Recent content by BenGuise

They don’t sell ball bearings..

Those black axle pieces are intended to be used as axle couplers to connect two axles and they don’t fit into the holes of the bearing flat. I drilled a bigger hole into one of the plastic bearing flats though to see if it would work as a circular shaft and it actually works great.

They also offer what they call high strength axles, which are just a thicker version of the ones in the picture, so I was thinking about taking those and shaving them down into smaller cyclindrical axles with a lathe because they would technically be legal to compete with since they’re made from...

I compete in a robotics league called vex robotics and they have specific vex robotics branded parts that you’re limited to building with. And those are the shafts and bearing that they offer.

Yes, square shaft in a round bearing.

Here’s a picture of the full system. I want to know how to find the minimum force that needs to be exerted by the motor in order to rotate the axle. The cones from the motor and passes through a whole of one of the plastic bearing flats I sent a picture of on both sides of the gear tower. I...

Just to clarify, I’m trying to find the static friction. Thanks

They’re just bearing flats. Here’s a picture. heres a picture.

How would I calculate the frictional torque of rotating an axle with a square cross section? The axles that I’m using to drive a gear box are rectangular instead of cylindrical like normal axles, so I’m trying to figure out how much more a motor has to work to turn a square axle than it does to...