Excavator Pump Parts Hpv75 Piston Shoe 708-1W-33310 Set Of 9 Pc Fits For Pc60-7 Pump

Excavator Pump Parts Hpv75 Piston Shoe 708-1W-33310 Set Of 9 Pc Fits For Pc60-7 Pump

Attached to the spherical end of the piston, the piston‑shoe slides against the swash‑plate surface. Its tail passes through the holes of the set‑plate.

Core Functions

Sliding load‑bearing: Its bottom surface slides on the swash‑plate and bears high pressure loads, preventing direct friction between the piston ball‑head and swash‑plate.

Oil‑film lubrication: High‑pressure oil flows through the small central hole to form an oil‑film between the shoe and swash‑plate for friction reduction.

Power transmission: Transmits thrust from the swash‑plate to drive the piston for reciprocating movement inside the cylinder block.

Return‑stroke follow‑up: Held by the set‑plate, it keeps close contact with the swash‑plate during the piston return stroke.

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