How to prevent the centre axle of the TSDZ2 from breaking

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A great idea, fine operation, good software, reliable electronics and a crappy mechanical design. This is the Tongsheng TSDZ2. A little more effort should have been invested by the manufacturer to produce a world class product.
This video will show you how to prevent your TSDZ2 mid-engine centre axle from breaking.
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0:0 The broken axle
0:34 1.method: adding an extra bearing
4:44 2.method: new axle, without circlip grooves

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Опубликовано:

16 мар 2024

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Комментарии : 28

@larrym2434 4 месяца назад

This is great information. I wish Tongsheng would sell a better axle, but it shouldn't be too hard to track down that extra bearing ( 61902-2RS )

@larrym2434 4 месяца назад

Also, riding one-legged with the bungee cord to pull the pedal back up is hilarious.

@garth62 4 месяца назад

Having had a sheard axle (on the drive side) , I added extra sealed bearings on both sides to all 3 of my motors. The bearing fits nicely instead of the dust seal on the chainring spider and been fine since (have over 3k miles on each) - easier & cheaper to replace the bearing than axle but so far have been fine

@mcelec7603 4 месяца назад

What a great idea to put a bearing on the right side as well. It cannot be installed in the old TSDZ2 (this motor is at least five years old in the black Merida)) because the outer size of the sealing ring in the spider is 40mm in diameter, but my wife's red Merida already has a newer motor.

@vostock0998 4 месяца назад

very clever gonna try this later

@EBIKESBR 3 месяца назад

Good ideia!!

@cilami 4 месяца назад

Nice!! I also added an extra bearing to the right side. After removing the rubber seal, the bearing fits well inside the spider.

@mcelec7603 4 месяца назад

Great idea! This will really make this axle bulletproof. Only the torque sensor needs a good idea, because two of them broke in less than 15,000 km.

@cilami 4 месяца назад

@@mcelec7603 I wonder how good the Toseven motor's torque sensor will be.

@paultaylor3435 2 месяца назад

@@mcelec7603what faults did the torque sensors develop?

@mcelec7603 2 месяца назад

@@paultaylor3435 So far, I've had two torque sensors break, both at the same point. Sometimes the wire is damaged either to the stator or the rotor. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-6KaWK-GvpVo.htmlsi=HS4gz5sEHy4OiYuW&t=240

@mcelec7603 2 месяца назад

@@cilami I'm curious too. The next one will probably be a Toseven, as Pswpower.com has already put it on their webshop.

@utubeape 3 месяца назад

Perhaps your makeshift plate to stop the motor rotation caused a stress fracture?

@mcelec7603 3 месяца назад

At 0:18 you mean the slightly rusty plate to the right of the crown nut? That plate is just to protect the engine from rotation.

@utubeape 3 месяца назад

@@mcelec7603 yes I thought so, but as the motor tries to rotate it pulls the edge of the plate onto thetube, the bottom bracket housing, possibly putting pressure on the drive shaft. Well in any case you had a rare freak failure of parts

@brianbassett4379 2 месяца назад

It looks like you work on that bike more than you ride.

@mcelec7603 2 месяца назад

I smile because I told my wife almost the same thing a week ago.😃 One of the rear suspension components had broken then. Now I'm trying to identify a crackling sound. It seems the technology has had enough of the 5000 km a year.

@user-jr5ix2wm4e 22 дня назад

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-Gp6vJy0GpWc.htmlsi=IKgUBullpO3IDHPu я тоже люблю что нибудь чинить свой автомобиль например.. наверное я плохой водитель 😅