Suspension for outdoor robotic tools

An outdoor robotic tool comprising a first part and a second part, wherein the first part supports the second part through a suspension arrangement, the suspension arrangement comprising:

• a) a first component comprising a first magnetic member;
• and
• b) a second component comprising a second magnetic member;
• wherein the first component is attached to the first part, wherein the second component is attached to the second part, wherein at least one of the first and second magnetic members of suspension arrangement is a permanent magnet;
• and wherein the first magnetic member of the first component is positioned to magnetically interact with the second magnetic member of the second component when in use;
• wherein the magnetic interaction between the first magnetic member of the first component and the second magnetic member of the second component aligns the first part with the second part in a preferred alignment such that when a force causes the first part and second part to move out of the preferred alignment, the magnetic interaction between the first magnetic member of the first component and the second magnetic member of the second component draws the first part and the second part back into the preferred alignment,
• wherein the first part defines at least one first contact surface, and wherein the second part defines at least one second contact surface, wherein the at least one first contact surface is in contact with the at least one second contact surface in use, and
• wherein the at least one first and/or at least one second contact surface comprises a low-friction material.