Good eyes! For all with bearings, I check my temps after the drive to make sure all are about the same temp.
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=93983I use a larger version of this at home, but for the price and size, you can't beat it! We have a few of these at work.... very compact! Typically I see about 120F in the summer on each hub (this is on my old Grease filled Maxum, my FW has oil bath).
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Walt B
"Debt-Charged"Black '07 H210SS6.2L Bravo One turning a 21P HIFive
Wakeboard Tower with Perfect Pass Stargazer version
Missouri River; Kansas City, Mo.