How To Measure Trailer Axle Hub

October 10, 2020

Complete the trailer axle enquiry form and get a price for made to measure axles. What is the hub bolt pattern?

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Measure across the axle to the exact same spot on the opposite side.

How to measure trailer axle hub. (the face is where the wheel sits against the hub.) spring center. What kind of axle do you have? To determine your bolt pattern, first count the number of bolts per hub.

Trailer axle idler hubs and brake drums, bearings, seals, dust caps and spindle hardware. A very common designation for boat trailer hubs would be 5 on 4.5 or 545 for short. Refers to the length of the axle measured from the base of one wheel stud to the base of the wheel stud on the opposite side of the axle.

How to measure your trailer axle axle measurements helpful for determining proper replacement: Any parts that have to do with your trailer's axle can be found here. Cargo and utility trailers with 5 lug hubs are commonly found with a 5” bolt circle.

(generally adding 2” to the spring center measurement can determine the frame width.) To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. Over time and with use, your trailer axle(s) will eventually replacing.

How to measure a trailer axle. Measure hub face to hub face only. How to know what axle to order:when it comes to ordering axles, it can be very confusing.

Is the axle grease, ez lube, never lube or oil? Identify the number and size of studs on your hub, measure the pcd (pitch circle diameter). Be careful not to measure to the inside of the hub, only the outside.

Let's refer to this chart: To obtain the hub face measurement, first hook your tape measure to outside art of hub, that is the part of the hub that is facing the wheel. To correctly measure the bolt circle of a hub, measure from the center of the hub to the center of a stud and multiple that measurement by two.

Stop when you reach the outside face of the hub and hold the tape measure in place. Page 2, axles, hubs, bearings and spindles. Bearings have the number stamped into them or you can measure them with verniers.

The axle will either have brakes (braking axle), or no brakes (idler axle). In either case, the hub face (hf) measurement is measured to the same place, the outside face of the hub that holds the tires on. To measure the hub face of an axle and the spring center.

Our axles are listed based of the axles hubface measurement, once this has been determined it is much easier to search for the adequate sized axle. Hub face (axle track) refers to measuring from the outside face of one hub to the outside face of the opposing hub across the axle. This video shows how to measure your boat trailer axle, this will work for single axle boat trailers and tandem axle boat trailers, with galvanized trailer axles and round trailer axles with and without brakes.

This measurement is taken from the face of one hub to the face of the other hub where the rim touches the hub. The 4 drop spindle allows. For a thru axle and provide the most clearance.

Under slung mounts have the spring mounted below the axle and over slung mounts have the spring mounted on top. Read our article on bearing identification for details. When replacing a trailer axle try to determine how it was previously mounted.

Then measure from the center of the hub to the center of one bolt and multiply that number by two. The diagram below illustrates how to do this on 4, 5 and 6 stud hubs. Hub face (hf) and spring centers (sc) are what we use to determine your axle width and placement.

We need your axle track measurement. This is the primary measurement that is needed. When calling about axles there are a few things we will need to know.

Boattrailerparts.com brought to you by out of the box parts. All cambered axles should be mounted with the center bow up. Pull the tape measure along the axle to the outside face of the opposite hub.

What is the capacity of each axle? Do not measure from the back of the hub or brake flange as this will provide an incorrect track measurement. Also, keep in mind that when replacing your trailers axle, this would be the time to get a fresh and new galvanized trailer hub or trailer bearing kit to have a fresh hub or set of bearings to mount to your new trailer axle.

The measurement from the center of one spring pad to center of the other. Many trailer axles are cambered or 'road set' so there is a bow until weight is put on the axle. If the trailer hubs have an even number of bolts holding the wheel, measure from the center of one bolt to the center of the bolt directly opposite using a ruler, tape measure or caliper.

Stand at the opposite hub and slowly pull the tape measure towards you along the axle. Refer to axle measuring video for assistance. 3.the only other measurement needed is the spring center.

Most 4 lug hubs have a 4” bolt circle and most 5 lug boat trailer hubs have a 4 ½” bolt circle diameter. The hub face is also known as the mounting surface where the wheel studs are located. Identify inner and outer bearing.

We do not want you to order to wrong axle so we are going to tell you the easiest way we know to determine which one you need. how to measure your axle:hub face: The measurement from the face of one hub to the face of the other. This means that the hub has 5 bolts spaced evenly on a 4.5″ circle.

Trailer wheel bearings are specific to the spindle that is installed on the axle on your trailer. Wide selection of hubs sold online in canada for most trailers.

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