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87-155 Roller Assembly, 7/16" Concave Wheel

I am unable to find any markings on this plastic housing with brass wheel window roller. Anybody recognize it?

Hello. I have several Masterview by Atrium windows that are missing wheels and a few more missing wheels with the plastic piece. Do you have these replacements available? Thanks! Fred

A lot of my windows are missing these wheels. It seems like they pop off and can be replaced to the other piece still attached. And some windows seem to be upside down and wheels on top. But need them on bottom so they can slide easier.

Couldn't download my pics to your forum. Here are three pictures. Length is 1" width is 3/4" height is 1/2" There are two channels on the bottom of the plastic guide. the width is 3/8" wide the cradle for the wheel is 3/8" wide and 1/4" from axle to plastic base Can you recommend a r ... (cont.)

Hi, I have attached some photos and hopefully you can figure out the part we need. I am told it is a sash balance. It is a sideways window and a plastic part has been thrown away by accident. It will not lock properly now.

Hi, I am replacing worn rollers and housings that exactly matches the 87-155. Basically the metal roller axle has worn into the plastic housing. Is there an equivalent metal housing with a axled wheel that can replace the plastic 87-155 (with same dimensions)? Thanks, -Huibert