One-way bearing inside motor pulley to improve coasting?

Lightweight / Folding / Portable EVs - seats optional
Post Reply
User avatar
maxchilton   10 W

10 W
Posts: 92
Joined: Jul 15 2015 10:30am

One-way bearing inside motor pulley to improve coasting?

Post by maxchilton » Jul 07 2016 4:44pm

Does anyone have experience with putting a one-way bearing inside the motor pulley to improve coasting? Obviously I lose braking ability with the one-way but I'm looking to build a small 28-30 inch commuter board with a top speed of only 13-14mph, so it's not very fast at all. I can stop with my feet like I do with my regular boards.

How much drag is there on a belt driven e-board when you let off throttle?

Would epoxy be strong enough to hold the one way bearing inside the pulley?

In theory a one-way bearing would improve my watts/mile because I can coast further, anyone with experience on this?
.









das it mane.

User avatar
Chalo   100 GW

100 GW
Posts: 7961
Joined: Apr 29 2009 11:29pm
Location: Austin, Texas

Re: One-way bearing inside motor pulley to improve coasting?

Post by Chalo » Jul 07 2016 5:01pm

Some Unite brand and other comparable scooter motors had clutched sprockets.

Needle roller clutches are very compact and effective, but they are specified to be pressed into steel housings of a rated minimum thickness. If you have a steel toothed belt sprocket, that would likely work if its diameter is big enough for the clutch that fits the motor shaft.

You could always get yourself a safe and legal street vehicle instead of a hazardous toy.
This is to express my gratitude to Justin of Grin Technologies for his extraordinary measures to save this forum for the benefit of all.

torqueboards   100 MW

100 MW
Posts: 2940
Joined: May 27 2013 10:02pm
Location: San Francisco, CA
Contact:

Re: One-way bearing inside motor pulley to improve coasting?

Post by torqueboards » Jul 07 2016 6:08pm

You should go hub motors.. :mrgreen:
DIYElectricSkateboard.com Electric Skateboard Kits

Post Reply