Front wheel bearings

[olley]

Hi just had it jacked up for a service and I noticed a slight movement on the wheel, I take that it has tapered roller bearings, does anybody know if these should be pre-loaded? or should there be a little movement.

And before anybody suggests it, no its not the king pins or the steering lingage. (ex Vehicle Mec)

Olley

[olley]

Hi just had it jacked up for a service and I noticed a slight movement on the wheel, I take that it has tapered roller bearings, does anybody know if these should be pre-loaded? or should there be a little movement.

And before anybody suggests it, no its not the king pins or the steering lingage. (ex Vehicle Mec)

Olley

[DonavonP]

Olley, I'm bumping this thread as I am interested in the answer as well.

[DriVer]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by olley:
Hi just had it jacked up for a service and I noticed a slight movement on the wheel, I take that it has tapered roller bearings, does anybody know if these should be pre-loaded? or should there be a little movement. </div></BLOCKQUOTE>How much movement, is it vertical or lateral? Did you remove the hub cap and check the fluid level in the sight glass?

[olley]

Hi Driver site glass is up to level so no prob. there, movement top/bottom and side to side, its only a very small amount of movement.

One lorries this side of the pond you would tighten the bearing up to make sure it was well seated, and then back off a tad, (Imperial technical term ) but some specify a small pre-load.

Any help would be appreciated

Olley

[MarkD]

Olley, I have the same question/situation for my front left wheel. I'm also interested in the answer. Also, how do you do adjust the bearings?

Mark
2005 Monaco Monarch 33' W22 22.5 tires

[DriVer]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by olley:
Hi Driver site glass is up to level so no prob. there, movement top/bottom and side to side, its only a very small amount of movement. </div></BLOCKQUOTE>Olley, here's what I have for you so far.

Wheel Bearing Adjustment (I-Beam)
For the front axle, hub and components, refer to Front
Axle, Steering Knuckle, Hub, and Components
(/-Beam Suspension).
Notice: Never preload the front wheel bearings.
Damage can result by the steady load on the roller
ends that comes from preloading.
Important:
Adjust the front wheel bearings correctly in order
to ensure the front suspension functions properly.
<LI> The bearings must be a slip fit on the spindle.
<LI> Lubricate the bearings in order to ensure that the
roller bearings will roll and not skid.
<LI> The spindle nut must have a free-running fit on
the spindle threads.
1. Raise the vehicle. Support the vehicle with
suitable safety stands under the lower
control arms.
2. Remove the retainer cap.
Notice: Refer to Fastener Notice in Cautions and
Notices.
3. Remove the cotter pin.
Tighten
Tighten the spindle nut (5) to 153 Nm (113 lb ft)
while rotating the wheel 360 in both directions.
This rotation will properly position the bearings.
4. Back the nut off one flat. 1/6th rotation.
<LI> If the hole in the spindle lines up with the slot
in the nut, insert the cotter pin.
If these do not line up, back off the nut until
these line up. Do not back off the nut more
than one additional flat.
5. Measure the end play in the hubrotor. This
measurement should be between 0.013-0.20 mm
(0.0005-0.008in) when properly adjusted.
6. Install the retainer cap.
7. Lower the vehicle.
8. Check the front wheel alignment. Refer to Wheel Alignment Specifications in Wheel Alignment.
9. Install the bolts, washers, hub cap,
and new gasket to the hub.
Tighten
Tighten the hub cap mounting bolts evenly to
13 Nm (115 lb in).
10. Fill oil to the level on the window
<LI> Remove the window plug.
<LI> Fill the oil to the proper level. Refer to
Adding Lubricant to the Hub Caps in this
supplement.
<LI> Install the window plug.
14. Lower the vehicle.

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So the answer is yes there should be a slight amount of play in the wheel however the play can not be any greater than .007 of a inch or the seal will fail and a leak will ensue, bearing failure, wheel loss etc. Very ugly.

You will need to use a lateral run-out dial indicator to measure down to .0005 of an inch but if you kept the end play in between .001 and .002 you would be good to go.

[olley]

Thanks very much Driver, thats answered my question, I will check how much play I have and adjust if necessary.

Once again thank you.

olley