Product Description Sliding Gate Roller It has Y, U, V grooves and works with ground track . Used for sliding gates, finshed with zinc plated, It has single bearing or double bearings, The color can be white or yellow. We have size from 50mm to 140mm, Warmly welcome you to send us inquiry to ask for details ! Product Code Diameter(mm) A (mm) C (mm) H (mm) Capacity 2 wheels Weight(kg) H-BY50…