1. This is Thyssen roller guide shoe, We are manufacture and can provide all kinds of roller guide shoe. 2. The Technical parameters: speed>=2.5m/s; for any width of guide rail, can adjust the width; 3. The roller dimensions : Φ153×32×2-6204 4. The hole dimension: 4-26×17, two holes distance in one side: 75, two holes distance in two side : 140; 5. Roller material: Polyurethane/Rubber; 6. Other material : Iron and Aluminun; 7. We can provide all kinds of roller guide shoes. 8. More information pls feel free to ask me.