The work equipment for a motor grader includes: a rotary machine main body for rotating an outer gear engaging with an inner gear provided on an inner peripheral surface of an inner ring of a bearing; and a rotary machine lubrication unit provided on a gear cover in a circle rotary machine and for supplying a lubricant to a space, wherein the gear cover is provided in the rotary machine main body, covers the outer gear from the outer peripheral side thereof, forms the space between the outer gear and the gear cover, and is fixed to a drawbar plate.

The work equipment for a motor grader includes: a rotary machine main body for rotating an outer gear engaging with an inner gear provided on an inner peripheral surface of an inner ring of a bearing; and a rotary machine lubrication unit provided on a gear cover in a circle rotary machine and for supplying a lubricant to a space, wherein the gear cover is provided in the rotary machine main body, covers the outer gear from the outer peripheral side thereof, forms the space between the outer gear and the gear cover, and is fixed to a drawbar plate.

A work equipment includes: a drawbar having a drawbar plate; a bearing having an outer ring which is fixed to a lower surface of the drawbar plate, and an inner ring which is disposed inside the outer ring and is connected to the outer ring so as to be rotatable in a peripheral direction with respect to the outer ring; and a circle having a circle plate that is fixed to a lower end of the inner ring over the peripheral direction, an outer peripheral-side wall portion that is connected to an outer peripheral side of the circle plate and has a cylindrical shape surrounding the bearing from an outer peripheral side, and an inner circumferential-side wall portion protruding from the upper surface of the circle plate between the bearing and the outer peripheral-side wall portion, extends in the peripheral direction, and faces the outer ring in the radial direction.

A work equipment includes: a drawbar having a drawbar plate; a bearing having an outer ring which is fixed to a lower surface of the drawbar plate, and an inner ring which is disposed inside the outer ring and is connected to the outer ring so as to be rotatable in a peripheral direction with respect to the outer ring; and a circle having a circle plate that is fixed to a lower end of the inner ring over the peripheral direction, an outer peripheral-side wall portion that is connected to an outer peripheral side of the circle plate and has a cylindrical shape surrounding the bearing from an outer peripheral side, and an inner circumferential-side wall portion protruding from the upper surface of the circle plate between the bearing and the outer peripheral-side wall portion, extends in the peripheral direction, and faces the outer ring in the radial direction.

A work equipment for a motor grader comprising: a drawbar including: a drawbar plate and an outer peripheral-side rib that is integrally fixed to the drawbar plate so as to protrude from a lower surface of the drawbar plate; and a circle including a circle plate that protrudes outside of the outer peripheral-side rib in the radial direction and forms a lower-side gap between a lower end of the outer peripheral-side rib and the circle plate; and an outer peripheral-side wall portion that is connected to the outer peripheral side of the circle plate, has a cylindrical shape surrounding the outer peripheral-side rib from an outer peripheral side of the outer peripheral-side rib, and forms a clearance between the lower surface of the drawbar plate and the outer peripheral-side wall portion.

A work equipment for a motor grader comprising: a drawbar including: a drawbar plate and an outer peripheral-side rib that is integrally fixed to the drawbar plate so as to protrude from a lower surface of the drawbar plate; and a circle including a circle plate that protrudes outside of the outer peripheral-side rib in the radial direction and forms a lower-side gap between a lower end of the outer peripheral-side rib and the circle plate; and an outer peripheral-side wall portion that is connected to the outer peripheral side of the circle plate, has a cylindrical shape surrounding the outer peripheral-side rib from an outer peripheral side of the outer peripheral-side rib, and forms a clearance between the lower surface of the drawbar plate and the outer peripheral-side wall portion.

The work equipment for a motor grader includes: a rotary machine main body for rotating an outer gear engaging with an inner gear provided on an inner peripheral surface of an inner ring of a bearing; and a rotary machine lubrication unit provided on a gear cover in a circle rotary machine and for supplying a lubricant to a space, wherein the gear cover is provided in the rotary machine main body, covers the outer gear from the outer peripheral side thereof, forms the space between the outer gear and the gear cover, and is fixed to a drawbar plate.

The work equipment for a motor grader includes: a rotary machine main body for rotating an outer gear engaging with an inner gear provided on an inner peripheral surface of an inner ring of a bearing; and a rotary machine lubrication unit provided on a gear cover in a circle rotary machine and for supplying a lubricant to a space, wherein the gear cover is provided in the rotary machine main body, covers the outer gear from the outer peripheral side thereof, forms the space between the outer gear and the gear cover, and is fixed to a drawbar plate.

A work equipment includes: a drawbar having a drawbar plate; a bearing having an outer ring which is fixed to a lower surface of the drawbar plate, and an inner ring which is disposed inside the outer ring and is connected to the outer ring so as to be rotatable in a peripheral direction with respect to the outer ring; and a circle having a circle plate that is fixed to a lower end of the inner ring over the peripheral direction, an outer peripheral-side wall portion that is connected to an outer peripheral side of the cycle plate and has a cylindrical shape surrounding the bearing from an outer peripheral side, and an inner circumferential-side wall portion protruding from the upper surface of the circle plate between the bearing and the outer peripheral-side wall portion, extends in the peripheral direction, and faces the outer ring in the radial direction.

A work equipment includes: a drawbar having a drawbar plate; a bearing having an outer ring which is fixed to a lower surface of the drawbar plate, and an inner ring which is disposed inside the outer ring and is connected to the outer ring so as to be rotatable in a peripheral direction with respect to the outer ring; and a circle having a circle plate that is fixed to a lower end of the inner ring over the peripheral direction, an outer peripheral-side wall portion that is connected to an outer peripheral side of the cycle plate and has a cylindrical shape surrounding the bearing from an outer peripheral side, and an inner circumferential-side wall portion protruding from the upper surface of the circle plate between the bearing and the outer peripheral-side wall portion, extends in the peripheral direction, and faces the outer ring in the radial direction.