TSDZ2 new blue gear much noisier

[bjorns]

I thought first that my problem was the blue gear, so I got a new one and exhanged it. Now the motor is much noisier than it has ever been. What could be the cause of that? Wrong kind of greese?

/Björn

 

[calab]

Tell us exactly what you have for the materials used in the gears, I assume they are mixed now?
Meaning if 3 gears are used, you have 2 that are some sort of plastic and the third being different all together with more steel or something.

Grease could help, what grease are you using?

I thought first that my problem was the blue gear, so I got a new one and exhanged it. Now the motor is much noisier than it has ever been. What could be the cause of that? Wrong kind of greese?

/Björn

 

[bjorns]

I have replaced the original (nylon?) blue gear with a new one that I expect is made of the same material. The grease is lithium based grease made for bearings etc.https://www.clasohlson.com/se/Universalfett-CRC-100-ml/p/Pr319136000

 

[calab]

Unless you bought it from the manufacturer then its a coin flip, who really knows what the gear is made of.
Sure Nylon, but whats the percentage mixture, is it glass or metal fiber reinforced or some other concoction.
Different materials will have different characteristics and make differing noises.
If you look at it and its exactly the same then you might be good, but who really knows.
The key is to buy the new gear from the manufacturer, or better yet buy all the gears from them so its a given they are all the same material because your motor might be older by years and use different material gear then what they use today.

I'd say the only thing you can really do now is try different greases and just double check if the bearings and fitment of all the gears is the same.

You could try to mask the gear sound with knobbier tires.

You could just put up with the sound, but in general mid drives are loud, I cant tell you how they compare to geared hub motors, but direct drive hub motors are silent.

Another thing you could try is a sinusodial instead of trapezoidal or square waveform controller.

 

[Hillhater]

The TSDz2 only has one blue plastic gear, the mating gears are all steel.
What sort of noise is it ?
It may be bearings , or just different allignment when reinstalling the motor and gears.( their positioning is not very precise. Try dismantleing and carefully reassembling to get a closer gear mesh.
Alternatively , it could be a electronic noise from the controller.