drums is a ridge 7/8 wide 3/16 deep 1 to center of ridge from the drum inside 1 5/16 from center of ridge to center of wheel studs. It seems to me that the more flat area you have in the drum for the magnet to grab the better. what do you people have to say on the matter. I sent you a message last night, maybe you can put them both together.
asked by: John H
Expert Reply:
Some drums can be used with hydraulic or electric brakes and others cannot. You would have to check with the drum manufacturer unless it specifically says on the drum somewhere.
You mentioned a ridge which would indicate to me that you may not be able to use electric brakes with the hubs you have. The magnet does need a flat surface to attach to. This is called the armature surface. The less surface area there is on the armature surface the weaker the connection between the magnet and drum when the magnet is energized.
To determine which drums will fit your trailer I would need to know the inner and outer bearing numbers on the sides of the bearings.
Product Page this Question was Asked From
Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 12" - Left Hand - 6,000 lbs
- Accessories and Parts
- Trailer Brakes
- Electric Drum Brakes
- LH
- 6000 lbs
- Brake Assembly
- Self Adjust
- 12 x 2 Inch Drum
- Dexter
more information >
Continue Researching
- Shop: etrailer Hydraulic Trailer Brakes - Uni-Servo - Dacromet - 10" - Left/Right - 3.5K
- Q&A: Replacement Hub & Drum For UFP HD-1377-10 & Hydraulic Brakes For Boat Trailer
- Video: Checking Out the Mounting Panel for Redarc Tow-Pro Trailer Brake Controller Control Knob
- Shop: Trailer Hub and Drum Assembly - 2K Axles - 7" Diameter - 5 on 4-1/2 - L44643 - Pre-Greased
- Shop: Brake Controller
- Shop: Trailer Hub and Drum Assembly - 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 - Galvanized
- Shop: Timbren Rear Suspension Enhancement System
- Shop: Trailer Hub and Drum Assembly - 3,500-lb Axles - 10" Diameter - 5 on 5 - Pre-Greased
- Shop: Trailer Hub and Drum Assembly - 3,500-lb Axles - 10" Diameter - 5 on 4-3/4 - Pre-Greased
- Shop: Trailer Hub and Drum Assembly - 3,500-lb Axles - 10" Diameter - 5 on 4-1/2 - Pre-Greased
- Video: Firestone Ride-Rite Air Bags with Easy Mount Compressor Feature Breakdown
- Search Results: trailer tires and wheels
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Trailer Wiring Diagrams
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Search Results: trailer hitch
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Video: How to Choose a Trailer Brake Controller
- Shop: Trailer Wiring
- Article: How to Measure for Trailer Hitch Drop
- Search Results: trailer brakes
- Video: Redarc Tow-Pro Liberty Brake Controller Review RED24FR
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Q&A: Installation Time for Blue Ox BX1128 Flat Tow Base Plate Kit for 2016 Jeep Grand Cherokee
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Video: One Year Later | Firestone Airide Helper Springs and Heavy Duty Air Compressor
- Search Results: trailer hubs and drums
- Search Results: brake controller
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Q&A: Best Suspension Upgrade for 33" Tandem Axles: Road Armor vs Dexter EZ Flex for Ember 22ETS

