Pros/cons of moly in wheel bearings?

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Used a moly grease (forgot which) on my mountain bike wheel bearings once. Tore 'em apart 2 years later and found that the balls where coated in what appeared to be metal. Grease was not washed or dried out. I guess this was the moly in the grease? No idea what % it was. I've been using non moly greases since in both my bikes and boat trailer bearings.
 
Originally Posted By: artificialist
Ford requires moly in their wheel bearings, that would indicate to me that there is a reason for it.

However, I see many people use non-moly grease in Ford wheel bearings without problems.

Ford bearings aren't any different from anybody else's bearings.
 
Originally Posted By: Kestas
Originally Posted By: artificialist
Ford requires moly in their wheel bearings, that would indicate to me that there is a reason for it.

However, I see many people use non-moly grease in Ford wheel bearings without problems.

Ford bearings aren't any different from anybody else's bearings.


I know, but it makes it interesting to me why Ford would require MoS2 in their wheel bearings when others don't.
 
Originally Posted By: artificialist
Originally Posted By: Kestas
Originally Posted By: artificialist
Ford requires moly in their wheel bearings, that would indicate to me that there is a reason for it.

However, I see many people use non-moly grease in Ford wheel bearings without problems.

Ford bearings aren't any different from anybody else's bearings.


I know, but it makes it interesting to me why Ford would require MoS2 in their wheel bearings when others don't.


Of the big 3 which PU Truck manufacturer is best known for its suspension, frame, etc. durability...?
 
Ford recommended wheel bearing has the proper amount of grease for wheel bearings .Some moly greases are designed for sliding surfaces like fifth wheels on a semi truck etc.
 
Originally Posted By: salesrep
Originally Posted By: artificialist
Originally Posted By: Kestas
Originally Posted By: artificialist
Ford requires moly in their wheel bearings, that would indicate to me that there is a reason for it.

However, I see many people use non-moly grease in Ford wheel bearings without problems.

Ford bearings aren't any different from anybody else's bearings.


I know, but it makes it interesting to me why Ford would require MoS2 in their wheel bearings when others don't.


Of the big 3 which PU Truck manufacturer is best known for its suspension, frame, etc. durability...?

I realize this is an older thread, but I'd like to add a bit, just food for thought....

If you're implying it's Ford, then you gotta' think SuperDuty for durability, etc.

SuperDuty front hubs are sealed units, vended to them by Timken.

Timken uses Exxon/Mobil Infinitec 152 to lubricate these bearings at time of manufacture.

It is a very heavy-duty, NON-moly, lithium-complex-based grease, blue in color.

So, though Ford specs moly, they get non-moly.

Pop
 
Originally Posted By: springerpop

SuperDuty front hubs are sealed units, vended to them by Timken.

Timken uses Exxon/Mobil Infinitec 152 to lubricate these bearings at time of manufacture.

It is a very heavy-duty, NON-moly, lithium-complex-based grease, blue in color.

So, though Ford specs moly, they get non-moly.

Pop

I brought this up because there are so many Econoline vans that use serviceable bearings.
 
Well that explains why the front wheel bearings were the only thing on my 2007 F-350 that DIDN'T blow up, fall off, or break down. Total POS truck. just had to vent.
 
I like the Mystik JT-6 No2 High-temp red grease for disc wheel bearings...best there is for the dollar and available at most wal-marts
 
Quote:


I know, but it makes it interesting to me why Ford would require MoS2 in their wheel bearings when others don't.


Of the big 3 which PU Truck manufacturer is best known for its suspension, frame, etc. durability...? [/quote]
I realize this is an older thread, but I'd like to add a bit, just food for thought....

If you're implying it's Ford, then you gotta' think SuperDuty for durability, etc.

SuperDuty front hubs are sealed units, vended to them by Timken.

Timken uses Exxon/Mobil Infinitec 152 to lubricate these bearings at time of manufacture.

It is a very heavy-duty, NON-moly, lithium-complex-based grease, blue in color.

So, though Ford specs moly, they get non-moly.

Pop [/quote]
And Koyo supplies Honda, Nissan and Toyota with wheel bearings pre-lubed in Shell Alvania #2 - Toyota actually called for coating the bearing races in a lithium-based MP grease before pressing in new bearings into their assemblies.
 
Here's the bottom line: Some people say, "Moly additive is great in wheel bearing use." Others will not use Moly in wheel bearings. GC-LB spec. approves both grease with and grease without Moly.
However, no one with any knowledge at all, will say, grease with Moly MUST be used on greaseable bearings, with the possible exception of the old Ford spec. (And, even at that, as an above post illustrates, the grease in Ford's current sealed wheel bearings is an excellent Exxon-Mobil product that does not contain Moly).
So, if you want to be as sure as you can be that your selection of a grease for greaseable wheel gearings and/or universals will be a correct and serviceable one, just choose a Lithium Complex heavy-duty NLGI #2 grease from a major manufacturer such as the afore-mentioned Hi-Temp Mystik LC #2 or Chevron Delo LC #2. Shell & Exxon-Mobil Infinitec are among the very best for these usages. None of these three contain Moly.
Now, if I'm going to grease a sliding joint, I DO want a good moly-additive grease, such as one of the excellent AC-based Schaeffer products or the also excellent LC Amsoil containing Moly.
 
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