Need Replacement Pella Casement Rollers

I need help identifying some replacement rollers that go at the bottom of what I think are referred to as casement windows made by Pella.

Hello,

Thank you for having a look at it.

I believe these windows were made about 1985.

Please provide price and availability for one of each left and right hand side for now.

Once I know how much each unit is i will decide how many i would like to purchase - say up to 6 each as I have quite a few of these that are worn out. Do they include the teflon? shims??

Thank You!

I am looking for somthing similar. in the picture you have a long mounting arm with a roller and the toothy guide that runs in a track on the window sill. My windows are Pella but the corresponding part in my window has the roller but the claw and toothy plastic guide are directly beside the roller and the assembly is only like 6 inches long and is held in by 2 small screws, same with the top guide assembly. The hinge arm on the bottom and top are not part of the hinges, they're just 1 piece, 1 end bolted to the sill, the other to the window. I am looking for both top and bottom hinges