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LouSWPA 
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Joined: 11 Sep 2009
Location: Clinton, Pa
Points: 24021
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 Topic: wheel bearing advice
Posted: 25 Mar 2024 at 5:15pm |
any advice on installing new wheel bearings? I always just run the nut down by feel, just until I feel resistance, spin the wheel several turns in each direction, snug i little more, repeat, and then turn nut tighter to the next available cotter pin slot. However, recently, I was told by a commercial truck garage manager that they are required to use manufacturer torque specs. Never heard of that! So I am working on an equipment trailer, 10k GVW. Wonder where I would get specs for it. Anybody ever hear of this? I'm the quintessential 'shade tree mechanic', so maybe it's always been that way and I am to dumb to know any better.
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I am still confident of this;
I will see the goodness of the Lord in the land of the living.
Wait for the Lord;
be strong and take heart and wait for the Lord. Ps 27
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Les Kerf
Orange Level
Joined: 08 May 2020
Location: Idaho
Points: 605
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Posted: 25 Mar 2024 at 5:42pm |
I have always done it by feel, however:
From a Timken manual:
Use a torque
wrench to tight-
en the adjusting
nut to 50 ft. lbs.
while turning
the rotor. Back
off the adjusting nut 1 full turn. Then
retorque the nut to 10 ft. lbs. while turn-
ing the rotor. Next, back off the adjust-
ing nut 1⁄4 turn. Lock the nut with a new
cotter pin.
8 Check bearing adjustment
Use a dial indica-
tor to measure
end play. Mount
the indicator
base as close to
the center of the hub/rotor as possible.
With the indicator tip against the end
of the spindle, set the indicator at zero.
Grasp the rotor at three o’clock and nine
o’clock. Push the rotor in while oscil-
lating and read the dial indicator. Then
pull the rotor out while oscillating and
read the dial indicator again. The bearing
end-play is equal to the total indicator
movement, which should be between
0.001” and 0.007”. If not, repeat steps
7 and 8.
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Hubert (Ga)engine7
Orange Level
Joined: 12 Sep 2009
Location: Jackson Cnty,GA
Points: 6126
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Posted: 25 Mar 2024 at 6:09pm |
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We had to use the high torque, spin, loosen and retorted to a lower setting on all aircraft wheel bearings. I use the same procedure on every wheel bearing I install now. The overtorque and spin seats the bearing and race and then you loosen it and get the correct torque. Your wheel bearings will last a lot longer if well lubricated and installed to specification.
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Just an old country boy saved by the grace of God.
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jaybmiller
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Joined: 12 Sep 2009
Location: Greensville,Ont
Points: 21465
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Posted: 25 Mar 2024 at 6:28pm |
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Man I'd PAY to have a Timken guy come and do that procedure to all 4 hubs on Lou's trailer, especially to see that last part !!!!
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3 D-14s,A-C forklift, B-112
Kubota BX23S lil' TOOT( The Other Orange Tractor)
Never burn your bridges, unless you can walk on water
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WF owner
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Joined: 12 May 2013
Location: Bombay NY
Points: 4388
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Posted: 25 Mar 2024 at 6:59pm |
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Gary
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Joined: 13 Sep 2009
Location: Peterborough,On
Points: 5171
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Posted: 25 Mar 2024 at 7:19pm |
Here is a Link to a Video produced by Dexter - a large float and RV Axle manufacturer. This video illustrates the proper procedure for servicing or replacing axle bearing components. The required final bearing torquing starts at time 5:55. G https://www.youtube.com/watch?v=GnH-h3W9XvI.................................................................. Sorry Curt - I locked in to 'Reply' and then went to find the link. Gary
Edited by Gary - 25 Mar 2024 at 7:22pm
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LouSWPA
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Joined: 11 Sep 2009
Location: Clinton, Pa
Points: 24021
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Posted: 25 Mar 2024 at 8:04pm |
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thanks guys, that helps
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I am still confident of this;
I will see the goodness of the Lord in the land of the living.
Wait for the Lord;
be strong and take heart and wait for the Lord. Ps 27
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LouSWPA
Orange Level Access
Joined: 11 Sep 2009
Location: Clinton, Pa
Points: 24021
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Posted: 25 Mar 2024 at 8:47pm |
 Gary wrote:
Here is a Link to a Video produced by Dexter - a large float and RV Axle manufacturer.
This video illustrates the proper procedure for servicing or replacing axle bearing components.
The required final bearing torquing starts at time 5:55.
G
https://www.youtube.com/watch?v=GnH-h3W9XvI
..................................................................
Sorry Curt - I locked in to 'Reply' and then went to find the link.
Gary
Now that is very interesting! don't spin the drum when tightening!?!? and then finger tight, and back off to first castle nut slot available. That is counter to anything I've hear before. However, these are Dexter axles (I didn't know that when I first posted), so I will do it their way. |
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I am still confident of this;
I will see the goodness of the Lord in the land of the living.
Wait for the Lord;
be strong and take heart and wait for the Lord. Ps 27
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Les Kerf
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Joined: 08 May 2020
Location: Idaho
Points: 605
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Posted: 25 Mar 2024 at 11:51pm |
From Hyatt Wheel Bearing Adjustment Guide:
3. After the wheel hub and bearings are assembled on the spindle, torque the inner
adjusting nut while rotating the hub assembly.
4. Back off the inner adjusting nut one full turn while rotating the hub assembly.
5. Re-torque the inner adjusting nut while rotating the hub assembly.
6. Back off the inner adjusting nut. This amount depends on the axle type and
threads per inch of the nut.
7. Install the locking washer. 8. Install and torque the outer jam nut. This torque value depends on axle type,
threads per inch of the nut and nut size.
9. Verify end play with a dial indicator.
Edited by Les Kerf - 25 Mar 2024 at 11:52pm
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DMiller
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Joined: 14 Sep 2009
Location: Hermann, Mo
Points: 29493
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Posted: 26 Mar 2024 at 3:33am |
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Been installing grease and oil filled hubs as noted by snugging down by while rotating then backing off and returning to just snug then backing to first cotter pin slot on single nut axles for over fifty years. As to lock nut axles with a locking washer either folded or pin locked repeat same practice but leave just off snug for inner nut set lock and tighten outer nut against lock, always snugged back up as tightened the outer on their own. Not ever had a seal or bearing failure assembling that way.
New design I ran into on my KW was preloaded with a Crush Sleeve axle bearings on it. Drives torqued to 350 lbs and set lock nut, steers to 250 lb, rolled free but was different. Sleeve replaced at every hub removal with new seal install was the information I attained fir these.
Edited by DMiller - 26 Mar 2024 at 3:36am
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