How to Determine Capacity of Trailer Axle with 8 Lug Wheels
Question:
How do I determine the weight capacity on a boat trailer? It’s a dual axle, 8 lug, with 16” wheels. Not sure of axle diameter, as I’m not sure if it’s asking for the measurement for the outside diameter of the axle casing or not. Just want to make sure this trailer can handle my boat.
asked by: Chris O
Expert Reply:
If the trailer has 8 lug hubs that would indicate typically that the capacity for each axle is at least 5,200 lbs. Now if you go out and measure the outside diameter of the axle you'll get an even better idea.
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
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
- 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 >
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