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How to Measure a Trailer Spindle


I need to find out how to measure a trailer spindle.


Expert Reply:

I have included a picture that shows the measurements needed for a spindle, bearings, seals, faces, and hubs. The spindle measurements are labeled A through F.

A is the spindle shaft diameter
B is where the grease seal sits
C is where the inner bearing sits
D is where the outer bearing sits
E is the thread diameter at the end of the spindle for the nut
F is the spindle shaft length

I have also included a link to our spindle main page for you. The measurements need to be as accurate as possible so you will need to use dial or digital calipers.

click to enlarge
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