I work in a hot rolling mill. Does any one know of a coupling grease that won't fling out of couplings. We have a old mill-some seals are out and it would take to long to change out. The downtime versus grease lost wouldn't be worth it. We grease about every 2 weeks. Therefore creating a huge mess. Some old timers told me back in the day they used grease that was in blocks and it would never fling out. Does anyone have any answers. Thanks so much.

Have you taken a look at Mobil XTC coupling grease?

First do not just use a bearing grease in couplings because there are some specific requirements. One of the most important is that the thickener and additives do not separation under centrifugal forces. Get data or run ASTM D4425 high-speed centrifuge test on the greases. Also if the area is wet do water washout testing and corrosion tests. I would also run the Shell Roll Stability test because some thickeners soften considerably with working, heat and water. Plus, do some form of long term mechanical worked testing like 100,000 strokes D217 or the Shell Roll test. Most manufacturers now offer specific coupling greases as do some coupling suppliers. Do a Goggle search. I like the calcium sulphonate thickened ones because they do not require added EP additives and provide outstanding corrosion protection. Note; I do not sell coupling greases. See also AGMA CG-2 and CG-1 for their grease coupling specifications.

Mobilgrease XTC is the best and most recommended coupling grease in industry. Call 1-800-MOBIL-25 for your closest distributor.

The softer the grease the better in a coupling but unfortunatelly the sealing lets us down so I suggest that you change to a stiffer grade NLGI 2
In our Hot Strip Mill we use Castrol SBX 2 Grease

just try falk LTG (long term grease)its specialy designed from thickner doesnt allow for the thickner to separate from the base oil dute centrifugal forces at high speed coupling