What to Look for on Armature Surface for Hub/Drum Replacement
Updated 03/02/2022 | Published 02/28/2022 >
Products Featured in This Question
Question:
When is the armature surface out of tolerance we have some drums that the back of the lugs are just a 1/16th or less from showing
asked by: Dan M
Expert Reply:
When it comes to checking the armature surface on your hub and drum assembly like the Dexter # 84556UC3 there is no specific measurement related to the back of the lugs that indicates wear. What you are looking for is grooves or discoloration and pitting. This would indicate that you need to replace your hub and drum assembly so your brake magnets work properly.
If you have a 3,500 lb axle with # L68149 inner and # L44649 outer bearings and need a 5 on 5 bolt pattern then the # 84556UC3 you looked at would be a great replacement option. If this is not the case I can help you find a replacement if you let me know what you currently have. I have also attached a link to all of our hub and drum assemblies for your reference.
Product Page this Question was Asked From
Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10" Diameter - 5 on 5
- Trailer Hubs and Drums
- Hub with Drum
- Standard
- L68149 / L44649
- Standard Grade
- For 3500 lbs Axles
- 5 on 5 Inch
- 13 Inch Wheel
- 14 Inch Wheel
- 14-1/2 Inch Wheel
- 15 Inch Wheel
- Dexter
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Video: Fastway Trailer Hitch Ball Cover with Tether Feature Review
- Video: Comprehensive Review: Fastway Trailer Hitch Ball Cover with Tether
- Search Results: trailer brakes
- Search Results: trailer ball cover
- Article: Testing Brake Controls
- Article: Trailer Wiring Diagrams
- Article: Testing Trailer Brake Magnets for Proper Function
- Video: Install: etrailer Electric Trailer Brakes on a 2019 Grand Design Reflection 150 Fifth Wheel
- Video: etrailer VS Dexter Self Adjusting Brakes Comparison
- Shop: etrailer Rust-Resistant Electric Trailer Brakes - Dacromet - 12" - Left/Right Hand - 5.2K to 7K
- Shop: Fastway Trailer Hitch Ball Cover with Tether - 2" Ball
- Shop: Dexter Nev-R-Adjust Electric Trailer Brakes - 12" - Left/Right Hand Assemblies - 6K
- Shop: Fastway Trailer Hitch Ball Cover with Tether - 2-5/16" Ball
- Q&A: Compatibility of Hopkins 7-Way # HM47210 With # 41157 Gooseneck/Fifth Wheel Wiring Harness
- Q&A: Running Accessories from Trailer Battery and Generator
- Q&A: Testing a Vehicle Side 7-Way Trailer Connector for Proper Function
- Q&A: Bolt Torque Specification for Mounting a 12 Inch Brake Assembly
- Q&A: How to Test Electric Trailer Brake Magnets to Determine if They Need to be Replaced
- Q&A: Do Brake Magnets Need To Sit Perfectly Flat on Inside Armature Surface of Brake Drums
- Q&A: How Much Grease Should I Use on The Spindle With 50MM Nev-R-Lube Bearing
- Shop: Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 12" - Right Hand - 6,000 lbs
- Shop: etrailer Electric Trailer Brakes - Self-Adjusting - 12" - Left/Right Hand - 5.2K to 7K
- Shop: Trailer Hitch
- Shop: Curt Powered Tail Light Converter with 4-Pole Flat Trailer Connector
- Search Results: trailer hitch
- Video: Firestone Ride-Rite Air Bags with Easy Mount Compressor Feature Breakdown
- Search Results: trailer tires and wheels
- Shop: Trailer Wiring
- Video: How to Choose a Trailer Brake Controller
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)


