Steering device

A steering device comprising:

• a housing including a first planar surface, the housing being configured to accommodate a part of a rack shaft;
• an electric motor including a second planar surface facing the first planar surface, the electric motor including a bracket configured to support a rotary shaft;
• a tightening member configured to tighten the housing and the bracket in a state where the first planar surface and the second planar surface are mated;
• and
• a sealing member configured to provide sealing between the housing and the bracket at a position that is closer to the rotary shaft than the tightening member is, wherein
• at least one of the first planar surface and the second planar surface is formed with a recess located between the tightening member and the sealing member and depressed from the at least one of the first planar surface and the second planar surface,
• the bracket includes an outer peripheral surface, the outer peripheral surface being formed with a groove configured to be fitted with the sealing member,
• the housing includes an inner peripheral surface facing the outer peripheral surface,
• the first planar surface includes a first annular surface and a second annular surface, the first annular surface being formed at an end of a first cylindrical portion of the housing in an axial direction of the rotary shaft, the first cylindrical portion including the inner peripheral surface on an inner periphery thereof, the second annular surface being formed at an end of a second cylindrical portion of the housing in the axial direction, the second cylindrical portion being located closer to the tightening member than the first cylindrical portion is,
• the recess is formed between the first annular surface and the second annular surface, and
• the housing includes a rib in the recess, the rib being configured to connect an outer periphery of the first cylindrical portion and an inner periphery of the second cylindrical portion.