New bearings for bench mill

[wrmiller]

Replacing the bearings in my old PM25 and thought to ask the experts here about grease.

NOTE: I replace the spindle bearings when I bought the machine 10 years ago and use some (white-ish?) expensive grease that was recommended. It didn't work very well, which is why I'm replacing the bearings during the machine rebuild/cleanup.

The two upper ball bearings are sealed (Nachi), so I'm not worried about them. But the spindle is supported/held by two tapered roller bearings (again Nachi) and can be a bit fussy about grease, or so my past experiences have shown. So, suggestions on grease type? Synthetic? Plain old wheel bearing grease? Thanks.

 

[jarhead]

I would probably use the same grease used on a trailer or car wheel bearing. Something recommended by Timken.

https://www.timken.com/resources/cv14-packing-a-tapered-roller-bearing-with-grease/

 

[JFL4066]

The Best and most recommended grease for bearings especially high speed in the industrial arena is Kluber Grease. Google search it. There are different types.