A gear pump comprising: a pump housing; a first gear having gear teeth and disposed in the pump housing; a second gear having gear teeth and disposed in the pump housing, wherein the gear teeth of the first gear and the gear teeth of the second gear are meshed in a mesh region, and wherein the first gear and the second gear each include respective trunnions on opposite sides thereof; a bearing including: a bearing interface; an inlet cavity defined in the pump housing adjacent the first gear and the second gear, on one side of the mesh region, the inlet cavity configured to receive a lightly pressurized liquid feed in a flow direction into the inlet cavity so as to urge the lightly pressurized liquid feed to the first gear and the second gear; a pump outlet defined in the pump housing adjacent the first gear and the second gear, on an opposite side of the mesh region from the inlet cavity, the pump outlet configured to convey a high pressure liquid feed from the gear pump; wherein the bearing is configured to support at least one trunnion of the first gear and/or the second gear with the bearing interface defined between the bearing and the trunnion, wherein a flow path is defined between the bearing interface and the inlet cavity and having a plurality of openings, at least one opening of the plurality of openings being in flow communication with the inlet cavity outside of and spaced from the mesh region upstream of the mesh region in relation to the flow direction, characterised in that the at least one opening to the flow path is configured for flow of the lightly pressurized liquid feed into the flow path transverse to a direction of lightly pressurized liquid feed flow into the inlet cavity, the flow path providing the lightly pressurized liquid feed to the bearing interface. a pump housing; a first gear having gear teeth and disposed in the pump housing; a second gear having gear teeth and disposed in the pump housing, wherein the gear teeth of the first gear and the gear teeth of the second gear are meshed in a mesh region, and wherein the first gear and the second gear each include respective trunnions on opposite sides thereof; a bearing including: a bearing interface; an inlet cavity defined in the pump housing adjacent the first gear and the second gear, on one side of the mesh region, the inlet cavity configured to receive a lightly pressurized liquid feed in a flow direction into the inlet cavity so as to urge the lightly pressurized liquid feed to the first gear and the second gear; a pump outlet defined in the pump housing adjacent the first gear and the second gear, on an opposite side of the mesh region from the inlet cavity, the pump outlet configured to convey a high pressure liquid feed from the gear pump; wherein the bearing is configured to support at least one trunnion of the first gear and/or the second gear with the bearing interface defined between the bearing and the trunnion, wherein a flow path is defined between the bearing interface and the inlet cavity and having a plurality of openings, at least one opening of the plurality of openings being in flow communication with the inlet cavity outside of and spaced from the mesh region upstream of the mesh region in relation to the flow direction, characterised in that the at least one opening to the flow path is configured for flow of the lightly pressurized liquid feed into the flow path transverse to a direction of lightly pressurized liquid feed flow into the inlet cavity, the flow path providing the lightly pressurized liquid feed to the bearing interface. a bearing interface; an inlet cavity defined in the pump housing adjacent the first gear and the second gear, on one side of the mesh region, the inlet cavity configured to receive a lightly pressurized liquid feed in a flow direction into the inlet cavity so as to urge the lightly pressurized liquid feed to the first gear and the second gear; a pump outlet defined in the pump housing adjacent the first gear and the second gear, on an opposite side of the mesh region from the inlet cavity, the pump outlet configured to convey a high pressure liquid feed from the gear pump; wherein the bearing is configured to support at least one trunnion of the first gear and/or the second gear with the bearing interface defined between the bearing and the trunnion, wherein a flow path is defined between the bearing interface and the inlet cavity and having a plurality of openings, at least one opening of the plurality of openings being in flow communication with the inlet cavity outside of and spaced from the mesh region upstream of the mesh region in relation to the flow direction, characterised in that the at least one opening to the flow path is configured for flow of the lightly pressurized liquid feed into the flow path transverse to a direction of lightly pressurized liquid feed flow into the inlet cavity, the flow path providing the lightly pressurized liquid feed to the bearing interface.