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Harry Ferguson Tractors Discussion Forum
Show Parts for Model:

Front Wheel Bearing Seals...

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Tom Bowman

04-11-2014 09:53:39
108.247.41.46



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When I disassembled the front hubs on the TO-20, it had this kind of seal (the catalogs call it a "lip-type" seal):


They fit into the hubs very loose.

I ordered replacements, and I got this kind, which Sparex lists for the TO-20:


I like the looks of the Sparex seals: they're a lot more substantial, and they seem to fit the hubs and spindles better than the other kind. (I haven't assembled them with the bearings yet.)

Has anyone else tried the Sparex seal?

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Tom Bowman

05-20-2014 08:55:07
108.247.41.46



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 Re: Front Wheel Bearing Seals... in reply to Tom Bowman, 04-11-2014 09:53:39  
Thanks, Bill. (I thought that made the most sense, but sometimes my thinking ain't always right.)



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Tom Bowman

05-19-2014 11:12:31
108.247.41.46



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 Re: Front Wheel Bearing Seals... in reply to Tom Bowman, 04-11-2014 09:53:39  
Which direction is the "new" kind of seal (the Sparex seal in the second and third pictures) installed in the hub?



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Ark68SS

05-19-2014 20:55:19
172.13.140.181



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 Re: Front Wheel Bearing Seals... in reply to Tom Bowman, 05-19-2014 11:12:31  
Quoting Removed, click Modern View to see

The "open" end (third picture) goes toward the bearing.

BillL



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Charles in Aus.

04-11-2014 21:55:35
211.30.58.217



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 Re: Front Wheel Bearing Seals... in reply to Inno, 04-11-2014 09:53:39  
Quoting Removed, click Modern View to see

Bob, that is what I have always understood to be the best practice . There is though , a Ferguson service bulletin that states the exact opposite and does specify pre load . This is what the old tractor service agent that told me off, waved under my face when I tried to reason with him . I backed off fairly quickly after reading it .



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jennifer408

04-11-2014 21:22:36
67.142.162.27



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 Re: Front Wheel Bearing Seals... in reply to Tom Bowman, 04-11-2014 09:53:39  
I was always taught to tighten the bearing nut until it affects how free the wheel spins, and then back it off slightly until the wheel spins freely, usually less than a quarter of a turn. Have never had any problems. You don't really want free play, just free and smooth spinning.[/quote]



yep, that's how grandpa showed me.



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Bob

04-11-2014 21:31:47
64.255.159.192



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 Re: Front Wheel Bearing Seals... in reply to jennifer408, 04-11-2014 21:22:36  
You ACTUALLY do want a small amount of play and NO "preload" in wheel bearings.



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Greg Vickers

04-11-2014 18:52:00
174.118.172.187



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 Re: Front Wheel Bearing Seals... in reply to Tom Bowman, 04-11-2014 09:53:39  
Quoting Removed, click Modern View to see

I was always taught to tighten the bearing nut until it affects how free the wheel spins, and then back it off slightly until the wheel spins freely, usually less than a quarter of a turn. Have never had any problems. You don't really want free play, just free and smooth spinning.



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Tom Bowman

04-11-2014 18:48:50
70.195.5.134



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 Re: Front Wheel Bearing Seals... in reply to Tom Bowman, 04-11-2014 09:53:39  
Thanks, guys.

Charles, I think the Shop Manual says to tighten the nut, then back it off by one face of the hex nut and insert the cotter pin. (I haven't adjusted tractor wheel bearings before, but bicycle cup-and-cone wheel bearings tend to loosen up with use, so you usually err on the tight side.)
Bruce, my hubcaps don't have grease fittings, but I see that they're available: should I get a new hubcaps?

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Charles in Aus.

04-11-2014 18:01:59
211.30.58.217



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 Re: Front Wheel Bearing Seals... in reply to Tom Bowman, 04-11-2014 09:53:39  
An interesting point about the front bearings .
I have always left a little free play in wheel bearings ; tighten them up to a nip then back off half a turn . I was well and truly told off by an old tractor man for doing this. Seems that the 19'' wheel puts such a lateral strain on the bearing and hub that any free play leads to a wobble fairly quickly , this in turn ruins the seal . A preload of a few ft lbs. is recommended to keep the bearing and seal in service without undue wear .

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Bruce(OR)

04-11-2014 13:21:09
97.115.25.161



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 Re: Front Wheel Bearing Seals... in reply to Tom Bowman, 04-11-2014 09:53:39  
Greetings!! I hope you realize that wheel bearing seals on tractors are NOT, NOT designed to keep grease in. They were designed and installed to keep dirt out. So, when you pump grease into the hub, it will ooze out and force the dirt out at the same time.



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Tom Bowman

04-11-2014 10:48:32
108.247.41.46



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 Re: Front Wheel Bearing Seals... in reply to Tom Bowman, 04-11-2014 09:53:39  
Thanks, Miner. Since I didn't replace the wheel bearings themselves, I wanted to make sure I could use these new seals with the old bearings.



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miner09

04-11-2014 10:17:28
70.196.9.70



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 Re: Front Wheel Bearing Seals... in reply to Tom Bowman, 04-11-2014 09:53:39  
That is the new type seals. All company's are the same. They will work fine.



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