To measure axle size, specifically the hub face or track width dimension as described in the reference, you need to measure the distance between the outer faces of the hubs where the wheels mount.
This measurement is crucial for ensuring proper fitment when replacing axles or integrating them into a vehicle or trailer.
Measuring Hub Face / Track Width
Measuring the hub face or track width requires removing the wheels to access the hub surface. Follow these steps:
- Prepare the Axle: Remove the tire assemblies from your axles. This exposes the hub surfaces where the wheel rims make contact.
- Locate Measurement Points: Identify the outside face of one hub where the rim touches. This is your starting point.
- Measure Across: Hook your tape measure precisely on the outside of the hub where your rim touches.
- Extend and Align: Extend the tape measure across the axle to the exact same spot on the other side's hub face.
- Record the Measurement: Note the measurement in inches or millimeters. This distance is your hub face or track width measurement.
Reference Information:
Remove the tire assemblies from your axles. Hook your tape measure on the outside of the hub where your rim touches. Measure across the axle to the exact same spot on the other side.
This measurement provides the width of the axle from the mounting surface of one wheel to the other.
Other Axle Measurements
While the hub face/track width is a key measurement, "axle size" can also refer to other dimensions, such as:
- Axle Diameter: The thickness of the main shaft of the axle.
- Spindle Size: The dimensions of the part of the axle where the wheel hub mounts, including diameter and length.
- Spring Center Measurement: The distance between the center of the leaf spring seats on the axle (important for spring suspension systems).
However, the method described above specifically details how to measure the hub face/track width, which is often a primary consideration for compatibility.
