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Sealed bearings on a mower hub?

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joeyd

Member
Joined
Nov 4, 2019
Messages
9
Location
East Greenwich RI
Hi - Got a older commercial walk behind here with 1 blade hub that's pretty noisy. Thought the bearings are dry so I went looking for a grease fitting on the hub, but there isn't one. Took apart the the hub and the bearings are sealed on both sides. I've rebuilt a few hubs in the past, including Cubs, and they have a grease fitting and the bearings are open on the inside so the grease gets to them. Anyone have experience with these sealed bearings? How long do they last? Should I drill and tap a hole for the grease fitting and take the seals out of the inside of the new bearings? I guess I'm used to greasing those hubs every now and then.....
 
Joined
Jan 26, 2021
Messages
50
Location
U.P. Michigan
We have three cub pro-z 500
20190618_092843.jpg
s models at work. All 3 have sealed bearings on the decks and all 3 have over 200 hours with one over 400 hours. I have yet to replace a belt or spindle. There is a night and day difference between cubs commercial products and their residential products.
 

joeyd

Member
Joined
Nov 4, 2019
Messages
9
Location
East Greenwich RI
OK thanks. I'll just put the new bearings in with the seals intact. I'm just familiar with old equipment I guess, kinda like me:>)
 
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