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Greasing motor

redbart4

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Joined
Apr 21, 2023
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Location
San Francisco , Ca.
Hi i have a bafang 48v 500w motor i bought a year ago. Not sure how long warranty is . I put alot of miles on it. It has three dual gears (nylon) . What is the best grease to use inside the motor.
 
The problem with grease is that if you choose one incompatible with existing grease, you can make things worse by making it either too hard or too liquid. If the manufactuter can tell you what they used, it would be safest. My 10 year old 500w geared motor has never been re-greased, and it runs just fine.
 
There's plenty to choose from. Couldn't tell you what the "best" is. I use Mobil 28, I think it's called.

You'll need a solvent to melt away the old grease. Degreaser ought to suffice, does for me, squirted from pressurised spray cans in a narrow jet it gets rid of the grease easily enough, with an old toothbrush to get rid of the big blobs.

Once the gears are clean, inspect for mangled and/or cracked teeth. Cracks can be small, magnifying glass might help.
 
You'll need a solvent
Probably, just don't get too carried away. I too use a tooth brush also, but dip it first in a small container, instead of trying to flood the whole assembly with thin solvents. Then squirt the area with reduced air pressure. And, don't forget the protective hand and eye wear.
 
Yes, "need" might be an overstatement.

Not a bad idea have vinegar on hand if working with caustic substances. Vice versa for acids, have a mild alkaline solution pre-prepared to slosh on your skin if there's an accident. (Very short window with chemical burns, no time to go hunting around in the pantry after the event,)
 
Not a bad idea have vinegar on hand
Funny... you reminded me the last time I used vinegar (white). Someone told me ages ago it was 'thee' cat's meow for athlete's foot. And I'll be damned... 5 min soak... 20 mins later and poof!... gone.
 
Guess fungi can't tolerate low pH. For a dollar a litre you can't go too wrong.
 
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