This model of castor allows for the creation of folding sliding gates for tight spaces or to be able to roll the gate on a curved rail. You can see in the photos the different installation possibilities. The groove is designed for a 16 mm rail, and the pivot diameter is 53 mm.
It is welded directly to the gate on the side or positioned inside it. To do this, a hole of 53 mm in diameter must be planned.
The wheel includes two 6203Z bearings. The type of steel used is 11SMn30.
Very durable product with a greaser on the top part; ideally, it is recommended to add grease every year to protect the bearings from the elements.