TC Front Hub Assembly

[JohnHWSteedman@aol.com]

I am just about to reassemble my front hubs/stub axles with new bearings,
seals and hubs. Is there a preferred sequence of assembly, - I've learned
that it pays to ask before you start!



John Steedman TC 0301

[Peter Pleitner]

Hi John,
New ball or roller bearings? Do you have the original spacer between the
inner races?
Cheers, Peter

-----Original Message-----
From: JohnHWSteedman@aol.com [mailto:JohnHWSteedman@aol.com]
Sent: Wednesday, January 19, 2000 4:16 PM
To: mg-tabc@egroups.com
Subject: [mg-tabc] TC front hub assembly

I am just about to reassemble my front hubs/stub axles with new bearings,
seals and hubs. Is there a preferred sequence of assembly, - I've learned
that it pays to ask before you start!



John Steedman TC 0301

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[NEWetzel@aol.com]

John,
Just a quick reminder to have the axles maganafluxed before reassembly if you
have not done so already. I had it done to mine last week and unfortunately
one is cracked so I am going to replace both. It will be a bit of a delay but
it should reduce the chance for problems later.
Norm Wetzel
48 TC 4924

[Bob and Carolyn Grunau]

Peter, John and Others,
The question of use of the bearing spacer has been answered MANY times.
Original information 35 years ago said to delete the spacer with tapered
rollers. This information was WRONG.
Please ALWAYS use the bearing spacer, suitably shimmed with shims if using
tapered roller bearings, as it makes for a much stronger front stub axle.

Regards, Bob
----------

> From: Peter Pleitner
> To: JohnHWSteedman@aol.com; mg-tabc@egroups.com
> Subject: [mg-tabc] Re: TC front hub assembly
> Date: Wednesday, January 19, 2000 4:42 PM
>
> Hi John,
> New ball or roller bearings? Do you have the original spacer between the
> inner races?
> Cheers, Peter
>
> -----Original Message-----
> From: JohnHWSteedman@aol.com [mailto:JohnHWSteedman@aol.com]
> Sent: Wednesday, January 19, 2000 4:16 PM
> To: mg-tabc@egroups.com
> Subject: [mg-tabc] TC front hub assembly
>
> I am just about to reassemble my front hubs/stub axles with new

bearings,

> seals and hubs. Is there a preferred sequence of assembly, - I've

learned

> that it pays to ask before you start!
>
>
>
> John Steedman TC 0301
>
> ------------------------------------------------------------------------
>
> eGroups.com home: http://www.egroups.com/group/mg-tabc
> http://www.egroups.com - Simplifying group communications
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>
>
>
>
>
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[JTPAKI@aol.com]

In a message dated 1/19/00 7:52:48 PM Pacific Standard Time,
cgrunau@pathcom.com writes:

> Please ALWAYS use the bearing spacer, suitably shimmed with shims if using
> tapered roller bearings, as it makes for a much stronger front stub axle.
>

Bob, do you know a source for the shims other than using shim stock and
making your own? (not real pretty)

Joe Potter

[Peter Pleitner]

Hi Joe,
For shims, look up my article on the T-ABC web site.
Cheers, Peter

-----Original Message-----
From: JTPAKI@aol.com [mailto:JTPAKI@aol.com]
Sent: Thursday, January 20, 2000 12:28 AM
To: mg-tabc@egroups.com
Subject: [mg-tabc] Re: TC front hub assembly

In a message dated 1/19/00 7:52:48 PM Pacific Standard Time,
cgrunau@pathcom.com writes:

> Please ALWAYS use the bearing spacer, suitably shimmed with shims if using
> tapered roller bearings, as it makes for a much stronger front stub axle.
>

Bob, do you know a source for the shims other than using shim stock and
making your own? (not real pretty)

Joe Potter

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[Frank O_ The Mountain]

In a message dated 1/20/00 12:06:15 AM Pacific Standard Time, JTPAKI@aol.com
writes:

>

[/quote]Joe, MGB shims work well.....I used them on the N type.
Terry

[AJChalmers@aol.com]

Don't even think of using other than ball bearings in the front hubs. Stub
axles are designed for balls and rollers tended to cause two piece stub
axles. I can't locate the scholarly treatise on the subject, but if I do I
shall post.

[Chip Old]

I wrote something on the subject for TSO about a zillion years ago, but
can't put my hands on it at the moment. The gist of it is that the
strength of the spindle with the original ball bearing and spacer assembly
is derived from the fact that when the spindle nut is tightened correctly
the spibdle, inner races, and spacer are all locked together into what is
in effect a single unit. The strength of the whole assembly is much
greater than the strength of the spindle by itself. The spindle by itself
is pretty weak.

Way back when, converting to tapered roller bearings sans spacer was a
popular modification. The tapered rollers were thought to have a longer
life, and adjustment certainly was a lot easier (just tighten the nut
until the correct end float was achieved). Trouble is, spindles broke.

There is nothing wrong with converting to tapered roller bearings, but you
MUST use a spacer between the inner races. To adjust end float, shorten
the spacer or add shims to lengthen it, as required, and tighten the
spingle nut really tight to lock the spindle, inner races, and spacer
assembly together as in the original ball bearing setup. DO NOT use the
nut to adjust end float.

There is also nothing wrong with using ball bearings as original. If
high-quality bearings of the correct type are used, and if the hubs are
assembled correctly, the bearings will last a long time. A lot of the bad
press surrounding ball bearings was the result of (1) the inferior quality
bearings once supplied by most of the T-Series parts houses, (2) reuse of
collapsed spacers, and (3) sloppy assembly.

On Thu, 20 Jan 2000, AJChalmers@aol.com wrote to JTPAKI@aol.com and...:

> Don't even think of using other than ball bearings in the front hubs. Stub
> axles are designed for balls and rollers tended to cause two piece stub
> axles. I can't locate the scholarly treatise on the subject, but if I do I
> shall post.

--
Chip Old (Francis E. Old) E-Mail: fold@bcpl.net
Manager, BCPL Network Services Voice: 410-887-6180
Manager, BCPL.NET Internet Services FAX: 410-887-2091
320 York Road 76.60300 W
Towson, Maryland 21204 U.S.A.

[Bob and Carolyn Grunau]

I disagree.
The stub axle does not know if ball or roller bearings are being used. The
critical difference is that previous information was to leave out the
bearing spacer and install the stub axle nut loose when using tapered
roller bearings. This resulted in a smaller effective diameter stub axle
than if the whole assembly was locked up using the spacer and shims and the
nut fully tightened. That was the problem, not the bearings. A
properly set-up front stub axle using tapered rollers, bearing spacer and
shims to allow the stub axle nut to be fully tightened will result in a
much superior wheel bearing assembly.
Tapered roller bearings are far superior to the original ball bearings.
Thats why modern cars use tapered rollers.
Bob
----------

> From: AJChalmers@aol.com
> To: JTPAKI@aol.com; mg-tabc@egroups.com
> Subject: [mg-tabc] Re: TC front hub assembly
> Date: Thursday, January 20, 2000 9:25 AM
>
> Don't even think of using other than ball bearings in the front hubs.

Stub

> axles are designed for balls and rollers tended to cause two piece stub
> axles. I can't locate the scholarly treatise on the subject, but if I do

I

> shall post.
>
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