How Important Is Axle Nut Torque?

by | Last updated on January 24, 2024

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Proper torque is critical for two reasons. First,

it secures the axle nut so it won’t work itself loose and back off

. Second, the proper torque keeps the correct load on a hub assembly needed for longer bearing life. … When you’re removing the wheel hub nut, you can use an impact wrench to speed up the job.

How much torque does an axle nut need?

Generally, jam nuts less than 2-5/8′′ should be torqued to 200-300 lbf-ft; nuts 2-5/8′′ and over should be torqued to

250-400 lbf-ft

.

What happens if you tighten axle nut too tight?

An axle nut that is too tight will

put too much preload on the hub bearings thus diminishing their life expectancy

.

Can you over tighten a CV axle nut?


No

. Over tightening won’t put more of a strain on the bearings in this sort of design. You should’ve torqued those nuts down quite a bit.

What is the torque for a rear axle nut?

We apologize for this inconvenience and are asking ALL customers to check the axle nuts with a torque wrench to make sure they are properly torqued. Drum brakes should be torqued to 100-110ft/lbs and

disc brakes to 170-190 ft/lbs

per the Blue Bird Service Manual.

Can you over torque a wheel bearing?

It’s possible to damage the wheel, rotor, and hub assembly. The

wheel can come off if

over-torquing the nuts/bolts is done. It happens, but it doesn’t happen a lot. The only way to tighten them is with a Torque wrench.

What happens when you over tighten a wheel bearing?



Excessive preload will cause excessive friction

and the bearing will run hot, compromising lubrication and eventually leading to flaking (material coming off) at the large end of the rollers/races,” he says. “On the other hand, adjusting the bearing too loose causes excessive looseness and vibration in the system.

Do you have to torque the axle nut?


Proper torque secures the axle nut

and keeps the proper load on the hub assembly. … Proper torque is critical for two reasons. First, it secures the axle nut so it won’t work itself loose and back off. Second, the proper torque keeps the correct load on a hub assembly needed for longer bearing life.

How do I tighten my axle?

A

Loud Clanking, Clunking, or Clicking

When constant velocity axles fail, you may also hear an unusual clicking sound may when turning the vehicle as joints become loose. These clicks are on the side of the faulty axle shaft and typically become noisier during sharp or fast turns.

How do you torque a wheel bearing nut?

Lubricate the wheel bearing with clean lubricant of the same type used in the axle sump or hub assembly. Tighten the adjusting nut to a

torque of 200 ft-lb while rotating the wheel hub assembly

. Back the adjusting nut off one full turn. Re-torque adjusting nut to 50 ft-lb while rotating the wheel hub assembly.

What is the torque for hub assembly?

The torque specifications for GM wheel hubs generally range between

107 to 225 foot-pounds

, depending on the year and model.

What is the torque spec for caliper bolts?

The caliper bolts have a torque spec of

44 ft/lbs and 23 ft/lbs in the rear

.

What should I torque my wheels to?

Hardware Bolt or Stud Size Typical Torque Range in Ft/Lbs Minimum Number of Turns of Hardware Engagement 12 x 1.25 mm 70 – 80 8 14 x 1.5 mm

85 – 90


7.5
14 x 1.25 mm 85 – 90 9 7/16 in. 70 – 80 9

How tight do you tighten front wheel bearings?

of torque while rotating the wheel to make sure the bearings are seated. The adjustment nut is then loosened 1/6 to 1/4 turn, and locked in place with a new cotter pin. As a rule, endplay should be

about 0.001 to 0.005 inches

.

Can I reuse an axle nut?

The

shop manual warns not to reuse the axle nut

, so I trotted off to the parts store for a new one. … I’m referring to the special nuts on major components like axle shafts and ball joints where a lost (or loosened) nut can cause accidents, even fatal accidents.

Rebecca Patel
Author
Rebecca Patel
Rebecca is a beauty and style expert with over 10 years of experience in the industry. She is a licensed esthetician and has worked with top brands in the beauty industry. Rebecca is passionate about helping people feel confident and beautiful in their own skin, and she uses her expertise to create informative and helpful content that educates readers on the latest trends and techniques in the beauty world.