NLGI #1.5 vs #2

[LM]

I posted a query here and appreciated the good input.

With wheel bearings usually using NLGI #2, afaik, would the tiny roller bearings do better with NLGI #1.5, for pumpability's sake?

The originally spec'd Mobil GS57C is NLA: I haven't been able to get its specs.

 

[widman]

pumpability can vary with the consistency, but also with the base oil and other factors. As an example of two of the #2 greases I have, one is super easy to pump, the other super hard.

going to a softer grease is just looking for less soap (sponge) to hold it in place. Bearing size, speed, and load are used to determine the base oil required for a bearing, totally unrelated to softness (1.5 is softer than 2).

As another example, I have a #0 grease that uses a 320 base oil. Very pumpable, used for slow turning bearings with high loads. You wouldn't want to put it at high speed.

 

[bruce381]

since when is there a 1.5 grade for grease?
bruce

 

[DieselPower]

quote:

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Originally posted by bruce381:

since when is there a 1.5 grade for grease?
bruce

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Since as long as I can remember. Texas Refinery Corp has made a 1 1/2 and a 3 1/2 NGLI grease for decades. They are special application greases but they are out there. Just not something you see on the normal everyday auto parts store shelf.