How to Estimate Axle Weight Rating Based on Bearings Used in Hubs  

A 3,500 lb rated axle hub would have the weight rating of 1,750 lbs per hub. The highest rated hubs we offer with a 5 on 4-1/2 inch bolt pattern are 3,500 lb hubs like the part #AKIHUB-545-35-K.

Although hubs that have a black powder coat finish, like the Trailer Idler Hub Assembly #AKIHUB-545-35-EZ-K that you purchased, will not last as long against saltwater as one with a galvanized finish, like the Kodiak Trailer Hub #Q-HUB84545, you…

It sounds like you have inner and outer bearings #L68149 and #L44649 respectively. That's a very popular combination on a #84 spindle but the seals are normally 1.719 inches inner diameter. I would verify that number. If this is correct…

The Dexter Trailer Idler Hub Assembly for 3,500-lb E-Z Lube Axles part #84545UC1-EZ is for a single hub. You may consider the CE Smith Trailer Hub Assembly w/ Carrying Case for 3,500-lb Axles part #CE13511 this is the same type hub with a slightly…

A trailer's weight carrying capacity is a function of all the parts used to construct it. These include the trailer's frame, axle, suspension, hubs, wheels and tires. Each of these individual components will have its own weight…

The correct trailer idler hub for your boat trailer is the Trailer Idler Hub Assembly for 3,500-lb Axles part #AKIHUB-545-35-K or part #AKIHUB-545-35-EZ-K if you have zerk fittings on the spindle. These are both pre-greased so there is no mess to…

If you look at the outermost part of the spindle on your axle there will be what is called a grease zerk or grease gun fitting. It will look like a tiny round ball which is where you can attach a grease gun to grease your spindle. If your spindle has…

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are marked…

A BT8 spindle would have a diameter of .99 of an inch where the bearings would both install and would have a diameter of 1.24 where the great seal would ride. That would require a hub part #AKIHUB-440-2-1K for an idler hub. A BTR spindle would have…