Front wheel bearings

Tue Aug 13, 2013 1:55 am

Hi,
I just wanted to ask if everyone has been greasing their front wheel bearings. The Cub owner's manual says "After every 6 months or every 500 hours of operation, whichever occurs first, remove, clean, and grease the front wheel bearings." That's a lot of greasing. I doubt many people do it that often. :) But I wanted to put some info here, because they do need some greasing, if they get dry it will probably ruin your bearings. :)

Re: Front wheel bearings

Tue Aug 13, 2013 5:10 am

Thanks for the reminder...I grease my tractors usually every other usage...Always forget about the wheel bearings.... Suppose to rain today...Good chance to do them....Reverse thread if I recall :mrgreen: .... :thanx: Dave

Re: Front wheel bearings

Tue Aug 13, 2013 6:41 am

Tractor wheel bearings like trailer wheel bearings sit often, never getting warm enough to drive the condensation out. My experience with both types of bearings indicates the back bearing grease can become water / moisture laden.

I've seen this in my RV axles and most recently on Rex ''48 where the one inner bearing was greasy but still rusted. This can happen even with the seals being in perfect condition. The hub warms and cools with the weather, sucking moisture in. Hence the 6 months or 500 hours.

My narrative is complete :D

Re: Front wheel bearings

Tue Aug 13, 2013 8:37 am

The Long Stripe manual dropped the 'routine' maintenance of the front wheel bearings. I would surely recommend that it be done as soon as you bring a Cub home. If the seals are in decent shape and you don't leave it in a deep puddle you should be set for years..... but you MUST do it once.

I have had two that were very rusty and had to replace the whole 'kit'. If I just ran them, it would eventually ruin something....

Not a hard job, the instructions are in the operators manual (except the Long Stripe manual). The bearings are pretty stout, but water will ruin them eventually. If maintained they will last as long as the tractor.

Re: Front wheel bearings

Tue Aug 13, 2013 9:12 am

My cubs have grease fittings on the front hubs and I give them a couple shots every so often, depending on the use. On ones without the fittings, as a shortcut you can remove the cap over the end and fill with grease then screw it back in.

Re: Front wheel bearings

Tue Aug 13, 2013 10:18 am

John *.?-!.* cub owner wrote:My cubs have grease fittings on the front hubs and I give them a couple shots every so often, depending on the use. On ones without the fittings, as a shortcut you can remove the cap over the end and fill with grease then screw it back in.


I was hoping someone would say that. That's what I did.

Re: Front wheel bearings

Tue Aug 13, 2013 5:53 pm

When you do grease them use plenty of grease pack the hub full , with the quality of today's grease it will keep most of the water out :wink: Will last a good amount of time. But I will reemphasize what Larry [ Buzzard wing ] said DO IT WHEN YOU FIRST GET YOUR CUB!!! It will save you $$$$$ most of the time all you will have to do is clean and pack em. Do not take the inside bearing off unless you have to, the seals cost big bucks.

Boss

Re: Front wheel bearings

Tue Aug 13, 2013 7:15 pm

Yep, full of grease and there is no room for water. In higher speed stuff where heat is a factor (mower spindle, for example) too much grease will expand and push past the seals. But even in my 'high speed run' back and forth to the fort, I doubt much heat is generated.

I was really pleased when I repacked the 49 Cub's front bearings, they were PERFECT. Never seen tapered roller bearings where there was no cage.... really helps to keep a Cub under cover.