OUTER BODY:Natural Rubber Load-Carrying MemberSPACER:Steel, Tubular RolledFOR LOADS OF:150 to 900 Pounds (68 to 408.2 kgf)TANDEM TYPE INSTALLATION:1. Lubricate mount and socket with water or rubber lubricant.2. Insert into socket, hand rotate with axial force.3. If necessary, use driving bolt. Care must be taken that thedriving bolt does not overhang the steel sleeve O.D.SELECTION CRITERIA:Calculate static load. Select a mount of equal or greater capacity. For dynamic load greater than 3X static load, select next larger size.