yep and yep,, bearings run metal to metal and use the grease mainly as coolant,, so if you pack it tight the bearing will force it out somewhere,,
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yep and yep,, bearings run metal to metal and use the grease mainly as coolant,, so if you pack it tight the bearing will force it out somewhere,,
I do not see what is wrong with the hand method, which is what I use.
It is a good method, as it forces out any old grease that may be left from the cleaning . You can also see when the bearing is full as it will exude from the other side.
I usually turn the bearing a few times after it looks full, and then repeat, as there may be some air pockets.
Hint- put on a disposable plastic glove and use that to fill the bearing.
on completion, just pull the glove off inside out and no mess.
Regards Philip A
Have heard putting the grease and bearing in a plastic bag and doing it that why works as well, never tired it though.
I have and its a pain in the neck, compared to the hand method.
It is basically still the hand method, but inside a plastic bag.
IMHO, you end up with grease on the outside anyway, and the bearing is harder to manipulate. Try turning a bearing by sticking your fingers inside the hole, and turning the outside, through a plastic bag.
The reason for the plastic bag is cleanliness, as even with cleaned hands which are dirty from removing the bearing, dirt from your skin will get into the bearing. The disposable glove prevents that.
Regards Philip A
Before the days of sealed 'O' ring motorcycle chains and aerosol lubricants it was common practice (in the UK) to place the chain in a tin of grease and heat the tin until the grease melted and filled the chain. Said grease was actually supplied in the tin for the purpose. Also when doing my apprenticeship we used to have a special inductive bearing heater that warmed bearings up to allow them to be fitted to transition fit parts. The inductive heater warmed the bearing evenly to avoid hotspots that could damage the heat treatment of the races (warning - don't use on bearings with plastic cages).
From my experience I can see no reason why you shouldn't be able to heat a breaing in grease to fully lubricate it, so long as you don't go to hot to degrade the grease. That said the idea of clamping the bearing between two cones and injecting the grease with a grease gun sounds alot easier and safer to do. Hot gease, frying pan oil would be very nasty if spilt on the skin and would also be more flammable.
yea,, be clean, some of the bearings I used were worth upwards of a grand so ALL precautions were taken, new cans of grease, gloves, glad wrap, rollershutters closed, etc,
Honestly can't remeber the brand. Just have visions of dad in the shed with the can balanced on top of an old primus stove......oh those halicon days!
Another good reason to run oil bath wheel bearings.:D