TQ HPR60 Internal Changes

[TopUnit]

I've had a look at the images released by TQ on the HPR60 motor internals and noticed a significant change to the Pin Ring drive compared to the HPR50. It now has twice the engagement between the input ring (red) and the output ring (green) This was probably necessary to handle the extra torque, but could also address existing issues (if any)

I've updated the CAD model I did for the HPR50 so you can see the changes that have been made to the pin ring drive (might not be 100% accurate but is my best guess based on the images I have seen)

(Edit) I've since seen images of TQ's exploded model that was displayed at EuroBike. I can't see any additional changes to those I've already shown below

Also I've done a number of TQ motor related videos on youtube at Tony W

 

[1234]

Very cool.

 

[TQmotorguy]

I've had a look at the images released by TQ on the HPR60 motor internals and noticed a significant change to the Pin Ring drive compared to the HPR50. It now has twice the engagement between the input ring (red) and the output ring (green) This was probably necessary to handle the extra torque, but could also address existing issues (if any)

I've updated the CAD model I did for the HPR50 so you can see the changes that have been made to the pin ring drive (might not be 100% accurate but is my best guess based on the images I have seen)

(Edit) I've since seen images of TQ's exploded model that was displayed at EuroBike. I can't see any additional changes to those I've already shown below

Also if you haven't seen my HPR50 CAD model you can check it out on youtube at Tony W

View attachment 163209
View attachment 163125

Very well done and informative! I know the external heat sink fins are expected to improve the thermal throttling problems some have with the hpr50.
Have you found any further details on the new hpr40? I’m interested in that evolution in the other (lower power) direction as e-road bikes get lighter and feeling even more agile.

 

[TQmotorguy]

Yes I've had a good look into the HPR40. Like you said it's designed for road (and gravel) bikes.
They went all out to make it more compact (and lighter). The key difference that helps (other than lower power) is that the chainring is not driven by the motor, rather it is driven by the crank like a conventional bike, so they don't need the whole mechanism for driving the chainring including a oneway clutch. This means they can't do overrun like on most mid mount motors which is highly desirable on an MTB but probably not desirable on a road bike.

Heres a preview of HPR40 CAD model I'm working on

View attachment 164222

Nice! Thanks for your assessment and the info. As you get more I hope you will post updates.

 

[Youfirst]

I've had a look at the images released by TQ on the HPR60 motor internals and noticed a significant change to the Pin Ring drive compared to the HPR50. It now has twice the engagement between the input ring (red) and the output ring (green) This was probably necessary to handle the extra torque, but could also address existing issues (if any)

I've updated the CAD model I did for the HPR50 so you can see the changes that have been made to the pin ring drive (might not be 100% accurate but is my best guess based on the images I have seen)

(Edit) I've since seen images of TQ's exploded model that was displayed at EuroBike. I can't see any additional changes to those I've already shown below

Also I've done a number of TQ motor related videos on youtube at Tony W

View attachment 163209
View attachment 163125

Watched the YouTube videos you've made on the TQ series and they provide an excellent way to understand what is boosting me uphill (TQ50 here).
Comprehensive videos to say the least. Very, very nice work you've done there. Thank you!