1.structure:cylindrical 2.type:roller 3.specification;long life, low noise,large stock 4.large stock Ball bearingstructure:cylindrical type: rollerBore size: 260-4500mm outside diameter: 400-5000mmcage material:brass/ nylon/ steel Number Row: single row Double row Stock: availablepacking & deliveryPacking details: Inner with polyester bag outer with carton Delivery details: 3-7 days Cylindrical ...