Depends on the style. If it is a not so sealed bearing or bushing type I lube them .

Lube sounds like a good idea, but that's a 'dirty' environment. I was just wondering because in all the years I've been on this forum I have not heard it mentioned once. I guess these bearings must usually last as long as the deck.

I agree. Lube would attract dust which would then be ground up and infiltrate deeper than if it were dry.

"I've been meaning to ask this for a long time...does anybody do any maintenance to the axle bearings where the axle passes through the deck on self-propelled mowers?"

The Lawn Boy Self-propelled mowers that I have had had grease zerks and I greased them. I use motorcycle chain lube on all pivot, motion, points on my push and riding mowers where zerks are not present.

Some use the "dirt" argument for not lubing chains of Dixon ZTRs for example, I use motorcycle chain lube and have replaced many chains AND sprockets from not being lubed on mowers I repaired. My chains and sprockets last "forever".

Walt Conner

If I had grease fittings for these bearings, I wouldn't be asking the question. Thanks for the suggestion on the MC chain lube.

The chain lube is good- (my pj is a moly lube.) Also, in years past we'd use the greaseless lube in the light blue can LPS? if it is still available. Some would actually make an aerosol adapter to grease zirk for the Toro rear piviot arms. It would help clean them out and they wouldn't get all gummed up like with some of the crap folks put in their grease guns.

There is a product called 'Lithium Grease' that comes
in an aerosol can. The grease is highly diluted with
a solvent. You spray into tight areas and afterward
the solvent evaporates leaving the grease behind to do
it's job. I've found a lot of uses for this product
and it might work for you. Remember, metal rubbing
against metal without lubrication is not a good thing,
(in most instances).

dont over lube your lawnboys with the toro trans -toomuch grease will cause the friction disk to slip and the wheel wont drive

Where is the friction disk located? in the gearbox or at the wheels?

they are on the wheels -sorry i should have been more specific.

"Where is the friction disk located?"
"they are on the wheels "

Mever seen anything like that in the wheels of our 10515 or any of the other self-propelled LBs we have had.

Walt Conner