The old idler hub's worn out and you're tired of all the play in your wheel. You pull it off, slide the new one on, and everything fits like it should. Bearings are packed and you're rolling straight without a second thought.
The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.
On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: 8 on 6-1/2 means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)
To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: 5 on 4-1/2 means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)
Measuring the distance (D) from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, everyone. Steve here with etrailer.com. Today, we're looking together at our Terran Axle trailer idler hub assembly for 5,200 to 6,000 -pound axles, and it's a 6 lug on 4 1/2 inch lug pattern. So folks, again, a complete hub kit like this is gonna give you included pre-matched inner and outer bearings, the grease seal and dust cap with the plug if you have an EZ Lube or an etrailer Easy Grease trailer axle or spindle. And as you can see, the grease seal and inner bearing are already pre-installed and greased. So, before you install the outer bearing, you wanna make sure you grease that up and everything and then put your cap on after you've got everything on the castle nut, cotter pin and whatnot.
And then, of course, your lug nuts for all the studs. So again, 6 on 5 1/2 inch bolt pattern. It fits common wheels used on utility and livestock trailer, and again, this would be great for a 5,200 to 6,000-pound axle. The wheel size, it's probably between 14 1/2 to 16 1/2 inch. The weight capacity on this hub is between 26 to 3,000 pounds per hub.
So obviously, two of these at 3,000 gets you that 6,000-pound rating for axle. So this again, is a pre-greased bearing and everything, so it's gonna be quicker, it's gonna minimize friction, reduce wear and tear for a long-lasting use. These are high-quality parts. They even have a protective corrosion-resistant coating on the outside of the hub and everything to ensure that it's not gonna corrode or rust anytime soon. Well folks, I think that will wrap it up for our quick look together at this Terran Axle trailer idler hub assembly.
I'm Steven, thanks for watching.
Everything good
Great product and easy to install. Price was excellent as well! Fit my trailer exactly with some great tech support from Lazer!
great product, fast shipping. look at all great reviews shows it. you guys are killing it.
Info for this part was:
At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.






Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.
Error submitting comment. Please try again momentarily.