JoelP
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| posted on 11/9/09 at 02:58 PM |
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what grease on hubs?
proper dumb question but google isnt playing ball and a search on here pull up thousands of threads - so what grease do i use to assemble a pair of
trailer hubs? I have a tub of CV grease, and im sure there is some moly grease somewhere? Help!
Ta 
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Mr Whippy
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| posted on 11/9/09 at 03:02 PM |
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moly grease
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JoelP
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| posted on 11/9/09 at 03:12 PM |
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cheers Mr W.
Just to check, you rub grease into both rollers, a bit in the middle but not too much, then do the castle nut up hand tight plus a bit and then pin
it?
These are dumb questions 
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jimgiblett
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| posted on 11/9/09 at 03:14 PM |
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Do not use CV grease for wheel bearings as it is not designed to take the heat.
Quote "Do NOT use moly greases in wheel bearings or in the steering head bearings. Moly tends to change to stiff flaky bits if used in those
roller bearing applications. As a general rule, do not use moly containing greases, oils, etc., at any place there is rotational speed differences,
or in ball bearings, needle or roller bearings, and most sleeve bearings. Moly is GREAT for most SLIDING surfaces."
Normal HT grease is what you are after.
- Jim
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jimgiblett
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| posted on 11/9/09 at 03:22 PM |
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Tighten the nut gently until there is no play (grab the wheel at 12 and 6 o'clock and feel for play) spin and repeat.
- Jim
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adithorp
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| posted on 11/9/09 at 03:33 PM |
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quote:
Originally posted by JoelP
cheers Mr W.
Just to check, you rub grease into both rollers, a bit in the middle but not too much, then do the castle nut up hand tight plus a bit and then pin
it?
These are dumb questions
Don't use Moly' grease!
You want high temp LM grease. The grease should take up about 1/3 - 1/2 the space around the bearing. Tighten the nut untill you have JUST taken out
the play and no more, then pin. It's easiest to judge/feel the play with the wheel on if thats possible. 90% of failed tapper wheel bearing are
caused by being over tightened.
adrian
ps...don't fill the cap with grease.
[Edited on 11/9/09 by adithorp]
"A witty saying proves nothing" Voltaire
http://jpsc.org.uk/forum/
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jimgiblett
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| posted on 11/9/09 at 03:45 PM |
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quote:
Originally posted by adithorp
The grease should take up about 1/3 - 1/2 the space around the bearing.
Hi Adrian
I was taught to "pack" the bearing with grease. Dollop in my hand and scoop and rotate until come out the other side. But have I been
doing it wrong ? This must be more than 1/2 the space.
- Jim
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britishtrident
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| posted on 11/9/09 at 04:01 PM |
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If is a car trailer either lithium or molly grease.
For boat trailler use white waterproof grease.
[I] “ What use our work, Bennet, if we cannot care for those we love? .”
― From BBC TV/Amazon's Ripper Street.
[/I]
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JoelP
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| posted on 11/9/09 at 04:32 PM |
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its for a 750kg box trailer - and the cv grease (contains moly) is in already  ah well. Can it be mixed, as i really didnt put much in? I can fill
them up via the nipples. Dont think they will get too hot as it is only for light use and short distances, and the grease said up to 125 degrees.
Ive left the pins off so i can do the tightness correctly once its on its wheels, whats the odds on me forgetting them?! 
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