Track Roller also can be called Bottom Roller, Lower Roller, some people just called it roller, it's been used in a crawler machine like crawler excavator, crawler bulldozer.
So we gave the definition as below:
In a crawler machine, the small wheels that are under the track frame and that rest on the track chain.
Here I just put a reference photo for you to understand
Today we are talking about Track Roller / Bottom Roller / Lower Roller, how does it look like?
They look like
They have different shapes, so here we show some drawings
How to buy the track rollers?
First you have to know the shape, then you have to check the dimensions, here I also show you some for your reference
Anyway, if you need more help, you can contact me, woltermachine.com