Do Doors have Wheel Bearings?
Yes, there is a bearings in sliding door .
The bearings are ball bearings ,the shape are with U groove or V shape ,MKL BEARINGS can produce with different non-standard bearings as your requirements .
With bearings can reduce friction, which is especially helpful on heavier doors, like those at an entry or with an automatic closer. The bearings make opening and closing a door consistently easier, smoother and quieter.
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