railway air spring
Item: FT 640G
Effective diameter/mm: 640
Vertical deflection capacity/mm: ±30
Horizontal deflection capacity: ±60
Pressure at max load Mpa/t : 0.5/16
Max dimension/mm: 750
Design height/mm: 255
System weight/kg: 160
Vertical stiffness of layer spring/N.mm-1: about 9000