Wheel Torque Requirements


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Torque Requirements

It is extremely important to apply and maintain proper wheel mounting torque on your trailer axle. Torque is a measure of the amount of tightening applied to a fastener (nut or bolt) and is expressed as length times force. For example, a force of 90 pounds applied at the end of wrench one foot long will yield 90 Ibs.-ft. of torque. Torque wrenches are the best method to assure the proper amount of torque is being applied to a fastener.

Note: Wheel nut or bolts must be applied and maintained at the proper torque levels to prevent loose wheels, broken studs, and possible dangerous separation of wheels from your axle.

Be sure to use only the fasteners matched to the cone angle of your wheel (usually 60 or 90 degrees.) The proper procedure for attaching your wheels is as follows:

  1. Start all bolts or nuts by hand to prevent cross threading.
  2. Tighten bolts or nuts in the following sequence.

trailer

 

 

3. The tightening of the fasteners should be done in stages.  Following the recommended sequence, tighten fasteners per wheel torque chart below.

4. Wheel nuts/bolts should be torqued before first road use and after each wheel removal. Check and re torque after the first 10 miles, 25 miles, and again at 50 miles. Check periodically thereafter.

Wheel Torque Requirements

Wheel Size 1st Stage 2nd Stage 3rd Stage
12" 20 - 25 35 - 40 50 - 60
13" 20 - 25 35 - 40 50 - 60
14" 20 - 25 50 - 60 90 - 120
15" 20 - 25 50 - 60 90 - 120
16" 20 - 25 50 - 60 90 - 120
16.5" x 6.75" 20 - 25 50 - 60 90 - 120
16.5" x 9.75" 55 - 60 120 - 125 175 - 225
14.5" Demount

Tighten sequentially to

85 - 95
17.5" Hub Pilot Clamp Ring & Cone Nuts 50 - 60 100 -120 190 - 220
17.5" Hub Pilot 5/8" Flange Nuts 50 - 60 90 - 200 275 - 325