Axle Weight Capacity for a Trailer Using 31.75mm and 27mm Bearings

Question:

Twin axle trailer inner 31.75mm outer27mm hub nutt 3/4what might the rating be

asked by: B L

Expert Reply:

We do not have any hubs that take a 31.75mm inner bearing and 27mm outer bearing so we will have to figure it out another way.

If you have a round axle you can measure the diameter of the axle.

Typical Axle Diameters Based on Axle Capacity:
1,000-lb - 2,000-lb Axles: 1-1/2" - 1-3/4" diameter
3,500-lb Axles: 2-3/8" diameter (Can have a 3-1/2" diameter, but rarely)
6,000-lb - 7,200-lb Axles: 3" diameter
8,000-lb Axles: 3-1/2" diameter
9,000-lb Axles: 4" diameter
10,000-lb Or more axles: 5" diameter

If you do not have a round axle then look for any markings on the axle or a sticker or plate somewhere on the trailer frame that ljists the capacities.