Max Torque Rating for 1/2" Studs on 7K Axle Hub and Drum Assembly
Updated 05/10/2023 | Published 05/08/2023
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Question:
What torque should the lug nuts be when installing these hubs? Ive seen pictures of the lug post snapping off, so I dont want to over torque them. They will be installed on a 7K lb axel, I think my wheels are 17.5 inch aluminum. 2021, Grand Design, Solitude S-Class, 3950BH
asked by: Jon
Expert Reply:
For hubs that have 1/2" studs, like the Easy Grease Trailer Hub and Drum Assembly for 5.2K - 7K Axles # AKHD-865-7-2-EZ-K you're looking at, you don't want to exceed 120 ft-lbs as that's the most torque this stud size can handle. Since you have 17-1/2" wheels I do recommend going all the way to 120 ft-lbs.
If your wheels have a 9/16" stud (like most 17-1/2" wheels that fit with coned lug nuts do) I recommend going with the Hub and Drum Assembly # AKHD-865-7-1-EZ-K instead. This has the same specs as the one you're looking at except it uses the 9/16" studs. With this setup you're looking at a torque range of 130-150 ft-lbs for a 17-1/2" aluminum wheel!
Product Page this Question was Asked From
Easy Grease Trailer Hub and Drum Assembly for 5.2K - 7K Axles - 12" - 8 on 6.5 - Pre-Greased
- Trailer Hubs and Drums
- Hub with Drum
- EZ Lube
- Pre-Greased
- 25580 / 14125A
- Standard Grade
- For 7000 lbs Axles
- 1/2 Inch Stud
- 8 on 6-1/2 Inch
- 16 Inch Wheel
- 16-1/2 Inch Wheel
- 17 Inch Wheel
- 17-1/2 Inch Wheel
- etrailer
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