Help identifying rollers

Question

This door is 40-50 years old. The channel in 1-1/2" deep and 7/8" wide (extrusion is 1" wide exterior dimension). The door frame is in OK shape, with exception of one of the joining screws, but the wheels are in bad shape. The top rollers are OK, though I would replace them if I could if there is something better.

This is a salt-air application.

These are the best pictures I can get without dissembling the door, which I'm reluctant to do without certainty of replacement parts being available. I'm not sure the wheel assembly will come out in one piece.

Casey · Accepted Answer

Your top roller looks like our 84-082, which tells me that the bottom roller could be the 81-112. Unfortunately, this is only made in one material, which is anodized steel. I can only suggest to spray them with a silicone spray every once in a while to keep them lubricated and water resistant.