Trailer Spindle Size Chart

Trailer Spindle Size Chart. Includes straight axles (round or square), drop axles with offset spindles, and torsion axles. Use this chart as a general guide only.

 Repair Guides Trailer Towing Hitch (tongue) Weight
Repair Guides Trailer Towing Hitch (tongue) Weight from

If you have the tapered spindle, go to napa and get br17 (1 3/8) inners and br4 (1 1/16) outers. Important when reusing old mounting hardware and also for proper tire clearance. Spindle assembly includes the spindle, castle nut, washer, and cotter pin.

Important When Reusing Old Mounting Hardware And Also For Proper Tire Clearance.

F is the spindle shaft length. Tn series axles these economical, versatile axles are ideal for a wide range of applications. You need to know which size he has.

1.75 In B = Shank Length:

Either way, it’s best to specify the desired angle when buying a torsion axle. That is the 'standard' combo if you have a tapered spindle. 3.5 in c = overall length:

E Is The Thread Diameter At The End Of The Spindle For The Nut.

The spindle measurements are labeled a through f. Step 2 determine the location of the inner bearing on the spindle, the smooth metal surface closest to the middle of the trailer. Your colors may be different, read the instructions!

Includes Straight Axles (Round Or Square), Drop Axles With Offset Spindles, And Torsion Axles.

With a boat that size being on a single axle trailer, i'm betting that it is a 3500 lb rated axle and your bearings are 1 3/8 inner and 1 1/16 outer. The spindle dimensions are as follows: A is the spindle shaft diameter.

As You Can See, There Are Only 3 Basic Sizes Of Axles

However, should your spindle be a straight spindle, the front and rear bearing sizes will be identical. The tapered spindles require a bigger rear bearing than the front one. Measure the width of the spindle in this location with a digital caliper.