Work machine

A work machine comprising:

• a gear housing;
• a spindle protruding in a first direction from the gear housing;
• a bearing held by the gear housing and comprising an inner race and an outer race, the bearing rotatably supporting the spindle;
• a tip tool attachment portion to which a tip tool is attachable, the tip tool attachment portion being provided at the spindle;
• a sealing member positioned further in the first direction than the bearing;
• and
• a restricting member for restricting the sealing member from moving in the first direction,
• wherein the gear housing comprises a bearing holding portion molded integrally with the bearing, the bearing holding portion holding the bearing,
• wherein the bearing holding portion comprises:
• a cylindrical supporting member extending in the first direction, the cylindrical supporting member supporting an outer circumferential surface of the outer race;
• and
• a protruding portion positioned further in the first direction than the outer race, the protruding portion protruding inward in a radial direction of the spindle from the cylindrical supporting member to restrict the bearing from moving in the first direction,
• wherein an inward end in the radial direction of the protruding portion is positioned further inward in the radial direction than the outer circumferential surface of the outer race and further outward in the radial direction than an inner circumferential surface of the outer race,
• wherein the sealing member is provided between the spindle and the protruding portion,
• wherein at least a part of the sealing member is overlapped with the inner race in an axial direction of the spindle, and
• wherein the restricting member is held either by the spindle or by the bearing holding portion.