While the bearings may be good, they may be binding a bit, creating the heat. Had this happen on a JD deck - one of the bearings wasn't completely perpendicular to the spindle shaft and it made noise and got warm. Your tensioner might be too tight as well, if the wrong spring is used. Usually a belt makes noise before heat if it's slipping.
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Mike  - Ramsey, MN
'65 100 - #126432
Options: V61's, 8.5" Tru-Powers, stock sleeve hitch, Xtreme sleeve hitch adapter
Attachments: Dad's 42" Dozer Blade & 38" 3-spindle deck, 42U deck, Homemade Sleeve Hitch Dethatcher & a QA36A Snowthrower
Mods: K301 Upgrade, IHinIN's clutch pivot upgrade, SST driveshaft, custom bar axles
"Why buy something shiny & new when you can save something old."
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