F150 wheel bearings

[buck91]

Wheel bearing hub assembly has developed a growl so gotta throw a new one in. Going to pick up an SKF from rockauto... Anybody know for sure what type of grease these are lubed with during assembly? I'd like to add some to the pilot needle bearings just because they are wide open during assembly. I'd also like to pump more into the main bearing through the ABS hole- I did this on my 2011 many years ago and still have the original bearings up front without any issues....


I would think its almost 100% a lithium grease, but then again its not worth gambling on grease incompatibility either...

 

[Chris142]

No way to know what type and adding grease to a pre greased bearing is not always a good idea.

 

[ripcord]

Wheel bearing hub assembly has developed a growl so gotta throw a new one in. Going to pick up an SKF from rockauto... Anybody know for sure what type of grease these are lubed with during assembly? I'd like to add some to the pilot needle bearings just because they are wide open during assembly. I'd also like to pump more into the main bearing through the ABS hole- I did this on my 2011 many years ago and still have the original bearings up front without any issues....


I would think its almost 100% a lithium grease, but then again its not worth gambling on grease incompatibility either...

Just make sure you don't order SKP bearings by mistake. Don't ask me how I know, LOL.

 

[Lubener]

Wheel bearing hub assembly has developed a growl so gotta throw a new one in. Going to pick up an SKF from rockauto... Anybody know for sure what type of grease these are lubed with during assembly? I'd like to add some to the pilot needle bearings just because they are wide open during assembly. I'd also like to pump more into the main bearing through the ABS hole- I did this on my 2011 many years ago and still have the original bearings up front without any issues....


I would think its almost 100% a lithium grease, but then again its not worth gambling on grease incompatibility either...

I would not add grease to a hub bearing in any way. You will destroy the seal to keep the grease in and likely introduce a grease which is different and will break down the grease inside the hub assembly. Also, too much grease can be a bad thing.

 

[Trav]

Some people have removed and replaced SKF hubs erroneously due to an initial roughness feeling when rotated. This is normal and due to the special grease they use. Do not add any grease to these hubs.

https://brakeperformance.com/blogs/...ptfkfvfLTvoxsZ-475qHX6xhkJNJ-f4kUIZseU8fZcri4

 

[buck91]

Some people have removed and replaced SKF hubs erroneously due to an initial roughness feeling when rotated. This is normal and due to the special grease they use. Do not add any grease to these hubs.

https://brakeperformance.com/blogs/...ptfkfvfLTvoxsZ-475qHX6xhkJNJ-f4kUIZseU8fZcri4

Thats really interesting. A little searching and it seems there's evidence this is a polyurea grease (which makes sense).