Friction part

A friction part for a frictionally operating device comprising:

• an annular disk-like friction surface comprising:
• a first row of first friction lining pieces extending in a circumferential direction and arranged radially inwardly;
• a second row of second friction lining pieces extending in the circumferential direction and arranged between the first friction lining pieces and a third row of third friction lining pieces;
• the third row of third friction lining pieces extending in the circumferential direction and arranged radially outwardly;
• stem grooves formed in the circumferential direction between adjacent pairs of the first friction lining pieces;
• radially inner branch grooves emerging from the stem grooves, delimited by the adjacent pairs of the first friction lining pieces and by the second friction lining pieces;
• and
• radially outer branch grooves delimited by the second friction lining pieces and the third friction lining pieces, wherein the radially inner branch grooves and the radially outer branch grooves are connected to each other by offset grooves having a direction component in the circumferential direction that provides a tangential offset between the radially inner branch grooves and the radially outer branch grooves.