This International Standard establishes the mounting dimensions required for interchangeability of rod end plain eyes of hydraulic cylinders. The rod end plain eyes have been designed specifically for use with cylinders manufactured in accordance with ISO 6020/1 and ISO 6022, but this does not limit their application.
These plain bearing end eyes are used on piston rods of hydraulic cylinders for mechanically transmitting the cylinder force. The design of these eyes is based on the maximum forces resulting from the specified internal diameters of the cylinders and pressures according to ISO 3320 and ISO 3322.
DS/ISO 6981:1989 history
1989DS/ISO 6981:1989 Hydraulic fluid power. Cylinders. Rod end plain eyes. Mounting dimensions