Here’s what characterizes flat rollers for UPVC applications:

• Flat Wheel Surface: The key feature is that the part of the wheel that contacts the track is flat. There is no groove or channel.
• Application: These are used in sliding mechanisms where the track is designed to accommodate a flat rolling surface. This might be a raised flat rail or a flat surface the roller rolls across.
• Material: The wheels are typically made of nylon or other durable plastics to provide smooth, quiet movement. The housing can be made of metal or plastic.
• Variety: Flat rollers can come in different diameters and widths, and can be single or double wheeled depending on the application’s load and stability requirements.