Determining Axle Capacity of Trailer with 12 inch Hub Drums and 6 Lug Bolt Pattern
Updated 08/28/2018 | Published 08/27/2018
Question:
I’ve got an axle under my trailer with no markings. It is 2.75 diameter round tube, has 6x5.5 hubs and 12” trailer brakes. All my research is finding the tube just under the 5k-7k axles and that’s what every axle I’ve seen with 12” brakes are rated. The 3500 axles all have 10”. Im looking at having it loaded right about 4000lbs overall gvwr
asked by: Chris
Expert Reply:
Sounds like you should be fine if that's what you are asking. Based on the hubs you have on the trailer I'd imagine you have the higher rated axle you mentioned.
Typical Axle Diameters Based on Axle Capacity
- 1,000-lb - 2,000-lb Axles: 1-1/2 inch - 1-3/4 inch diameter
- 3,500-lb Axles: 2-3/8 inch diameter
- 6,000-lb - 7,200-lb Axles: 3 inch diameter
- 8,000-lb Axles: 3-1/2 inch diameter
- 9,000-lb Axles: 4 inch diameter
- 10,000-lb Or more axles: 5 inch diameter
Since you are at 2.75 inches in diameter you aren't going to fall under a standard capacity based on that alone, but your wheel bolt pattern and drum diameter dictates higher like 6k.
Product Page this Question was Asked From
Dexter Trailer Idler Hub Assembly for 6,000-lb Axles - 6 on 5-1/2
- Trailer Hubs and Drums
- Idler Hub
- Standard
- 25580 / 15123
- Standard Grade
- For 6000 lbs Axles
- 1/2 Inch Stud
- 6 on 5-1/2 Inch
- 16 Inch Wheel
- 16-1/2 Inch Wheel
- 17 Inch Wheel
- 17-1/2 Inch Wheel
- 18 Inch Wheel
- 18-1/2 Inch Wheel
- Dexter
more information >
Continue Researching
- Search Results: boat trailer winch
- Q&A: Determining Correct Replacement Brake Line Kit For 1989/1990 EZ Loader Boat Trailer
- Video: 2-Speed Boat Trailer Winch with 20' Strap and Brake Spec Review
- Video: 2-Speed Boat Trailer Winch with 20' Strap and Brake: The Breakdown
- Video: What to Know About the Yates Bow Roller for Boat Trailers
- Shop: Yates Bow Roller for Boat Trailers - TPR - 3" Long - 1/2" Shaft - Yellow
- Shop: CE Smith Bow Roller for Boat Trailers - PVC - 4" Long - 1/2" Shaft - Amber
- Shop: Yates Bow Roller for Boat Trailers - Heavy-Duty Rubber - 4" Long - 1/2" Shaft
- Shop: Yates Bow Roller for Boat Trailers - TPR - 4" Long - 1/2" Shaft - Yellow
- Shop: Yates Bow Roller for Boat Trailers - TPR - 4" Long - 1/2" Shaft - Blue
- Shop: CE Smith Bow Roller for Boat Trailers - Polyurethane - 3" Long - 1/2" Shaft
- Shop: Yates Bow Roller for Boat Trailers - Heavy-Duty Rubber - 3" Long - 1/2" Shaft
- Article: How to Tell the Weight Rating of a Trailer Axle
- Search Results: 8~201~9uc3~ez
- Search Results: k08~201~2g
- Search Results: fifth wheel jacks
- Article: Trailer Wiring Diagrams
- Q&A: Lug Nut Torque Chart for Trailer Wheels
- Shop: Trailer Hitch
- Search Results: trailer tires and wheels
- Article: How to Measure Your Trailer Wheel Bolt Pattern
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Shop: Trailer Wiring
- Search Results: trailer hitch
- Video: Measuring To Choose The Right Trailer Axle
- Q&A: Comparing Kenda KR03, KR35, And KR53 Tires
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Suspension Enhancement
- Video: Firestone Ride-Rite Air Bags with Easy Mount Compressor Feature Breakdown
- Search Results: trailer jack
on Trailer Hubs and Drums
