How to Check a Wheel Hub for Runout with a Dial Indicator
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- Опубликовано: 30 сен 2024
- How to check the runout on a hub. Hub runout is the lateral movement, which is the hub running off center. This can cause mild to excessive vibrations depending on the severity, either in the steering, throughout the whole vehicle, or brake pedal. Depending on the severity of the runout, this can cause parts to wear quicker or create premature failure. Excessive hub runout can be causes by a poorly machined surface, a bent hub, or worn bearings. It’s also important to check hub runout when checking a rotor for runout if both assemblies are separate. So that would mean the rotor, hub, and wheel bearing isn’t one assembly. #autorepair #wheels #mechanic
Amazon links for various products used in the video for both USA and Canada:
USA:
Magnetic base: amzn.to/3dD3Nz0
Dial indicator: amzn.to/3mohIwT
Canada:
Magnetic base: amzn.to/2PDpRBD
Dial indicator: amzn.to/3dx6AtL
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Tools/Supplies Needed:
-dial indicator
-mounting hardware for dial indicator
-magnetic base or clamp
-sandpaper
Procedure:
-for this you will need a dial indicator and mounting hardware
-normally you can use a magnetic base, but in this case most of the suspension components are made of aluminum
-I don’t have a clamp mount so instead I’ll use a bolt to connect it where the brake caliper carrier mounts to
-preload the dial indicator, I would recommend about 0.050” and make sure it runs on the furtherest point from the center of the hub face
-it’s important to measure the furthest point as this will show the maximum runout
-zero the dial indictor by rotating the face and tighten the lock
-rotate the hub and watch the dial
-here we have less than 0.001” of runout which is good
-maximum allowable runout will depend on manufacturer specifications, so be sure to consult with your vehicle’s specs first
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No part of this video or any of its contents may be reproduced, copied, modified or adapted, without the prior written consent of the author.
Amazon links for various products used in the video for both USA and Canada:
USA:
Magnetic base: amzn.to/3dD3Nz0
Dial indicator: amzn.to/3mohIwT
Canada:
Magnetic base: amzn.to/2PDpRBD
Dial indicator: amzn.to/3dx6AtL
Thank you I've been studying this and be careful that the auto parts store that presses your bearings in your hubs for you doesn't leave the spacer out between the bearings which stated to me I had three repeated failures before I took it to the shop they said Hey where's the spacer
No problem and thank you for the feedback too! What a mess on their part, such a big safety risk and not to mention a headache.
Old video but helped me to solve small vibration. Regular check of the bearing (playing with the tyre 9-3 and 12-6) showed no issue, but checking runout and it was over the spec, in my case I also had to rebuild the calipers.
Awesome to hear I was able to help and you got the issue solved!
Another amazing video! :D
I'm here because Toyota TechDoc for my CT200h told me I needed a 'dial indicator' lol Thank you!
No problem, happy to help!
Could someone explaine me what is purpose of the bearings?why they are put on shafts?
To allow for accurate rotational movement.
Good example and illustrations..
Thank you!
Thanks for making the video.
No problem :)
Hi would this be the same for a solid rear??
Yes it would be the same procedure.
Awesome video - thanks
Thank you!