How much grease in a standard (non ebike) hub

[Raboa]

I need to replace the bearing in my front (non ebike) hub.

The hub takes 3/16 bearings, they have a 4.78mm diameter.

To fill a 4.78mm squared cube takes 0.109ml of liquid.

So if one side of a hub takes 11 bearings then:

11 X 0.109ml is 1.199ml.

You would only fill half the space each side with grease so 1.199ml divided by 2 is 0.595ml.

One side of a hub would need 0.595ml of grease.

A whole hub would need 1.199ml.

So filling a syringe with grease and using 1ml per side would be more than adequate.

Am I correct in my thinking.

Yes, I need to get a life.

 

[Raboa]

I asked Park tool, their reply:

Thanks for reaching out. You may be over thinking it to be honest. There are many trains of thought on this and some like some added space for the grease but others like them to be completely packed with grease. Both have sound reasoning. I would say to apply ample amounts of grease and you will be safe.

 

[Danidl]

The purpose of the grease is just to Lubricate. It is not a dust shield . The more that is packed, the greater the viscous power loss.